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 1
1. Structure of composite screwThe industry usually uses SUS304/316+ high carbon alloy steel alloy steel for welding combination, the combination of composite stainless steel drilling screw has SUS304/316+SCM435/SS4202. Features of composite screwsThe composite stainless steel drill tail screw is a
Typical fastener hydrogen embrittlement occurs in carbon steel and alloy steel materials.The hardness of fasteners is a core parameter. When most standards talk about hydrogen embrittlement, they will point out that the risk of hydrogen embrittlement begins when the hardness exceeds 320HV. Some expe
What is hydrogen embrittlement of fasteners?Hydrogen embrittlement is a very serious problem in the fastener industry, including building fasteners, roofing screws, composite screws, and coated screws. It will change the structure of the material and cause a sharp decline in mechanical properties.Hy
