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                                • 800-HPALLOY
                                • 1985 E 500 N Windfall, IN 46076
                                  444 Wilson St Tipton, IN 46072
                                  Post Office Box 40 Tipton, IN 46072
                                  tel:8004725569

                                HAYNES 25 (L605, Stellite 25, UNS R30605)
                                AMS 5759, AMS 5537, UNS R30605

                                Request a quote

                                Co Base, Ni 10.0, Cr 20.0, W 15.00, Mn 1.5, C 0.33, Si 0.40, Fe 3.00, S 0.030, P 0.040


                                High Performance Alloys stocks and produces HAYNES 25 (L605) in this grade in the following forms: Bar, wire spools, wire cuts, sheet/plate, strip, tube. Request quote on this grade.

                                 

                                Features

                                • Outstanding high temperature strength
                                • Oxidation resistant to 1800° F
                                • Galling resistant
                                • Resistant to marine environments, acids and body fluids

                                 

                                Properties

                                HAYNES 25 (L605) is a non-magnetic cobalt based superalloy. HAYNES 25 (L605) maintains good strength upto 2150°F. AMS 5759 requires minimum yield strength of 45,000 psi at room temperature. HAYNES 25 (L605) maintains good oxidation resistance up to 1900° F. HAYNES 25 (L605) has a unique ability to resist corrosion in very severe environments. Highly resistant to hydrochloric acid, nitric acid and wet chlorine (subject to need for exercising care in its selection at certain con¬centrations and temperatures)


                                Applications

                                • Gas turbine engine combustion chambers and afterburners
                                • High temperature ball bearings and bearing races
                                • Springs
                                • Heart valves

                                 

                                 

                                Chemistry

                                Chemical Requirements

                                Ni

                                Cr

                                Mn

                                Si

                                Fe

                                S

                                Co

                                Max

                                11.00

                                21.00

                                2.00

                                0.40

                                3.00

                                0.030

                                Bal

                                Min

                                9.00

                                19.00

                                1.00



                                Tensile Data

                                Mechanical Property Requirements

                                Ultimate Tensile

                                Yield Strength (0.2% OS)

                                Elong. in 4D %

                                R/A

                                Hardness

                                Min

                                125 Ksi

                                45.0 KSi

                                30

                                Max

                                Min

                                862 Mpa

                                310 MPa

                                Max


                                Specifications

                                Form

                                Standard

                                Metal Type

                                UNS R30605

                                Bar

                                AMS 5759 ASTM F90 GE B50T26A

                                Cold Worked Bars

                                MCI 1031 GPS 2051

                                Wire

                                Sheet

                                AMS 5537

                                Plate

                                AMS 5537

                                Foil

                                AMS 5537

                                Fitting

                                 

                                Welding Tube

                                GE B50T26A

                                Forging

                                AMS 5759

                                Weld Wire

                                AMS 5759

                                Weld Electrode

                                 

                                Din

                                2.4964

                                 


                                Hardenability

                                HAYNES 25 (L605) hardness is typically 250 BHN and never higher than 275 BHN by specification. Not significantly hardenable. Does not respond to customary aging treatments, but strain aging at relatively low temperatures (700-1100° F) can improve creep and rupture strength when the alloy is in service at temperatures under 1300° F. Also, tensile and creep strength can be improved by cold working. HAYNES 25 (L605) is an austenitic alloy.


                                 

                                Performance Profile

                                Alloy L605 is the strongest of the formable cobalt alloys, useful for continuous service to 1800°F. Because of long and widespread use, this alloy has been the subject of many investigations to determine its properties over a wide range of conditions, thus making it an unusually well characterized material. Alloy L-605 is also known as alloy 25.

                                When exposed for prolonged periods at intermediate temperatures, alloy L-605 exhibits a loss of room temperature ductility in much the same fashion as other super alloys, such as X or 625.

                                Alloy L-605 is welded using gas tungsten arc, gas metal arc, shielded metal arc, electron beam and resistance welding. Submerged arc welding is not recommended. Use good joint fit-up, minimum restraint, low inter-pass temperature and cool rapidly from welding. For maximum ductility fabricated components should be annealed 2150-2250°F, rapid cool.


