Model Number: 309s Sheet Brand Name: TISCO Key Specifications/Special Features: 309S corresponding Chinese brands are 0Cr23Ni13, American standard and S30908 (USA/AISI/ASTM)Characteristics and uses: corrosion- and heat-resistantCutting stainless steel containing sulfur, main requirements for cutting and surface finish high occasionsLow carbon 309 stainless steel variant, need for welding applicationsLower carbon content makes close to weld heat affected zone to minimize carbide precipitation and carbide precipitation may lead to inter granular corrosion of stainless steel (weld erosion in some environments)