400 series stainless is martensitic, and has a lower cost advantage. The most widely used grades are 430BA, 410. Our 400 series is mainly from POSCO china and BAOSTEEL.
410 stainless steel is a stainless steel brand produced according to ASTM standards. Carbon 0.15%, chromium 13%,410 stainless steel: has good corrosion resistance, mechanical workability, general purpose blade class, valve class.
Heat treatment of stainless steel: solution treatment (℃) 800-900 slow cooling or 750 fast cooling.
Chemical composition of stainless steel: C≤0.15,Si≤1.00,Mn≤1.00,P≤0.035,S≤0.030,Cr=11.50~13.50.