300 series of stainless steel are used widely, most of them have a strength of corrosion resistance, heat resistance and a good chemical performance. Specification Grade 301 ,304 ,304L ,316 ,316L ,309 S,310 ,321 Standardl ASTM A240, JIS G4304, G4305, GB/T 4237, GB/T 8165, BS 1449, DIN17460, DIN 17441 Thickness 0.2-10.0mm Width 600mm min Length 2000mm-8000mm or as customers' request Surface NO1,No.4,2B, BA, 6K, 8K, Hair Line with PVC Chemical Composition Grade C Si n P≤ S≤ Cr Mo Ni Other 301 ≤0.15 ≤1.00 ≤2.00 0.045 0.03 16-18 - 6.0 - 304 ≤0.07 ≤1.00 ≤2.00 0.035 0.03 17-19 - 8.0 - 304L ≤0.075 ≤1.00 ≤2.00 0.045 0.03 17-19 - 8.0 309S ≤0.08 ≤1.00 ≤2.00 0.045 0.03 22-24 - 12.0 - 310 ≤0.08 ≤1.5 ≤2.00 0.045 0.03 24-26 - 19.0 - 316 ≤0.08 ≤1.00 ≤2.00 0.045 0.03 16-18.5 2 10.0 - 316L ≤0.03 ≤1.00 ≤2.00 0.045 0.03 16-18 2 10.0 - 321 ≤0.12 ≤1.00 ≤2.00 0.045 0.03 17-19 - 9.0 Ti≥5×C Mechanical Properties Grade YS(Mpa) ≥ TS (Mpa) ≥ El (%) ≥ Hardness(HV) ≤ 301 200 520 40 180 304 200 520 50 165-175 304L 175 480 50 180 309S 200 520 40 180 310 200 520 40 180 316 200 520 50 180 316L 200 480 50 180 321 200 520 40 180 Our company also has our own advanced testing equipment,which can make physical testing and chemical analysis including spectral  analysis,metallographic analysis,ultrasonic testing, hardnesss testing,impact testing, bending testing, tensile testing in room tempreature and high tempreature etc. Only yhe qualified products can be shipped to our clients. Our quality control system as belows: Raw material: chemical composition Ingots: chemical composition Forgings: UT/PT Cold rolling: Size/ surface Finish Goods: Mechanical properties/ CMTR/ Metallographic Application Oil & Gas Food Service/Restaurant Motorsports Government/Military Pumps & Valves Machined Fabricated Components Power Distribution Fabricators Aerospace Metal Service Centers Nuclear Marine/Shipbuilding Chemical Processing