                                Corrosion Resistance

                                HAYNES 25 (L605) resistance to high temperature oxidation and carburization is good. The alloy, while not primarily intended for aqueous corrosion, is also resistant to corrosion by acids such as hydrochloric and nitric acid, as well as being resistant to wet chlorine solutions.

                                Density: 0.330 lbs./cubic inch


                                Machinability

                                RATING: 15% of B-1112
                                TYPICAL STOCK REMOVAL RATE: 25 surface feet/minute with high speed tools, 70 surface feet/minute with carbide.

                                COMMENTS:
                                All customary machining operations are easily performed. M40 series high-speed tools are customarily used. M2 alloy and carbide tools have limited application and are not recom¬mended for end milling, drilling or tapping. Sulphur chlorinated, water-based cutting fluids work successfully when machining this alloy


                                COLD-WORKED PROPERTIES

                                Cobalt Alloy L605 has excellent strength and hardness characteristics in the cold-worked condition. These high property levels are also evident at elevated temperature, making Alloy L605 quite suitable for applications such as ball bearings and bearing races. A modest additional increase in hardness and strength can be achieved through aging of the cold-worked material.

                                TYPICAL TENSILE PROPERTIES, COLD-WORKED SHEET*
                                Cold
                                Reduction
                                Test
                                Temperature
                                Ultimate
                                Tensile Strengtd
                                0.2% Yield
                                Strengtd
                                Elongation
                                In 2 in. (51mm)
                                %
                                °F °C Ksi MPa Ksi MPa
                                10

                                70
                                1000
                                1200
                                1400
                                1600
                                1800

                                20
                                540
                                650
                                760
                                870
                                980

                                155
                                114
                                115
                                87
                                62
                                39

                                1070
                                785
                                795
                                600
                                425
                                270

                                105
                                78
                                80
                                67
                                47
                                27

                                725
                                540
                                550
                                460
                                325
                                185

                                41
                                48
                                37
                                8
                                13
                                15

                                15

                                70
                                1000
                                1200
                                1400
                                1600
                                1800

                                20
                                540
                                650
                                760
                                870
                                980

                                166
                                134
                                129
                                104
                                70
                                40

                                1145
                                925
                                890
                                715
                                485
                                275

                                124
                                107
                                111
                                86
                                52
                                30

                                855
                                740
                                765
                                595
                                360
                                205

                                30
                                29
                                15
                                5
                                9
                                5

                                20

                                70
                                1000
                                1200
                                1400
                                1800

                                20
                                540
                                650
                                760
                                980

                                183
                                156
                                137
                                107
                                41

                                1260
                                1075
                                945
                                740
                                285

                                141
                                133
                                120
                                96
                                30

                                970
                                915
                                825
                                660
                                205

                                19
                                18
                                2
                                3
                                4

                                *Limited data for cold-rolled 0.050-inch (1.3 mm) thick sheet

                                 

                                 

                                TYPICAL HARDNESS AT 70°F (20°C), COLD-WORKED AND AGED SHEET*
                                Cold-Work
                                %
                                Hardness, Rockwell C, After Indicated Level of
                                Cold Work and Subsequent Aging Treatment
                                None 900°F(480°C)
                                5 Hours
                                1100°F (595°C)
                                5 Hours
                                None
                                5
                                10
                                15
                                20
                                24
                                31
                                37
                                40
                                44
                                25
                                33
                                39
                                44
                                44
                                25
                                31
                                39
                                43
                                47

                                *Limited data for cold-rolled 0.070-inch (1.8 mm) thick sheet.

