... 1500~4200L 6000~18000A,B,D,E,A32,D32,E32,A36,D36,E36GB712—2009Rules of classificationsociety7Steel plates for boilersH 6~120W ... ,Q620,Q690GB/T16270—1996Main products:steel plate,steel sheet,steel coil,shipbuilding steel sheet,stainless steel sheet,galvanised steel,PPG,steel pipe, steel strip, flat steel, etcMechanical PropertiesGradeThickness(mm)Yieldpoint ...