403 stainless steel pipe is produced according to the ASTM standard.

403 is equivalent to our Chinese’ 1 cr12 stainless steel pipe which containing carbon 0.01% and chromium 0.12%. 403 is a kind of international marking method for the stainless steel. 403 stainless steel tube - S40300 (American AISI, ASTM)

Features and use: a kind of mateiral with good corrosion and heat resistance, widely used in turbine blade and high stress components .

The difference between 403 stainless steel and 304 stainless steel:
1) 403 material is a kind of martensite stainless steel;304 material is a kind of austenitic stainless steel
2) Austenitic stainless steel is non-magnetic or weak magnetic;  martensite and ferrite are magnetic.
3) Corrosion resistance and toughness of 304 is better than 403; 403 is a kind of stainless steel can be hardened, after quenching, the hardness is higher.
4) 304 stainless steel containing about 8% of the nickel, however, 403 do not contain nickel.

If you have any need for the 403 ss pipe,ss strip, ss wire,ss bar etc. please contact us freely.

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