                                 

                                 

                                TYPICAL TENSILE PROPETYPICAL TENSILE PROPERTIES, COLD-WORKED AND AGED SHEET*RTIES, COLD-WORKED SHEET*
                                Condition Test
                                Temperature
                                Ultimate
                                Tensile Strength
                                0.2% Yield
                                Strength
                                Elongation
                                In 2 in. (51mm)
                                %
                                °F °C Ksi MPa Ksi MPa
                                15% CW
                                + Age A

                                70
                                1200

                                20
                                650

                                168
                                128

                                1160
                                885

                                136
                                104

                                940
                                715

                                31
                                23

                                20% CW
                                + Age A

                                70
                                1000
                                1200
                                1400
                                1600
                                1800

                                20
                                540
                                650
                                760
                                870
                                980

                                181
                                151
                                144
                                108
                                74
                                43

                                1250
                                1040
                                995
                                745
                                510
                                295

                                152
                                129
                                128
                                97
                                59
                                33

                                1050
                                890
                                885
                                670
                                405
                                230

                                17
                                19
                                8
                                2
                                6
                                5

                                 

                                70
                                600
                                1000
                                1200
                                1400
                                1600
                                1800

                                20
                                315
                                540
                                650
                                760
                                870
                                980

                                191
                                165
                                149
                                140
                                116
                                71
                                42

                                1315
                                1140
                                1025
                                965
                                800
                                490
                                290

                                162
                                132
                                124
                                119
                                92
                                50
                                31

                                1115
                                910
                                855
                                820
                                635
                                345
                                215

                                19
                                28
                                23
                                13
                                7
                                9
                                12

                                *Limited data for cold-rolled 0.050-inch (1.3 mm) thick sheet.
                                Age A = 700°F (370°C)/1 hour
                                Age B = 1100°F (595°C)/2 hours

                                 


                                IMPACT STRENGTH PROPERTIES, PLATE.
                                Test
                                Temperature
                                Typical Charpy V-Notch
                                Impact Resistance
                                °F(°C) Ft.-lbs. Joules
                                -321 (-196)
                                -216 (-138)
                                -108 (-78)
                                -20 (-29)
                                Room
                                500 (260)
                                1000 (540)
                                1200 (650)
                                1400 (760)
                                1600 (870)
                                1800 (980)
                                109
                                134
                                156
                                179
                                193
                                219
                                201
                                170
                                143
                                120
                                106
                                148
                                182
                                212
                                243
                                262
                                297
                                273
                                230
                                194
                                163
                                144

                                THERMAL STABILITY

                                When exposed for prolonged periods at intermediate temperatures, Cobalt Alloy L605 exhibits a loss of room temperature ductility in much the same fashion as some other solid-solution-strengthened super alloys, such as HASTELLOY® ALLOY X OR INCONEL® ALLOY 625. This behavior occurs as a consequence of the precipitation of deleterious phases. In the case of Alloy L605, the phase in question is CO2W laves phase. HAYNES alloy 188 is significantly better in this regard than Alloy L605.

                                ROOM-TEMPERATURE PROPERTIES OF SHEET AFTER THERMAL EXPOSURE*
                                Exposure
                                Temperature
                                °F(°C)
                                Hours Ultimate
                                Tensile Strength
                                0.2% Yield
                                Strength
                                Elongation
                                %
                                Ksi MPa Ksi MPa
                                None 0 135.0 930 66.8 460 48.7
                                1200 (650) 500
                                1000
                                2500
                                123.6
                                140.0
                                130.7
                                850
                                965
                                900
                                70.3
                                92.3
                                95.1
                                485
                                635
                                655
                                39.2
                                24.8
                                12.0
                                1400 (760) 100 115.3 795 68.9 475 18.1
                                1600 (870) 100
                                500
                                1000
                                113.6
                                126.1
                                142.0
                                785
                                870
                                980
                                72.1
                                77.3
                                81.7
                                495
                                535
                                565
                                9.1
                                3.5
                                5.0

                                *Composite of multiple sheet lot tests.

