... ---SS540 ,Q235B--Q420B 3>Thickness : 1.6mm---20mmm 4>Width :600mm---2000mm Hot roll steel plate ---Usage(1).electric steel tower ,communication steel ... . 50Chemical Composition---C≤0.20, Si≤0.55, Mn1.00-1.60,S≤0.040 , P≤0.040 V≤0.02 ... /TDelivery ConditionsPacked by bundles , and shipment by 20ft or 40ft container or by bulk CertificateThe mill certificates of quality SS400 Hot ...