Views: 0 Author: Site Editor Publish Time: 2023-08-11 Origin: Site
NSSC550 (13Cr-2Ni-2Mo) is a product of martensitic (M) series stainless steel with high hardness and high corrosion resistance independently developed by Nippon Steel & Sumitomo Metal.
Properly quenching and tempering this steel can obtain extremely high strength and hardness of 0.2% yield strength 150N/mm2, tensile strength 1750N/mm2, HV (Vickers strength) 550, and has the same strength as SUS304 steel Corrosion resistance, coupled with important forgeability as a wire product, is used as self-tapping bolts in building materials, various high-strength pins, and high-strength chains.
Because of the special properties of the SUS550 material, Tsingri screw experts believe that the screw produced by this material may replace the composite screw in the future, because the essence of the composite screw is to apply the strength of high-strength alloy steel and the high corrosion resistance of stainless steel, and SUS550 at the same time With high strength and high corrosion resistance.
However, due to the limited production of this material, there are not many SUS550 screws on the market, and the cost is very high. They are only used in some specific environments in the European market.