                                 

                                 

                                TYPICAL PHYSICAL PROPERTIES
                                  Temp.,°F British
                                Units
                                Temp.,°C metric
                                Units
                                Density
                                Melting Range
                                Room 0.330 lb/in3 Room 1.93 G/cm3
                                2425-2570     1330-1410    
                                Electrical
                                Resistivity
                                Room
                                200
                                400
                                600
                                800
                                1000
                                1200
                                1400
                                1600
                                1800
                                34.9
                                35.9
                                37.6
                                38.5
                                39.1
                                40.4
                                41.8
                                42.3
                                40.6
                                37.7
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                µohm-in
                                Room
                                100
                                200
                                300
                                400
                                500
                                600
                                700
                                800
                                900
                                1000
                                88.6
                                91.8
                                95.6
                                97.6
                                98.5
                                100.8
                                104.3
                                106.6
                                107.8
                                101.1
                                95.0
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm
                                µohm-cm


                                Thermal
                                Conductivity
                                Room
                                200
                                400
                                600
                                800
                                1000
                                1200
                                1400
                                1600
                                1800
                                65
                                75
                                90
                                105
                                120
                                135
                                150
                                165
                                182
                                200
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                BTU-in/ft2 hr-°F
                                Room
                                100
                                200
                                300
                                400
                                500
                                600
                                700
                                800
                                900
                                1000
                                9.4
                                10.9
                                12.9
                                14.8
                                16.8
                                18.7
                                20.7
                                22.6
                                24.7
                                26.9
                                29.2
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K
                                W/m-K

                                TYPICAL PHYSICAL PROPERTIES (continued)
                                  Temp., ° F British Units Temp., ° C Metric Units
                                Mean Coefficient of
                                Thermal Expansion
                                70-200
                                70-400
                                70-600
                                70-800
                                70-1000
                                70-1200
                                70-1400
                                70-1600
                                70-1800
                                70-2000
                                6.8 microinches/in- ° F
                                7.2 microinches/in- ° F
                                7.6 microinches/in- ° F
                                7.8 microinches/in- ° F
                                8.0 microinches/in- ° F
                                8.2 microinches/in- ° F
                                8.6 microinches/in- ° F
                                9.1 microinches/in- ° F
                                9.4 microinches/in- ° F
                                9.8 microinches/in- ° F
                                25-100
                                25-200
                                25-300
                                25-400
                                25-500
                                25-600
                                25-700
                                25-800
                                25-900
                                25-1000
                                25-1100
                                12.3 µm/m- ° C
                                12.9 µm/m- ° C
                                13.6 µm/m- ° C
                                14.0 µm/m- ° C
                                14.3 µm/m- ° C
                                14.6 µm/m- ° C
                                15.1 µm/m- ° C
                                15.8µm/m- ° C
                                16.5 µm/m- ° C
                                17.0 µm/m- ° C
                                17.6 µm/m- ° C

                                 

                                 

                                DYNAMIC MODULUS OF ELASTICITY
                                Temp., ° F Dynamic
                                Modulus of
                                Elasticity,
                                10 6 psi
                                Temp., ° C Dynamic
                                Modulus of
                                Elasticity,
                                GPa
                                Room
                                200
                                400
                                600
                                800
                                1000
                                1200
                                1400
                                1600
                                1800
                                32.6
                                32.3
                                31.0
                                29.4
                                28.3
                                26.9
                                25.8
                                24.3
                                22.8
                                21.4
                                Room
                                100
                                200
                                300
                                400
                                500
                                600
                                700
                                800
                                900
                                1000
                                225
                                222
                                214
                                204
                                197
                                188
                                181
                                174
                                163
                                154
                                146

                                METAL-TO-METAL GALLING RESISTANCE

                                Cobalt Alloy L605 exhibits excellent resistance to metal galling. Wear results shown below were generated for standard matching material room-temperature pin on disc tests. Wear depths are given as a function of applied load. The results indicate that Alloy L605 is superior in galling resistance to many materials, and is surpassed only by ULTIMETTM alloy and HAYNES alloy 6B. Both of these materials were specifically designed to have excellent wear resistance.

