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309S Stainless Steel

309S Stainless Steel

Grade: 300 Series Stainless Steel
Type: Stainless Steel Plate,Stainless Steel Pipe/Tube, Stainless Steel Coil
Standard: ASTM A240, JIS G4350
Specification: Thickness:0.3mm-100mm||||||Width:200-3000mm
Application:309S Stainless Steel is used for its high-temperature oxidation resistance or resistance to H2S attack for applications.

309S Stainless steel Introduction

309S Stainless Steel , 309S stainless steel, Stainless 309S

Alloy 309S and Alloy 310S austenitic stainless steels are typically used for elevated temperature applications. Their high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic Alloy 304.  
309S Stainless steel Usage
It is used widely in the heat treatment industry for furnace parts such as conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, and baskets and trays to hold small parts. The grade is also used in the chemical process industry to contain hot concentrated acids, ammonia, and sulfur dioxide. In the food processing industry, they are used in contact with hot acetic and citric acid.
SS 309S Surface Finish:
2B,NO.1, BA, NO.4, HL
309S/310S Stainless steel Typical Chemical Requirements(%)
Type  C Mn P S Si Cr Ni N
ASTM 309S ≤ 0.08 ≤ 2.00  ≤ 0.045  ≤ 0.030  ≤ 0.75  22.0--24.0  12.0--15.0  --
ASTM 310S ≤ 0.08 ≤ 2.00 ≤ 0.045 ≤ 0.030 ≤ 1.50 24.0--26.0 19.0--22.0 --

309S/310S Stainless steel Mechanical Test Requirements(%)

Type Tensile Strength, min  Yield Strength, min  Elongation in 2 in.or 50mm, min, %  Hardness, max
ksi MPa ksi Mpa HB HRB HV
ASTM 309S 75 515 30 205 40 217 95 --
ASTM 310S 75 515 30 205 40 217 95 --


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