... series, 400series3. Standard: ASTM, AISI, DIN, JIS, EN, GB 4. Surface: white acid, annealed, black, bright, or as customers requirement NameStainless Steel ... , A312 A304Material Grade201 ( Ni 0.8%),202 (Ni 3.5%~4.5%),301(Ni 5%)304 (Ni 8%, Cr 18%),316 ...