                                  Room-Temperature Wear Depth For Various Applied Loads
                                3,000 lbs. (1.365 Kg) 6,000 lbs. (2,725 Kg) 9,000 lbs. (4,090 Kg)
                                Material mils µm mils µm mils µm
                                alloy 6B 0.02 0.6 0.03 0.7 0.02 0.5
                                ULTIMET alloy 0.11 2.9 0.11 2.7 0.08 2.0
                                Alloy L605 0.23 5.9 0.17 4.2 0.17 4.2
                                Alloy 188 1.54 39.2 3.83 97.3 3.65 92.6
                                HR-160™ alloy 1.73 43.9 4.33 109.9 3.81 96.8
                                214™ alloy 2.32 59.0 3.96 100.5 5.55 141.0
                                556™ alloy 3.72 94.4 5.02 127.6 5.48 139.3
                                230™ alloy 4.44 112.7 7.71 195.8 8.48 215.5
                                HR-120™ alloy 6.15 156.2 7.05 179.0 10.01 254.2

                                 

                                HIGH-TEMPERATURE HARDNESS PROPERTIES

                                The following are results from standard vacuum furnace hot hardness tests. Values are given in originally measured DPC (Vickers) units and conversions to Rockwell C/B scale in parentheses.

                                 

                                  Vickers Diamond Pyramid Hardness (Rockwell C/B Hardness)
                                70°F (20°C) 800°F (425°C) 1000°F (540°C) 1200°F (650°C) 1400°F ( 760°C)
                                Solution Treated 251 (RC22) 171 (RB87) 160 (RB83) 150 (RB80) 134 (RB74)
                                15% Cold Work 348 (RC22) 254 (RC23) 234 (RC97) 218 (RC95) --
                                20% Cold Work 401 (RC35) 318 (RC32) 284 (RC27) 268 (RC25) --
                                25% Cold Work 482 (RC48) 318 (RC32) 300 (RC30) 286 (RC28) --

                                AQUEOUS CORROSION RESISTANCE

                                HAYNES 25 (L605) was not designed for resistance to corrosive aqueous media. Representative average corrosion data are given for comparison. For applications requiring corrosion resistance in aqueous environments, ULTIMET alloy and HASTELLOY® corrosion-resistant alloys should be considered.

                                  Average corrosion Rate, mils per year (mm per year)
                                1% HCl (Boiling) 10% H2SO4 (Boiling) 65% HNO3(Boiling)
                                C-22™ alloy 3 (0.08) 12 (0.30) 134 (3.40)
                                Alloy L605 226 (5.74) 131 (3.33) 31 (0.79)
                                Type 316L 524 (13.31) 1868 (47.45) 9 (0.23)

                                OXIDATION RESISTANCE

                                Cobalt Alloy L605 exhibits good resistance to both air and combustion gas oxidizing environments, and can be used for long-term continuous exposure at temperatures up to 1800°F (980°C). For exposures of short duration, Alloy L605 can be used at higher temperatures.

                                  COMPARATIVE BURNER RIG OXIDATION RESISTANCE 1000-HOUR EXPOSURE AT 1800°F (980°C)
                                Metal
                                Loss
                                Average
                                Metal Affected
                                Maximum
                                Metal Affected
                                Material mils µm mils µm mils µm
                                230 alloy 0.8 20 2.8 71 3.5 89
                                HAYNES alloy 188 1.1 28 3.5 89 4.2 107
                                HASTELLOY® alloy X 2.7 69 5.6 142 6.4 153
                                Alloy 625 4.9 124 7.1 180 7.6 193
                                Alloy L605 6.2 157 8.3 211 8.7 221
                                Alloy 617 2.7 69 9.8 249 10.7 272
                                Alloy 800H 12.3 312 14.5 368 15.3 389
                                Type 310 Stainless Steel 13.7 348 16.2 411 16.5 419
                                Alloy 600 12.3 312 14.4 366 17.8 452

                                Oxidation Test Parameters

                                Burner rig oxidation tests were conducted by exposing samples 3/8 in. x 2.5 in. x thickness (9 mm x 64 mm x thickness), in a rotating holder, to products of combustion of No. 2 fuel oil burned at a ratio of air to fuel of about 50:1. (Gas velocity was about 0.3 mach). Samples were automatically removed from the gas stream every 30 minutes and fan-cooled to near ambient temperature and then reinserted into the flame tunnel.

