Hot rolled structural steel H beam 1. Standard: GB, JIS, ASTM 2. Length: 5.8- ... .Grade: Q235B, Q235, Q345B, SS400, A36 Hot rolled structural steel H beamGrade: Q235B, Q235, Q345B, SS400, A36…Standard: JIS/ ASTM/ GB ... . 6.Package: in bulk or in bundle. Common Size Specification (h*b*t1*t2)Theoretic Weight(kg/m)Chinese Standard(GB ... *26210206.8900*300*16*28243240.1 hot rolled structural steel H beams