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310S Austenitic Chromium-nickel Stainless Steel

Oct 21, 2021

Grade 310S austenitic chromium-nickel stainless steel

Chemical Composition


Application area Application area:

Stamping dies, fixtures, tools, gauges, paper cutters, auxiliary tools, etc.

Improve the fragile nature of the usual carbon tool steel, and extend the life of the tool. Vacuum degassing refined steel with stable quality. Good hardenability, oil-cooled hardening (less quenching and deformation), good toughness and wear resistance, and durable tools.



Physical Properties

  1. Tensile strength (бb) (Mpa): ≥520

  2. Yield strength (σs) (Mpa): ≥205

  3. Area reduction (ψ)%: ≥50

  4. Mechanical properties ób(MPa)≥520,

  5. ó0.2(MPa)≥205,

  6. δ5(%)≥40,

  7. Ψ(%)≥50, HB≤187 It can withstand high temperatures above 1150℃.

  8. The melting point is 1398℃~1454℃


0Cr25Ni20 stainless steel is austenitic chromium-nickel stainless steel, which has good oxidation resistance and corrosion resistance of 310S stainless steel. Because of the higher percentage of chromium and nickel, it has much better creep strength and can continue to operate at high temperatures. Good high-temperature resistance. Due to the high content of nickel (Ni) and chromium (Cr), it has good oxidation resistance, corrosion resistance, acid and alkali resistance, and high-temperature resistance. After the content, the strength is improved due to its solid solution strengthening effect. The chemical composition of austenitic stainless steel is based on chromium and nickel with the addition of elements such as molybdenum, tungsten, niobium, and titanium. Because of its face-centered cubic structure, Therefore, it has high strength and creeps strength at high temperatures. The melting point is 1470℃, and it starts to soften at 800℃, and the allowable stress continues to decrease.