7Cr17 belongs to the national standard martensitic stainless steel, the implementation of the standard: GB/T 20878-2007
7Cr17 stainless steel hardened state, hard, but higher than 8Cr17, 11Cr17 toughness. Used as cutting tools, gauges, bearings.7CR17 stainless steel has a high strength of nitric acid and organic acid corrosion resistant parts, cellar ware and equipment.
7Cr17 chemical composition is as follows: