70 rowsMaterial of hollow section . ASTM A500 Grade B, ASTM A513 (1020-1026) ASTM A36 (A36) EN 10210:S235,S355,S235JRH, S355J2H,S355NH EN 10219:S235,S355,S235JRH, S275J0H, S275J2H, S355J0H, S355J2H. Rectangular / Square hollow section SIZE MMWEIGHT KG/MEST. LBS. PER FT.SIZE MM40 x 20 x 1.601.3800.93150 x 100 x 6.3040 x 20 x 2.602.1001.41150 x 100 x 8.0050 x 30 x 1.601.8801.27150 x 100 x 10.0050 x 30 x 2.602.9201.97160 x 80 x 3.20 70 rows on nan-steel Carbon Steel Rectangular Hollow Section , Covering an area of 164, 000 square meters, is a comprehensive enterprise of steel deep-processing integrating ratio-frequency welded pipe , galvanized pipe , cold-rolled sheet and galvanized coil, with the annual yield capacity of 2,000, 000 tons of welded pipe , 450, 000 tons of galvanized pipe ranging from15mm*15mm/10mm*20mm carbon hollow section square rectangular steel pipe