SUS310 Steel Introduction and application - PTJ Blog

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Steel Genus :SUS310



SUS310S is one of the Japanese SUS series austenitic stainless steels.
  • Grade: SUS310S
  • Executive Standard: JIS G4311:1991

2. Characteristics And Scope Of Application

SUS310S stainless steel is a Japanese SUS series austenitic stainless steel. The oxidation resistance is better than 0Cr23Ni13.
 In fact, it is mostly used as heat resistant steel.

3. Chemical Composition

  • Carbon C : ≤ 0.08
  • Silicon Si: ≤1.00
  • Manganese Mn: ≤ 2.00
  • Sulfur S :≤0.030
  • Phosphorus P :≤0.035
  • Chromium Cr: 24.00~26.00
  • Nickel Ni: 19.00~22.00

4. Mechanical Properties

  • Tensile strength σb (MPa): ≥520
  • Conditional yield strength σ0.2 (MPa): ≥ 205
  • Elongation δ5 (%): ≥ 40
  • Area shrinkage ψ (%): ≥ 50
  • Hardness: ≤187HB; ≤90HRB; ≤200HV

5. Heat Treatment Specifications And Metallographic Organization

  • Heat treatment specification: solid solution 1030 ~ 1180 ° C fast cooling.
  • Metallographic organization: The tissue is characterized by austenite type.

6.Delivery Status

Generally, it is delivered in the state of heat treatment, and the type of heat treatment is indicated in the contract;
if it is not specified, it is delivered in the state of no heat treatment.

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