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Stainless Steel

Viking Iron Works, stocks and forges various grades of martensitic, austenitic and ferritic stainless steels. 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.

303 304
310 316
317 321
347 403
410 416
418 420
422ESR 422VAR
430 430F
431 440C
440CVM 304L
Nitronic 50 Nitronic 60
316L 317L



303

(UNS S30300) Austenitic Stainless steel, not hardenable by heat treatment. Was designed to exhibit improved machinability by adding sulfur. Has good mechanical and corrosion-resistant properties.

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304

(UNS S30400) Chromium-Nickel austenitic stainless steel, with high ductility. Can only be hardened by cold working.

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310

(UNS S31000) A chromium-nickel austenitic stainless steel. Has excellent oxidation resistance, very good high temperature properties and ductility. 310 stainless steel can not be hardened heat treatment.

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316

(UNS S31600) A chromium-nickel austenitic stainless steel. Has good corrosion resistance and high tensile and creep strength at elevated temperatures. 316 can not be hardened by heat treatment. 316 can be hardened by cold working only.

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317

(UNS S31700) A chromium-nickel austenitic stainless steel. Has good corrosion resistance and high tensile and creep strength at elevated temperatures. 317 can not be hardened by heat treatment. 317 can be hardened by cold working only.

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321

(UNS S32100) A titanium stabilized, nickel chromium austenitic stainless steel. The addition of titanium provides improved intergranular-corrosion resistance. 321 stainless steel can only be hardened by cold working. Used in application of intermittent heating between 800ºF-1650ºF.

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347

(UNS S34700) A columbium/tantalum stabilized austenitic stainless steel. Has very good intergranular-corrosion resistance. Used in application of intermittent heating between 800ºF and 1650ºF.

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403

(UNS 40300) A martensitic chromium stainless steel. Is corrosion and heat resistant. Is hardenable by heat treating. Heat material to 1650-1800ºF then oil quench, air or fan cool depending on size.

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410

(UNS S41000) A martensitic stainless steel, with good strength, corrosion resistance and ductility. Resistant to scaling up to 1200ºF. Is hardenable through heat treatment. Heat to 1750-1850ºF soak at heat then quench in oil or air.

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416

(UNS S41600) A high chromium, martensitic, free machining, corrosion resistant grade of stainless steel. Has non-galling, reduced scratching and seizing characteristics. Is hardenable by heat treating. Heat to 1700-1850ºF and soak at heat then quench in oil.

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418

(UNS SA41800) A chromium-nickel-tungsten martensitic stainless steel, also known as "Greek Ascoloy". Corrosion and heat resistant. Is hardenable by heat treating.

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420

(UNS S42000) Martensitic hardenable 12% chrome stainless steel with greater strength and hardness and better wear resistance than 410 stainless.

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422ESR

(UNS S42200) An Electro-Slag Remelt (ESR) chromium martensitic stainless steel. Has good high temperature properties up to 1200ºF and creep-rupture properties in the range of 600-1200ºF. Is hardenable by heat treating.

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422VAR

(UNS S42200) A Vacuum Arc Remet(VAR) chromium martensitic stainless steel. Has good high temperature properties up to 1200ºF and creep-rupture properties in the range of 600-1200ºF. Is hardenable by heat treating.

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430

(UNS S430000) A non-hardenable feritic stainless steel. Has good corrosion resistance and heat oxidation resistance up to 1500ºF.

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430F

(UNS S43020) A ferritic stainless steel. Is not harden by heat treatment and is magnetic in all conditions. Has good physical and mechanical characteristics.

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431

(UNS S43100) A martensitic stainless steel designed to provide improved corrosion resistance and toughness in a quench-hardenable stainless steel. Has excellent impact strength at high hardness levels.

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440C

(UNS S44000) A martensitic, high-carbon chromium stainless steel. Typically used as a bearing steel. Can attain hardness of 60HRc when heat treated.

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440CVM

(UNS S44000) 440CVM Consumable electrode vacuum melted (AMS 5618) A premium aircraft-quality corrosion resistant, martensitic stainless steel. Typically used for anit-friction bearing components.

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304L

(UNS S30403) 304L is a low carbon version of 304 stainless steel. The low carbon minimizes problems of carbide precipitation during welding. Can only be hardened by cold working.

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Nitronic 50

(UNS S20910) A high nitrogen, Molybdenum austenitic stainless steel. Has very good corrosion resistance and good mechanical properties as high and low temperatures. Nitronic 50 can not be hardened by heat treatment.

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Nitronic 60

(UNS S21800) A Chromium-Manganese-Nickel austenitic stainless steel alloy. Has very good high temperature oxidation resistance and low temperature impact resistance. Additionally Nitronic 60 has excellent galling resistance at low and elevated temperatures. Nitronic 60 can not be hardened by heat treatment.

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316L

(UNS S31603) A chromium-nickel austenitic stainless steel. The L signifies that it tis a low-carbon (0.03% max) modification of standard 316 stainless steel. The lower carbon improves the welding properties of the material. Has good corrosion resistance and high tensile and creep strength at elevated temperatures. 316L can not be hardened by heat treatment, can be hardened by cold working only.

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317L

(UNS S31703) A chromium-nickel austenitic stainless steel. The L signifies that it tis a low-carbon (0.03% max) modification of standard 317 stainless steel. The lower carbon improves the welding properties of the material. Has good corrosion resistance and high tensile and creep strength at elevated temperatures. 317L can not be hardened by heat treatment, can be hardened by cold working only.

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