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Hardness Conversion Table – Brinell, Rockwell,Vickers – Various steels . (Archived) (archived November 11, 2011) Rockwell to Brinell conversion chart (Brinell, Rockwell A,B,C)
The 10xx series is the most popular choice for carbon steel used in knives as well as katanas. They can take and keep a very sharp edge. [59] 1095, a popular high-carbon steel for knives; it is harder but more brittle than lower-carbon steels such as 1055, 1060, 1070, and 1080.
Very hard steel (e.g. chisels, quality knife blades): HRC 55–66 (Hardened High Speed Carbon and Tool Steels such as M2, W2, O1, CPM-M4, and D2, as well as many of the newer powder metallurgy Stainless Steels such as CPM-S30V, CPM-154, ZDP-189. There are alloys that hold a HRC upwards 68-70, such as the Hitachi developed HAP72.
A cold work steel used for gauges, cutting tools, woodworking tools and knives. It can be hardened to 66 HRC, typically used at 61-63 HRC. Also sold as 1.2842 and 90MnCrV8. [9] O6: 1.45% C, 1.0% Mn, 1.0% Si, 0.3% Mo: A cold work graphitic steel with outstanding resistance to metal-to-metal sliding wear and galling.
Cold rolled (18) Gr.60 60 70 1.17 Hot rolled (16) Cold rolled (16) Gr.65 65 75 1.15 Hot rolled (14) Cold rolled (15) Gr.70 70 80 1.14 Hot rolled (12) Cold rolled (14) Cold-rolled carbon structural steel sheet A611 A 25 42 1.68 26 B 30 45 1.50 24 C 33 48 1.45 22 D 40 52 1.30 20 Zinc-coated or zinc-iron alloy-coated steel sheet A653 SS Gr. 33 33 45
Steel grades to classify various steels by their composition and physical properties have been ... Flat Products for Cold Forming ... 1018: CK15 C15 C16.8: 040A15 080M15