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S31803 Stainless Steel Composition & Standard Duplex Properties
S31803 Stainless Steel Composition & Standard Duplex Properties
S31803 is a standard duplex stainless steel containing 21–23% chromium, 4.5–6% nickel, 2.5–3.5% molybdenum, and nitrogen. Its performance is similar to S32205, though S32205 has a narrower and optimized composition range.
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S31803 Stainless Steel Composition & Standard Duplex Properties
S31803 Stainless Steel Composition & Standard Duplex Properties
S31803 is a standard duplex stainless steel containing 21–23% chromium, 4.5–6% nickel, 2.5–3.5% molybdenum, and nitrogen. Its performance is similar to S32205, though S32205 has a narrower and optimized composition range.
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S32205 / 2205 Stainless Steel Composition & Duplex Corrosion‑Resistant Properties
S32205 / 2205 Stainless Steel Composition & Duplex Corrosion‑Resistant Properties
S32205 / 2205 is the most widely used duplex stainless steel, containing 22–23% chromium, 4.5–6.5% nickel, 3–3.5% molybdenum, and nitrogen. It combines ferritic and austenitic phases, offering twice the yield strength of 304/316 and significantly higher p
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S32304 Stainless Steel Composition & Duplex Corrosion‑Resistant Properties
S32304 Stainless Steel Composition & Duplex Corrosion‑Resistant Properties
S32304 is a standard duplex stainless steel containing 22–24% chromium, 3–5% nickel, nitrogen, and small amounts of molybdenum. It offers excellent resistance to pitting and crevice corrosion, with a PREN value higher than 316L.
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S32101 Stainless Steel Composition & Lean Duplex Properties
S32101 Stainless Steel Composition & Lean Duplex Properties
S32101 is a lean duplex stainless steel containing approximately 21–22% chromium, low nickel (1.3–1.7%), nitrogen, and manganese. It offers twice the yield strength of austenitic grades while maintaining good resistance to pitting and crevice corrosion.
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420 Stainless Steel Composition & High‑Hardness Martensitic Properties
420 Stainless Steel Composition & High‑Hardness Martensitic Properties
420 (UNS S42000) is a high‑hardness martensitic stainless steel containing 12–14% chromium and elevated carbon levels (0.15–0.40%). It can be hardened above 50 HRC through heat treatment, offering excellent wear resistance and mechanical strength.
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420 Stainless Steel Composition & High‑Hardness Martensitic Properties
420 Stainless Steel Composition & High‑Hardness Martensitic Properties
420 (UNS S42000) is a high‑hardness martensitic stainless steel containing 12–14% chromium and elevated carbon levels (0.15–0.40%). It can be hardened to above 50 HRC through heat treatment, making it a classic high‑hardness stainless steel.
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416 Stainless Steel Composition & Free‑Machining Martensitic Properties
416 Stainless Steel Composition & Free‑Machining Martensitic Properties
416 (UNS S41600) is one of the most free‑machining martensitic stainless steels, enhanced with sulfur to improve turning, drilling, and threading performance. As a typical free‑machining stainless steel, it offers excellent machinability while maintaining
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410 Stainless Steel Composition & Martensitic Properties
410 Stainless Steel Composition & Martensitic Properties
410 (UNS S41000) is a martensitic stainless steel containing 11.5–13.5% chromium with very low nickel content. It is heat‑treatable and capable of achieving high strength and hardness through quenching and tempering. As a classic martensitic stainless ste
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430 Stainless Steel Composition & Ferritic Corrosion‑Resistant Properties
430 Stainless Steel Composition & Ferritic Corrosion‑Resistant Properties
430 (UNS S43000) is a ferritic stainless steel containing 16–18% chromium and no nickel, making it an economical corrosion‑resistant alloy. It offers good resistance in atmospheric and mildly corrosive environments but is less resistant to chlorides compa
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310S Stainless Steel Composition & High‑Temperature Oxidation Resistance
310S Stainless Steel Composition & High‑Temperature Oxidation Resistance
310S (UNS S31008) is a high‑temperature austenitic stainless steel with 24–26% chromium and 19–22% nickel. Its high chromium‑nickel content provides outstanding oxidation resistance and structural stability during long‑term exposure at 1050–1150°C. The lo
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321H Stainless Steel Composition & High‑Temperature Strength
321H Stainless Steel Composition & High‑Temperature Strength
321H (UNS S32109) is the high‑carbon, titanium‑stabilized variant of 321 stainless steel. With 17–19% chromium, 9–13% nickel, and titanium added to prevent carbide precipitation, it offers improved resistance to sensitization during high‑temperature servi
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