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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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 |
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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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