... -Grade:Q235B Equal toJIS-SS400 / ASTM-A283M-Gr.DChemical Composition---C-0.12-0.20, Si≤0.30, Mn0.30-0 ... :Q345B Equal to JIS- SPFC590 / ASTM-A572-Gr. 50Chemical Composition---C≤0.20, Si≤0.55, Mn1.00-1.60,S ... .S.(MPa)470--630 , EL≥22%Payment termsBy 100% irrevocable L/C at sight or T/TDelivery ConditionsPacked by bundles , and shipment ...