... plate. Grades:Q235, SS400, SPHC, A36, A283, St37-2, S235JR Other grades :Q345, 45# .astm a572. 1 Standard:GB3274--1988 2 ... widely used Standard GB3274---1988 Material QualityQ235Thickness10---120mmWidth1.6---2.45mLength5---15mProductive TechnologyHot Rolled 1 Standard:GB3274---19882 ... Material Quality:Q2353 Thickness:10---120mm4 Width:1.6---2.45m5 Length:5---15m6 Productive Technology:Hot Rolled7 ...