Nickel Alloys
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RA330®
The workhorse of austenitic heat resistant alloys. Good strength, carburization and oxidation resistance up to 2100°F.
Cr Ni Si C Mn P S Cu Fe MIN 18.00 34.00 1.00 -- -- -- -- -- Balance MAX 20.00 37.00 1.50 0.08 2.00 0.03 0.03 1.00 -
RA333®
A nickel base superalloy with excellent carburization, oxidation, and hot corrosion resistance. It has high creep rupture strength with exceptional ability to withstand repeated thermal shock.
Ni Cr Mo Co W Si Mn C Fe MIN 44.00 24.00 2.50 2.50 2.50 0.75 -- -- MAX 47.00 27.00 4.00 4.00 4.00 1.50 2.00 0.08 Balance -
RA 602 CA®
One of the most oxidation resistant high strength, heat resistant nickel alloys available. Useful through 2200°F.
Cr Ni C Al Ti Y Zr Mn Si Cu Fe MIN 24.00 0.15 1.80 0.10 0.05 0.01 -- -- -- 8.00 MAX 26.00 Balance 0.25 2.40 0.20 0.12 0.10 0.15 0.50 0.10 11.00 -
600
A nickel-chromium alloy with good carburization and oxidation resistance through 2000°F.
Ni Cr C Mn Cu Si S Fe MIN 72.00 14.00 -- -- -- -- -- 6.00 MAX 17.00 0.15 1.00 0.50 0.50 0.015 10.00 *ASTM specification 0.20 max C.
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601
A nickel base alloy with high chromium and an aluminum addition. Outstanding oxidation resistance to 2200°F, good strength and carburization resistance.
Ni Cr Al C Mn Cu Si S Fe MIN 58.00 21.00 1.00 -- -- -- -- -- -- MAX 63.00 25.00 1.70 0.10 1.00 1.00 0.50 0.015 Balance *ASTM specification 0.20 max C.
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625
High creep-rupture strength, oxidation resistant to 1800°F (982°C). Excellent resistance to hot seawater, scrubber environments and reducing acids.
Cr Ni Mo Co Cb+Ta Al Ti C Fe Mn Si P S MIN 20.0 - 8.0 - 3.15 - - - - - - - - MAX 23.0 Balance 10.0 1.0 4.15 0.4 0.4 0.1 5.0 0.5 0.5 0.015 0.015 -
718
Nickel alloy precipitation hardened by gamma prime and double prime. Readily fabricated, weldable even in the hardened condition. Used for gas turbine components to 1200°F, as well as for cryogenic equipment.
Ni+Co Cr Cb+Ta Mo Ti Al Co C Mn Si P S B Cu Fe MIN 50.00 17.00 4.75 2.80 0.65 0.20 -- -- -- -- -- -- -- -- -- MAX 55.00 21.00 5.50 3.30 1.15 0.80 1.00 0.08 0.35 0.35 0.015 0.015 0.006 0.30 Balance -
718 NACE
Age hardened nickel alloy commonly used in oil and gas applications for its high strength and moderate corrosion resistance. Meets API 6A.
Ni Cr Mo Mn Cu Si C S P Co Cb+Ta Pb Se Bi Mg Ti Al Fe MIN 50 17 2.8 - - - - - - - 4.87 - - - - 0.8 0.4 - MAX 55 21 3.3 0.35 0.23 0.35 0.045 0.01 0.01 1.0 5.2 1000
ppm0.0005
ppm50
ppm0.0006
ppm1.15 0.6 Balance -
X
Good strength and ease of fabrication, with excellent oxidation resistance through 2000°F. Widely used for aircraft, marine and industrial gas turbine combustors.
Cr Mo Co W Al Ti B C Fe Mn Si P S Cu Ni MIN 20.5 8.0 0.5 0.2 - - - 0.05 17.0 - - - - - - MAX 23.0 10.0 2.5 1.0 0.5 0.15 0.01 0.15 20.0 1.0 1.0 0.04 0.03 0.5 Balance -
INVAR 36
Low expansion alloy used for molds and dies to form composites.
Ni Fe Mo C Cu Mn Si P S Cr MIN 35.0 - - - - - - - - - MAX 37.0 Balance 0.5 0.1 0.5 0.6 0.35 0.025 0.025 0.5 -
AL-6XN®
A high molybdenum superaustenitic with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. Suitable for use in pulp mill bleach plants, seawater heat exchangers and chemical process equipment.
