the annealing temperature of 440C is very low, and the hardness after quenching is high, which usually reaches hrc56-58, with good corrosion resistance (magnetic) and strong toughness.
11Cr17 is a metal alloy material.The hardness of 11Cr17 is the highest among all kinds of stainless steel and heat-resistant steel.
Stainless steel (VG10) is the premier grade of V gold steel series.Born in yuexin area of Japan, it is known as the best quality steel in Japan and even the world. But now it is perfectly replaced by innovative Chinese technology that can produce high cost-effective steel of the same quality as Japan's.
8Cr17, stainless steel hardened state, than 7Cr17 hard, but higher toughness than 11Cr17.8Cr17 (440B) is mainly used for cutting tools, measuring tools, bearings and valves
9Cr18Mo(440C) is high quality stainless steel, with chromium content of 18%, molybdenum content of 1%, carbon content of 0.9%, mainly used in weak corrosion medium parts, medical tool springs, rolling bearings, surgical knives, surgical instruments, excellent corrosion resistance, excellent processing ability, after heat treatment hardness up to 58HRC.
DIN 1.4116 (DIN 1.4116) is a bearing steel used to make ball bearings, rollers and bearing rings. Bearing steel has high and uniform hardness and wear resistance, as well as high elastic limit.
8Cr14MoV can be used to make cold working die steel with large section, complex shape, large impact force and high wear resistance, such as silicon steel sheet punching die, cold cutting scissors, cutting edge die, etc
Secondary remelting has been adopted to further reduce the harmful elements P and S in the steel, make the composition more uniform, and improve the purity and compactness of the steel.Adding molybdenum, vanadium and other elements, so that the hardness of steel, wear resistance, temper resistance has been further improved.
7Cr17 steel has good corrosion resistance.It has satisfactory corrosion resistance in fresh water, steam, crude oil, gasoline, sweat, alcohol and food.Mainly used for manufacturing corrosion resistant knievs, valve parts, bearings, rods, hooks, etc.