... :0.8-270x100-5000(mm) ASTM F136 etc. metal block round 1. Grades: Gr1, Gr2, Gr3, Gr5, Gr7, Gr9, Gr11, Gr12 ... pressure,vessel.(4). grade 4 can be used in some fittings parts and fastening pieces, but for complex shape need 300 ... /m)Hot processing< 356Hot processing≥3510Hot processed, polished&cold processed round, square bar< 354≥355Product packaging show: Our internal filling material ...