Specifications Grade: din1.2343 / astmh11 / skd6 / gb: 4cr5mosiv Standard: aisi, astm, bs, din, gb, jis Sizes: round dia 16mm to 600mm; flat 16 - 400mm; width: 200mm-800mm Place of origin: hubei, china (mainland) Brand name: hubei Application: heavy duty hot work tools and dies: mandrels, and containers for metal tube and rod extrusion; hot extrusion equipment; tools and dies for the manufacture of hollow bodies, screws, rivets, nuts, and bolts. Dies casting equipment, forming dies, die inserts, hot shear blades, and plastic moulding dies. Smelting & shaping: ef/ esr, hot forged/ hot rolled Production route: ef/eaf+lf+vd/esr Chemical composition: C si mn cr mo v 0.33-0.420.80-1.200.25-0.504.80-5.501.10-1.600.30-0.60