Cr Ni Mo C N Mn Si P S Cu Fe MIN 20.00 23.50 6.00 -- 0.18 -- -- -- -- -- MAX 22.00 25.50 7.00 0.03 0.25 2.00 1.00 0.04 0.03 0.75 Balance -
X-750
Alloy X-750 is a nickel chromium alloy similar to Alloy 600 but made precipitation hardenable by additions of aluminum and titanium.
Ni Cr C Mn Cu Si S Fe MIN 70.00 14.00 -- -- -- -- -- 5.00 MAX -- 17.00 0.08 1.00 0.50 0.50 0.01 9.00 -
800H/AT
High strength austenitic heat resistant alloy for ASME code applications to 1650°F.
Cr Ni Mn Si Al Ti Al +Ti C Cu P S Fe MIN 19.0 30.0 - - 0.15 0.15 0.85 0.06 - - - - MAX 23.0 35.0 1.5 1.0 0.6 0.6 1.2 0.1 0.75 0.045 0.015 39.5 -
Alloy 20
The alloy designated specifically to withstand sulfuric acid. Practical immunity to chloride stress corrosion cracking. Stabilized to prevent intergranular corrosion as welded. Resistant to polythionic acid SCC.
Ni Cr Mo Mn Cu Si C S P Cb+Ta Fe MIN 32.5 19.0 2.0 - 3.0 - - - - 8.0 x C 1.0 - MAX 35.0 21.0 3.0 2.0 4.0 1.0 0.06 0.035 0.035 - Balance -
230®
High strength nickel based alloy used for land based gas turbines.
Ni Cr W Mo Co Al La Mn C Si Ph S B Ti Cu Fe MIN 47.00 20.00 13.00 1.00 - 0.20 0.005 0.30 0.05 0.25 - - - - - - MAX 65.00 24.00 15.00 3.00 5.00 0.50 0.005 1.00 0.15 0.75 0.03 0.015 0.015 0.10 0.50 3.00 -
W
Alloy W is a solid solution strengthened nickel superalloy developed primarily as a filler metal for welding dissimilar alloys, AWS ERNiMo-3
Cr Ni+Co Mo Co* V C Fe Mn Si P S MIN 4.0 -- 23.0 -- -- -- 4.0 -- -- -- -- MAX 6.0 Reste 26.0 2.5 0.6 0.12 7.0 1.0 1.0 0.04 0.03
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RA330®
The workhorse of austenitic heat resistant alloys. Good strength, carburization and oxidation resistance up to 2100°F.
Cr Ni Si C Mn P S Cu Fe MIN 18.00 34.00 1.00 -- -- -- -- -- Balance MAX 20.00 37.00 1.50 0.08 2.00 0.03 0.03 1.00 -
RA333®
A nickel base superalloy with excellent carburization, oxidation, and hot corrosion resistance. It has high creep rupture strength with exceptional ability to withstand repeated thermal shock.
Ni Cr Mo Co W Si Mn C Fe MIN 44.00 24.00 2.50 2.50 2.50 0.75 -- -- MAX 47.00 27.00 4.00 4.00 4.00 1.50 2.00 0.08 Balance -
RA 602 CA®
One of the most oxidation resistant high strength, heat resistant nickel alloys available. Useful through 2200°F.
Cr Ni C Al Ti Y Zr Mn Si Cu Fe MIN 24.00 0.15 1.80 0.10 0.05 0.01 -- -- -- 8.00 MAX 26.00 Balance 0.25 2.40 0.20 0.12 0.10 0.15 0.50 0.10 11.00 -
600
A nickel-chromium alloy with good carburization and oxidation resistance through 2000°F.
Ni Cr C Mn Cu Si S Fe MIN 72.00 14.00 -- -- -- -- -- 6.00 MAX 17.00 0.15 1.00 0.50 0.50 0.015 10.00 *ASTM specification 0.20 max C.
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601
A nickel base alloy with high chromium and an aluminum addition. Outstanding oxidation resistance to 2200°F, good strength and carburization resistance.
Ni Cr Al C Mn Cu Si S Fe MIN 58.00 21.00 1.00 -- -- -- -- -- -- MAX 63.00 25.00 1.70 0.10 1.00 1.00 0.50 0.015 Balance *ASTM specification 0.20 max C.
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625
High creep-rupture strength, oxidation resistant to 1800°F (982°C). Excellent resistance to hot seawater, scrubber environments and reducing acids.
