Steel H beam Length: 6m---12m, 100#---300#, SS400, Q195-235, etc. various of standards, strong and durable enoughH beams come from SS400, Q235, etc. the theoretical weight is subject to JIS or European standard.The length is 6m,9m,12m, width is from 50mm to 150mm, thickness is from 4.5mm to 10.2mm.