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Stainless Steel 304

304 stainless, a variation of 18-8 grade stainless, is the world’s most commonly used stainless steel grade. Available in the widest range of products, forms and finishes, its excellent welding characteristics make is idea for most manufacturing needs.

Component Elements Properties Percent
Carbon (maximum) .08%
Manganese (maximum) 2%
Phosphorus (maximum) .045%
Sulfur (maximum) .03%
Silicon (maximum) .75%
Chromium 18 – 20%
Nickel 8 – 12%
Nitrogen (maximum) .1%
Iron `Balance

Mechanical Properties (Min, Solution Treated)

Property Value
Tensile Strength 75 ksi
Yield Strength at 0.2% Offset 30.0 ksi
Elongation in 4D 40%
Reduction of Area 50%

Select AMS Number:

AMS Number Alloy Type UNS Cross Ref. Spec Misc./Shape
AMS 5639 304 Stainless Steel S30400 ASTM-A484 Bar 304
AMS 5857 304 Stainless Steel S400  
AMS 5857 Bar 304 Stainless Steel S400 - Bar AMS 5857 Bar
AMS 5857 Wire 304 Stainless Steel S400 - Wire AMS 5857 Wire
AMS 5868 304 Stainless Steel S304 MIL-T-5695D Tubing 304
AMS T 6845 304 Stainless Steel - MIL-T-6845D Tubing 304
AMS T 8506A 304 Stainless Steel - MIL-T-8506A Tubing 304