Cr Ni Mo Co Cb+Ta Al Ti C Fe Mn Si P S MIN 20.0 - 8.0 - 3.15 - - - - - - - - MAX 23.0 Balance 10.0 1.0 4.15 0.4 0.4 0.1 5.0 0.5 0.5 0.015 0.015 -
718
Nickel alloy precipitation hardened by gamma prime and double prime. Readily fabricated, weldable even in the hardened condition. Used for gas turbine components to 1200°F, as well as for cryogenic equipment.
Ni+Co Cr Cb+Ta Mo Ti Al Co C Mn Si P S B Cu Fe MIN 50.00 17.00 4.75 2.80 0.65 0.20 -- -- -- -- -- -- -- -- -- MAX 55.00 21.00 5.50 3.30 1.15 0.80 1.00 0.08 0.35 0.35 0.015 0.015 0.006 0.30 Balance -
718 NACE
Age hardened nickel alloy commonly used in oil and gas applications for its high strength and moderate corrosion resistance. Meets API 6A.
Ni Cr Mo Mn Cu Si C S P Co Cb+Ta Pb Se Bi Mg Ti Al Fe MIN 50 17 2.8 - - - - - - - 4.87 - - - - 0.8 0.4 - MAX 55 21 3.3 0.35 0.23 0.35 0.045 0.01 0.01 1.0 5.2 1000
ppm0.0005
ppm50
ppm0.0006
ppm1.15 0.6 Balance -
X
Good strength and ease of fabrication, with excellent oxidation resistance through 2000°F. Widely used for aircraft, marine and industrial gas turbine combustors.
Cr Mo Co W Al Ti B C Fe Mn Si P S Cu Ni MIN 20.5 8.0 0.5 0.2 - - - 0.05 17.0 - - - - - - MAX 23.0 10.0 2.5 1.0 0.5 0.15 0.01 0.15 20.0 1.0 1.0 0.04 0.03 0.5 Balance -
INVAR 36
Low expansion alloy used for molds and dies to form composites.
Ni Fe Mo C Cu Mn Si P S Cr MIN 35.0 - - - - - - - - - MAX 37.0 Balance 0.5 0.1 0.5 0.6 0.35 0.025 0.025 0.5 -
AL-6XN®
A high molybdenum superaustenitic with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. Suitable for use in pulp mill bleach plants, seawater heat exchangers and chemical process equipment.
Cr Ni Mo C N Mn Si P S Cu Fe MIN 20.00 23.50 6.00 -- 0.18 -- -- -- -- -- MAX 22.00 25.50 7.00 0.03 0.25 2.00 1.00 0.04 0.03 0.75 Balance -
X-750
Alloy X-750 is a nickel chromium alloy similar to Alloy 600 but made precipitation hardenable by additions of aluminum and titanium.
Ni Cr C Mn Cu Si S Fe MIN 70.00 14.00 -- -- -- -- -- 5.00 MAX -- 17.00 0.08 1.00 0.50 0.50 0.01 9.00 -
800H/AT
High strength austenitic heat resistant alloy for ASME code applications to 1650°F.
Cr Ni Mn Si Al Ti Al +Ti C Cu P S Fe MIN 19.0 30.0 - - 0.15 0.15 0.85 0.06 - - - - MAX 23.0 35.0 1.5 1.0 0.6 0.6 1.2 0.1 0.75 0.045 0.015 39.5 -
Alloy 20
The alloy designated specifically to withstand sulfuric acid. Practical immunity to chloride stress corrosion cracking. Stabilized to prevent intergranular corrosion as welded. Resistant to polythionic acid SCC.
Ni Cr Mo Mn Cu Si C S P Cb+Ta Fe MIN 32.5 19.0 2.0 - 3.0 - - - - 8.0 x C 1.0 - MAX 35.0 21.0 3.0 2.0 4.0 1.0 0.06 0.035 0.035 - Balance -
230®
High strength nickel based alloy used for land based gas turbines.
Ni Cr W Mo Co Al La Mn C Si Ph S B Ti Cu Fe MIN 47.00 20.00 13.00 1.00 - 0.20 0.005 0.30 0.05 0.25 - - - - - - MAX 65.00 24.00 15.00 3.00 5.00 0.50 0.005 1.00 0.15 0.75 0.03 0.015 0.015 0.10 0.50 3.00 -
W
Alloy W is a solid solution strengthened nickel superalloy developed primarily as a filler metal for welding dissimilar alloys, AWS ERNiMo-3
Cr Ni+Co Mo Co* V C Fe Mn Si P S MIN 4.0 -- 23.0 -- -- -- 4.0 -- -- -- -- MAX 6.0 Reste 26.0 2.5 0.6 0.12 7.0 1.0 1.0 0.04 0.03