May 9, 2024

420J1 Vs. Stainless steel 420J2: what’s the difference? Generally, grade 420 belongs to the martensitic stainless steel family. The grades of the martensitic family got their hardness from heat treatment processes such as quenching. 420J1 and 420J2 grades also get their hardness by heating at high temperatures and then quenched in oil or open air. […]

What is 304 stainless steel coils surface finish? Through different processing methods of cold rolling and surface reprocessing after rolling, the surface finish of 304 stainless steel coils can have different types. The surface processing of stainless steel coils have NO.1, 2B, No. 4, HL, No. 6, No. 8, BA, TR hard, Rerolled bright 2H,