... steel 1.Material: Q235,Q345,SS400,Q195,SS400,ASTMA362.Specification: 5 -40# 3.Length: 6M 9M 12M4.Standard:GB,ASTM,DIN ... ,JIS,BS 5.Thickness:4.5mm~14.5mm 6.Size:50mm*37mm~400mm ... (mm)Flange thickness(mm)Weight (kg/m)50*253.00~5.006.002.37~3.4675*403.807.005.3075*404 ...