Specifications � grade: alloy steel � standard: aisi, astm, bs, din, gb, jis � od:10-500mm � thickness: max:800mm � width: 205mm~2300mm � length: 1000mm~6000mm � place of origin: china (mainland) � model number: 1.7220 / scm430 / 30crmo4 / 4130 ; 4140/42crmo4/1.7225; en24 34crnimo6 1.6582 4340. � application: mould steel � technique: forged � special use: mold steel , statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears. � shape: round bars/flat bar/plate � technology: hot rolled/forged/clod d raw � heat treatment: annealing/q+t � surface treatment:black/peeling/polishing/machined � delivery condition: hot rolled or forged/ peeled or black surface/annealed or qt � customer's logo: available � test: sgs/ut100%/elements testing � certificate: iso/mill certificate � experience: ten years manufacturer experience