                                  COMPARATIVE OXIDATION RESISTANCE IN FLOWING AIR*
                                1800°F (980°C) 2000°F (1095°C) 2100°F (1150°C)
                                Material mils µm mils µm mils µm
                                HAYNES alloy 188 0.6 15 1.3 33 8.0 203
                                230 Alloy 0.7 18 1.3 33 3.4 86
                                Alloy L605 0.7 18 10.2 259 19.2 488
                                Alloy 625 0.7 18 4.8 122 18.2 462
                                Alloy X 0.9 23 2.7 69 5.8 147
                                Alloy 617 1.3 33 1.8 46 3.4 86

                                *Flowing air at a velocity of 7.0 ft./min. (213.4 cm/min.) past the samples. Samples cycled to room temperature once a week.
                                **Metal Loss + Average Internal Penetration.

                                 

                                Machining

                                Machinability Ratings

                                 

                                The alloys described here work harden rapidly during machining and require more power to cut than do the plain carbon steels. The metal is ‘gummy,’ with chips that tend to be stringy and tough. Machine tools should be rigid and used to no more than 75% of their rated capacity. Both work piece and tool should be held rigidly; tool overhang should be minimized. Rigidity is particularly important when machining titanium, as titanium has a much lower modulus of elasticity than either steel or nickel alloys. Slender work pieces of titanium tend to deflect under tool pressures causing chatter, tool rubbing and tolerance problems.
                                Make sure that tools are always sharp. Change to sharpened tools at regular intervals rather than out of necessity. Titanium chips in particular tend to gall and weld to the tool cutting edges, speeding up tool wear and failure. Remember- cutting edges, particularly throw-away inserts, are expendable. Don't trade dollars in machine time for pennies in tool cost.

                                Feed rate should be high enough to ensure that the tool cutting edge is getting under the previous cut thus avoiding work-hardened zones. Slow speeds are generally required with heavy cuts. Sulfur chlorinated petroleum oil lubricants are suggested for all alloys but titanium. Such lubricants may be thinned with paraffin oil for finish cuts at higher speeds. The tool should not ride on the work piece as this will work harden the material and result in early tool dulling or breakage. Use an air jet directed on the tool when dry cutting, to significantly increase tool life.

                                Lubricants or cutting fluids for titanium should be carefully selected. Do not use fluids containing chlorine or other halogens (fluorine, bromine or iodine), in order to avoid risk of corrosion problems. The following speeds are for single point turning operations using high speed steel tools. This information is provided as a guide to relative machinability, higher speeds are used with carbide tooling.

                                Material Speed
                                Surface ft/mm
                                Speed
                                %B1112
                                AISI B1112 165 100
                                Rne 41 12 7
                                25 (L-605) 15 9
                                188 15 9
                                N-155 20 12
                                Waspaloy 20 12
                                718 20 12
                                825 20 12
                                X 20 12
                                RA333 20-25 12-15
                                A-286 30 18
                                RA330 30-45 18-27
                                HR-120TM 30-50 18-30
                                Ti 6A1-4V
                                - soln annealed
                                - aged

                                30-40
                                15-45

                                18-30
                                9-27
                                RA 353 MA~ 40-60 25-35
                                20Cb-3~ 65 40
                                AL6xN~ 65 40
                                RA309 70 42
                                RA310 70 42
                                304 75 45
                                321 75 45
                                446 75 45
                                Greek Ascoloy Annealed 90 55
                                Hardened Rc35 50 30
                                303 100 60
                                416 145 88
                                17-4 PH
                                - soln treated
                                - aged Hi 025

                                75
                                60

                                45
                                36

                                 

                                RA330 TM and RA333 TM are Registered Trademarks of Rolled Alloys
                                353 MA TM is a Registered Trademark of Avesta Sheffield
                                20Cb-3 TM is a Registered Trademark of Carpenter Technology
                                HR-120TM is a Trademark of Haynes International
                                INCONEL TM is a Trademark of Special Metals



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