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Stainless Steel and Alloy Specs Sheet

Material UNS/SPEC # Description/Applications Basic Composition % Forms
ALLOY 200 UNS N02200
ASTM B-725, B-730, B-160
• Commercially pure wrought nickel.
• Good mechanical properties.
• Excellent resistance to many corrosives.
• Used in food processing, caustic handling, aerospace components.
99.0/100.0 Ni
0.00/0.15 C
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ALLOY 201 UNS N02201
ASTM B-725, B-730, B-160
• Commercially pure wrought nickel with low carbon to prevent embrittlement at temperatures over 600°F.
• Softer than Alloy 200, suitable for cold forming.
• Excellent resistance to many corrosives.
• Used in food processing, caustic handling, aerospace components.
99.0/100.0 Ni
0.00/0.20 C
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ALLOY 400 UNS N04400
ASTM B-725, B-730, B-164
• High strength and toughness over wide temperature range.
• Excellent resistance to reducing corrosive environments.
• Good weldability.
• Used in heat exchangers, food processing, petroleum refinery and chemical processing industry applications.
63.0/70.0 Ni
30.0/37.0 Cu
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ALLOY 600 UNS N06600
ASTM B-516, B-517, B-166
ASME SB-516, SB-517, SB-166
• Resistant to oxidizing and reducing environments.
• For severe corrosion environments at elevated temperatures.
• Steam generators, food processing, chemical processing, electronic components.
72.0 Min Ni
14.0/17.0 Cr
6.0/10.0 Fe
0.15 Max C
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ALLOY 625 UNS N06625
ASTM B-704, B-705, B-443, B-446
• High strength and toughness from cryogenic temperatures to 1800°F (1000°C).
• Good oxidation resistance, exceptional fatigue strength.
• Good resistance to many corrosives.
58.0 Min Ni
20.0/23.0 Cr
8.0/10.0 Mo
3.15/4.15 Cb+Ta
PIPE – TUBE
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ALLOY 800 UNS N08800
ASTM B-514, B-515, B-409
ASME SB-514, SB-515, SB-409
• Strong and resistant to oxidation and carburization.
• Resists sulfidation, internal oxidation, scaling and corrosion.
• Used in heat exchangers, process piping, steam generators, heating element cladding.
30.0/35.0 Ni
19.0/23.0 Cr
0.15/0.6 Al
0.15/0.6 Ti
0.10 Max C
Bal Fe
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ALLOY 825 UNS N08825
ASTM B-704, B-705
• Resists pitting and intergranular corrosion.
• Excellent corrosion resistance in a wide variety of environments and applications.
• Applications include nuclear industry, chemical processing, hydroflouric acid production, pollution control systems.
38.0/46.0 Ni
19.5/23.5 Cr
2.5/3.5 Mo
1.5/3.0 Cu
0.6/1.2 Ti
0.2 Max Al
Bal Fe
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ALLOY C-276 UNS N10276
ASTM B-626, B-619, B-574
ASME SB-626, SB-619, SB-574
• Outstanding corrosion resistance in a reducing and oxidizing environments.
• Excellent resistance to pitting and stress-corrosion cracking.
• Maintains corrosion resistance in welded joints.
• Applications in chemical processing, pollution control, pulp and paper and other severe environments/conditions.
15.0/17.0 Mo
14.5/16.5 Cr
4.0/7.0 Fe
3.0/4.5 W
0.00/0.02 Max C
Bal Ni
PIPE – TUBE
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ALLOY 20 UNS N08020
ASTM B-464, B-468, B-474, B-473, B-463
ASME SB-464, SB-468, SB-474, SB-473, SB-463
• Superior resistance to stress-corrosion cracking in boiling 20 to 40% sulfuric acid.
• Excellent general corrosion resistance to sulfuric acid.
• Excellent resistance to chloride stress corrosion cracking.
• Excellent mechanical properties and fabricability.
• Minimal carbide precipitation during welding.
• Used in chemical industries, food and dye production, heat exchangers, SO2 scrubbers and other severe environments.
32.5/35.0 Ni
19.0/21.0 Cr
2.0/3.0 Mo
3.0/4.0 Cu
1.0 Max Cb
0.06 Max C
Bal Fe
PIPE – TUBE
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ALLOY 904L UNS N08904
ASTM B-674, B-673
ASME SB-464, SB-674, SB-673
• Resistant to corrosion in a wide range of both oxidizing and reducing environments.
