1.stainless steel 420J2 for dive knife 2.Hardness:54~55 HRC 3.Tough & sharp 4.Corrosion resistant 5.Durable 420J2 stainless steel for dive knifeNote that the final hardness level achieved is not only a factor of composition, but depends greatly on proper heat treatment and quenching.CHEMICAL COMPOSITIONAISI 420J2 (X30Cr13) is easy for cutting and polishing. It is suitable to be used for bulk ...
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