Size: OD from 8mm to 114mm Wall Thickness from 0.5mm to 5mm Material: Q195, Q215,Q235, Gr.B, Gr.C , Gr.D,St33, St37-2,S235JR,S235JRG2,SS330,SS400, etc: Standard: ASTM A500 GB/T 13793-1992 Usage: General Construction(Scaffolding, Stand, Towers),Furniture, Mechanical Parts, Vehicles, Transportation of Water, Gas , Air, Steam and Oil etc with relatively low pressure Origin china Material HR COILS, CR COILS Delivery lead time 45DAYS Minimum order 50TONS Supply ability 350,000TONS/YEAR