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Precipitation Hardening Stainless Steel

Viking Iron Works, stocks and forges Precipitation Hardening Stainless Steels such as 13-8MO, 15-5PH, 17-4PH, C450 and C455. Viking forges seamless rings & sleeves, bars , shafts, blocks, discs, upset head and hub forgings, in any of the alloy material grades listed in our materials list. If you have a requirement for forgings not listed in our material list contact us and we would be glad to have the opportunity to review and quote your forging requirements.

13-8 MO 15-5 PH
15-5 VAR 17-4 / 17-4PH
17-4 VAR C450
C455



13-8 MO

(UNS S13800) Martensitic precipitation hardening stainless steel with high hardness and good corrosion resistance. 13-8 MO is age hardened (precipitation hardened) between 950 and 1150ºF with 950ºF age yielding the highest strength.

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15-5 PH

(UNS S15500) Chromium-nickel-copper precipitation hardening stainless steel with high strength and moderate corrosion resistance. High strength up to about 600ºF. Hardened through age hardening (precipitation hardening) at 900, 1075 or 1075ºF with 900ºF age yielding the highest strength.

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15-5 VAR

(UNS S15500) A Vacuum Arc Remelted (VAR) chromium-nickel-copper precipitation hardening martensitic stainless steel with high strength and moderate corrosion resistance. High strength up to about 600ºF. Hardened through age hardening (precipitation hardening) at 900, 1075 or 1150ºF with 900ºF age yielding the highest strength.

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17-4 / 17-4PH

(UNS S17400) 17-4 is a chromium-nickel-copper precipitation hardening martensitic stainless steel with high strength and moderate corrosion resistance. High strength is maintained to about 600ºF. 17-4 is age hardened (precipitation hardened) between 900 and 1150ºF with 900ºF age yielding the highest strength.

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17-4 VAR

(UNS S17400) 17-4 VAR is a Vacuum Arc Remelted (VAR) chromium-nickel-copper precipitation hardening martensitic stainless steel with high strength and moderate corrosion resistance. High strength is maintained to about 600ºF. 17-4 VAR is age hardened (precipitation hardened) between 900 and 1150ºF, with a wide range of mechanical properties depending on aging temperature.

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C450

(UNS S45000) Custom 450 is a martensitic age hardenable stainless steel. It has very good corrosion resistance and a yield strength of over 100 KSI in the annealed condition. Custom 450 welds and brazes well.

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C455

(UNS S45500) Martensitic age-hardenable stainless steel. Has high strength and good corrosion resistance. Custom 455® is a registered trademark of Carpenter Technology Corporation.

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