SEAMLESS square steel pipe

Normal Size Diamm T(mm) Dia (mm) T(mm) Dia (mm) T(mm) 30*30 2-4 120*120 2-14 250*250 8-25 40*40 2-4 125*125 2-14 255*255 8-25 50*50 2-5 130*130 2-14 258*258 8-25 60*60 2-5 135*135 8-14 260*260 8-25 70*70 2-5 140*140 8-20 280*280 8-25 75*75 2-5 150*150 8-22 300*300 9-25 80*80 2-8 160*160 8-22 350*350 9-25 90*90 2-9 180*180 8-22 360*360 9-25 100*100 2-14 200*200 8-25 400*400 9-25 110*110 2-14 220*220 8-25 115*115 2-14 240*240 8-25 Diamm T(mm) Diamm T(mm) Diamm Tmm 60*20 2-3 80*40 2-6 110*60 5-8 60*30 2-3 90*40 2-6 110*70 5-10 60*40 2-6 90*50 2-6 120*60 5-8 70*20 2-3 100*20 2-4 120*80 5-10 70*30 2-3 100*30 2-4 120*100 5-14 70*40 2-6 100*40 2-4 125*90 5-10 70*50 2-6 100*50 2-6 125*100 5-14 75*45 2-6 100*80 4-9 130*120 5-14 140*80 5-6,8-10 Big SizeDia (mm) T(mm) Dia (mm) Tmm Dia (mm) Tmm 180*100 5-14 300*200 7-25 400*250 7-20 200*100 6-18 300*250 7-25 400*300 7-25 200*150 5-6,8-25 320*200 7-25 420*350 7-25 250*100 5-14 350*100 7-18 450*150 7-18 250*200 6-25 350*200 7-25 450*250 7-22 250*225 6-25 350*250 7-25 500*300 7-25 300*100 7-18 350*300 7-25 600*200 7-18 300*150 7-18 400*200 7-18 600*400 8-20 square steel pipe: Features: 1) Dimentions: 20*20mm-800*800mm, Thickness: 2mm-25mm Length: <13m 2) Material: Q235, Q345, 20#, ST37, ST44, ST52, ASTM A53, ASTM A106,STKR490 3) Standards: JIS G 3466, DIN EN 10210, DIN EN10219, ASTM A500, GB/T 3094-2000, GB/T 6728-2002 4) Use: construction structure, machinery making, container, hall structure, sun seeker, offshore oil field, sea trestle, motorcar cassis, airport structure, shipbuilding, automobile axle pipe and so on. 5) Packing: square shape bundles wrapped with strong steel strip or according to customers' requests 6) Surface: oiled or black painted to prevent rust 7) Plain or beveled ends 8) OEM available