Andres Driesholten

309S

309S stainless steel is a highly alloyed austenitic stainless steel used for its excellent oxidation resistance, high-temperature strength, and creep resistance. The lower nickel content of Stainless Steel 309, compared to Stainless Steel 310, improves its resistance to hydrogen sulfide (H2S) attack at high temperatures.

309S Stainless Steel Plate Specification:

Thickness:0.3—100mm;width:1000—3000mm;length:3000—18000mm

309S stainless steel plate Chemical Composition:

Grade  Chemical Composition %  
C Cr Ni Mn P S Si other
309S ≤ 0.08 22-24 12-15 ≤ 2 ≤ 0.045 ≤ 0.03 ≤ 0.75 -

309S stainless steel plate Mechanical Properties:

Specification (mm) mechanical properties
Hardness Elongation δ5 (%) Area reduction Ψ (%) Tensile Strength σb (MPa) Yield Strength σ0.2 (MPa)
0.4-80 *1000*2000 HB HRB HV ≥40 ≥50 ≥520 ≥205
1220*2440 ≤187 ≤90 ≤200
1500*6000

309S stainless steel plate is heat-resistant austenitic stainless steel materials.It has more performance than austenitic stainless steel. Besides,it is of high temperature-resistance, so slso named heat resistant steel,and is regarded as the first choice of heat treatment engineering.

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