Type 304 Stainless Steel

Jan 22, 2026

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ASTM 409 Stainless Steel: Cost-Effective Ferritic Grade for Automotive Exhaust SystemsAustenitic 304 Stainless Steel Cost-EffectivenessWhat is SUH409 material plate?

Description Type 304
Proof Stress 0.2% (MPa) 205
Tensile strength (MPa) 515
Elongation A5 (%) 40
Hardness HB: 201
HRB: 92

 

Chemical Composition

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UNS No S30400
EN 1.4301
AISI 304
Carbon (C) 0.07
Silicon (Si) 0.75
Manganese (Mn) 2.00
Phosphorus (P) 0.045
Sulphur (S) 0.030
Chromium (Cr) 17.50 - 19.50
Molybdenum (Mo)  
Nickel (Ni) 8.00 - 10.50
Nitrogen (N) 0.10

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