• May be subject to chloride stress corrosion cracking at higher temperatures.
• Resistant to pitting and crevice corrosion, as well as general corrosion in reducing acids.
• Piping systems, pollution control equipment, heat exchangers, bleaching systems.
23.0/28.0 Ni
19.0/23.0 Cr
4.0/5.0 Mo
1.0/2.0 Cu
0.02 Max C
Bal Fe
PIPE
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ALLOY 304 UNS S30400
ASTM A-249, A-269, A-270, A-312, A-358, A-409, A-479, A-240
ASME SA-249, SA-269, SA-270, SA-312, SA-358, SA-409, SA-479, SA-240
• An austenitic chromium-nickel stainless steel.
• Non-hardenable except by cold working.
• Non-magnetic except when cold worked.
• General purpose corrosion resistance.
• Food and beverage industries, chemical processing, petrochemical.
• May be susceptible to chloride stress corrosion cracking.
• Hydraulic lines, heat exchangers, feedwater heaters, U-bent and straight condenser tubes.
18.0/20.0 Cr
8.0/11.0 Ni
0.08 Max C
Bal Fe
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ALLOY 304L UNS S30403
ASTM A-249, A-269, A-270, A-312, A-358, A-409, A-479, A-240
ASME SA-249, SA-269, SA-270, SA-312, SA-358, SA-409, SA-479, SA-240
• An austenitic chromium-nickel stainless steel adaptable for brazing or welding, where short-time exposure to high temperatures is encountered.
• Non-hardenable except by cold working.
• May be susceptible to chloride stress corrosion cracking.
• General purpose corrosion resistance.
• Used where field welding is employed.
• Applications include sanitary, dairy, food processing, evaporators, heat exchangers, feedwater heaters.
18.0/20.0 Cr
8.0/13.0 Ni
0.035 Max C
Bal Fe
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ALLOY 316 UNS S31600
ASTM A-249, A-269, A-270, A-312, A-358, A-409, A-479, A-240
ASME SA-249, SA-269, SA-270, SA-312, SA-358, SA-409, SA-479, SA-240
• An austenitic chromium-nickel stainless steel with improved corrosion and heat resistance.
• May be susceptible to chloride stress corrosion cracking.
• Non-hardenable, non-magnetic in the annealed condition and slightly magnetic when cold worked.
• Improved corrosion resistance to chlorides.
• Application in chemical process, rubber, plastics, pulp and paper, pharmaceutical and textile industries, heat exchangers, condensers, evaporators.
16.0/18.0 Cr
10.0/14.0 Ni
2.0/3.0 Mo
0.08 Max C
Bal Fe
PIPE – TUBE
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ALLOY 316L UNS S31603
ASTM A-249, A-269, A-270, A-312, A-358, A-409, A-479, A-240
ASME SA-249, SA-269, SA-270, SA-312, SA-358, SA-409, SA-479, SA-240
• An austenitic chromium-nickel stainless steel with improved corrosion/heat resistance, adaptable for welding, brazing and where other short-time, high temperature conditions are encountered.
• May be susceptible to chloride stress corrosion cracking.
• Non-hardenable, non-magnetic in the annealed condition and slightly magnetic when cold worked.
• Improved corrosion resistance to chlorides.
• Application in nuclear, chemical, rubber, plastics, pulp and paper, pharmaceutical and textile industries
• Heat exchangers, condensers, evaporators.
16.0/18.0 Cr
10.0/14.0 Ni
2.0/3.0 Mo
0.035 Max C
Bal Fe
PIPE – TUBE
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ALLOY 317 UNS S31700
ASTM A-249, A-269, A-312, A-409, A-479, A-240
ASME SA-249, SA-269, SA-312, SA-409, SA-479, SA-240
• An austenitic chromium-nickel molybdenum steel with improved chloride pitting resistance over Type 316.
• May be susceptible to chloride stress corrosion cracking.
• Non-hardenable, non-magnetic in the annealed condition and slightly magnetic when cold worked.
• Used in chemical, petroleum, pulp and paper industries, heat exchangers, condensers, evaporators.
18.0/20.0 Cr
11.0/14.0 Ni
3.0/4.0 Mo
0.08 Max C
Bal Fe
PIPE – TUBE
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ALLOY 317L UNS S31703
ASTM A-249, A-312, A-479, A-240
ASME SA-249, SA-312, SA-479, SA-240
• An austenitic chromium-nickel molybdenum steel with improved chloride pitting resistance over Type 316.
