... *300m 3. Standard: GB, JIS, ASTM 4. Good price,stock H Beams Height: 100mm-600mm, Width: 50mm-300mm Steel Grade: Q235 ... , S235JR, S275JR, S355JR Standard: GB/T11263-1998, EN10025, EN10034 Specification H×B×T1×T2Theory weightkg/mSpecificationH×B×T1×T2Theory weightkg/m100 ... .6582×300×2×17137300×150×6.5×937.3 Welded H Beam