Performance Characteristics: Cold work mould steel, similar to ASTM A2,it is a kind of widely used steel in A. Good wear resistance, minimal distortion, good quench-hardening ability, high pressure strength. Applications: Air hardening tool steel which is easier to machine than D2 or D3 but offers high abrasion resistance with good toughness. steel for pressing mold and cutting knife with heavy-loading and complex shape. Chemical Composition (%): C Si Mn V Ni Cr Cu S P
0.95~1.05 ≤0.50 ≤1.00 0.15~0.50 ≤0.25 4.75~5.50 ≤0.30 ≤0.030 ≤0.030
Mechanical properties: Hardness: annealing, less than or equal to 255 HB,creasing diameter is more than or equal to 3.95 mm; quenching is more than or equal to 60 HRC. Delivery Condition: Annealed
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