• May be susceptible to chloride stress corrosion cracking.
• Used for brazing or welding, and other short-time exposure to high temperatures.
18.0/20.0 Cr
11.0/14.0 Ni
3.0/4.0 Mo
0.035 Max C
Bal Fe
PIPE – TUBE
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ALLOY 321 UNS S32100
ASTM A-240, A-249, A-269, A-479, A-312, A-358, A-409
ASME SA-240, SA-249, SA-269, SA-479, SA-312, SA-358, SA-409
• Titanium stabilized 18-8 stainless steel.
• Improved intergranular corrosion resistance.
• Excellent for high temperature service in carbide precipitation range.
• Excellent weldability in field.
• May be susceptible to chloride stress corrosion cracking.
• Used for exhaust manifolds, expansion joints, high temperature chemical process heat exchanger tubes, recuperator tubes.
17.0/20.0 Cr
9.0/13.0 Ni
0.08 Max C
5XC Min Ti
0.60 Max Ti
Bal Fe
PIPE – TUBE
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ALLOY 321H UNS S32109
ASTM A-249, A-240, A-312, A-479
ASME SA-249, SA-312, SA-479, SA-240
• High Carbon Type 321 for better high temperature creep properties and to meet requirements of ASME Section VII, Table UHA-21, Footnote 8.
• Corrosion resistance same as Type 321.
• May be susceptible to chloride stress corrosion cracking.
• Good weldability in field.
• Used in applications where temperatures exceed 1000°F.
17.0/20.0 Cr
9.0/13.0 Ni
0.04/0.10 C
4 x C Min Ti
0.60 Max Ti
Bal Fe
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ALLOY 309S UNS S30908
ASTM A-249, A-312, A-479, A-358, A-409, A-554, A-240
ASME SA-249, SA-312, SA-358, SA-409, SA-479, SA-240
• Superior heat resisting austenitic stainless steel.
• Good for continuous exposure to 2000°F and intermittent service to 1800°F.
• Slightly better corrosion resistance than Type 304 stainless steel.
• May be susceptible to chloride stress corrosion cracking.
• Better temperature creep strength then the 18-8 austenitic stainless steels.
• Resistant to corrosive action of high sulfur flue gases providing they are oxidizing, but poor in reducing gases like H2S.
• Used for heat exchanger tubes in refineries, petrochemical, heat recuperators, pulp and paper mills, gas carburizing and bright annealing/hardening service.
22.0/24.0 Cr
12.0/15.0 Ni
0.08 Max C
Bal Fe
PIPE – TUBE
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ALLOY 310S UNS S31008
AMS 5577
ASTM A-240, A-249, A-312, A-358, A-409, A-479, A-554
ASME SA-240, SA-249, SA-312, SA-358, SA-409, SA-479
• Austenitic stainless steel with excellent high temperature oxidation resistance.
• Good for continuous exposure to 2100°F and intermittent service to 1900°F.
• Better elevated temperature creep strength then the 18-8 grades.
• Good resistance to both carburizing and reducing environments.
• General corrosion resistance better than Types 304 and 309.
• May be susceptible to chloride stress corrosion cracking.
• Used for heat exchanger and heat recuperator tubing, molten salt applications, sulfur bearing gas atmospheres.
24.0/26.0 Cr
19.0/22.0 Ni
0.08 Max C
Bal Fe
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ALLOY 60I UNS N06001
ASME Code Case 1500
• Excellent high temperature properties.
• Resistant to oxidizing and carburizing atmospheres.
• Heat exchangers, thermocouple tubes, aircraft engine components.
60.5 Ni
23.0 Cr
14.0 Fe
1.4 Al
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ALLOY 2205 UNS S31803
ASTM A-789, A-790
ASME SA-789, A-790
• Good strength, toughness, and corrosion resistance.
• Resists oxidizing mineral acids and most organic acids, in addition to reducing acids and chloride environments.
• Potential applications include production/collection tubing/piping for oil/gas production, condensers and reboilers for oil refining/petrochemical industries; feedwater heaters and heat exchangers for power and chemical industries.
21.0/23.0 Cr
4.5/6.5 Ni
2.5/3.5 Mo
0.030 Max C
0.08/0.20 N
Bal Fe
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