1. Boiler and Pressure Vessel Steel Plate 2. Thickness: 5-200mm 3. Width ... (S)A516 G Mild steel checker plate(Q235B,SS400,St37-2,St52,ASTM A36,A283GRC,S235JR) Specificate1 ... 20Cr, 40Cr, 10CrMoAL, 38CrMoAL, 20CrMnMo, 12CrMoVNi, 30CrMnSiABridge Steel Plate: 1>. Standard: Special Condition Grade: 14MnNbq2>. GB Q235qC, ... requirement. Mild steel checker plate(Q235B,SS400,St37-2,St52,ASTM A36,A283GRC,S235JR)