... steel tubing/Galvanized Pipe/Galvanized steel pipe Product Details:O.D.:15-508mm Thickness:0.8-16mm Place of origin:Tianjin ... Brand Name:YXLSteel Grade:Q195,Q215,Q235,Q345,,ASTM A53 A/B,Standard:GB/T9711,GB/T3091,EN 10025,ASTM A500,BS ... .LengthLess than 12mSteel materialQ195 → Grade B, SS330,SPHC, S185Q215 → Grade C,CS Type B,SS330, SPHCQ235 → Grade D,SS400,S235JR,S235JO,S235J2Q345 → SS500 ...