... , handcraft, shelf, luggage, hardware, grinding media,Valve, aerosol and finger pump, bearings, and electronic components6. Standard: GB/T-308-2002, GB/T1148 ... . Better corrosion resistance than SS304 specially against Sulfuric acid and ink/bleach/nitric acidAISI 4200.07~ 0.251.00 ... 045 Max0.02 MaxMartensite,fair corrosion to water, alcohol,oil and food product, flat surface HRC 58 min *Austenitic steel ...