... 900*300mm, details please check below4.length6m or 12m5.applicationused for machinery, procesing, structure building, automobile manufacturing, shipbuilding, electric ... ,400*200, 446*199, 450*200, 496*199, 500*200mmH BEAMS GradeCHEMICAL COMPOSITION %MECHANIC PROPERTYCSiMnPSBYield Strength (N/mm) ... 0.490.022~0.0260.021~0.0280.000827541533.5OKRemark H-waist height ; B-leg breadth ; T1-waist thickness ; T2 ...