Industrial Channel Steel

Executive StandardGB/T706-2008Dimensions and Permissible Variations of Double T Steel and Channel SteelHeight hHeightPermissible VariationIllustration<100+1.5100 <200+2.0200 <400+3.0≥400+4.0Leg Widthb<100+1.5100 <150+2.0150 <200+2.5200 <300+3.0300 <400+3.5≥400+4.0Waist Thicknessd<100+0.4100 <200+0.5200 <300+0.7300 <400+0.8≥400+0.9Outer Edge Slope TT≤1.5%b 2T≤2.5%bWaist Bending WW≤0.15dBendingDouble T SteelBending Per Meter ≤2mm Total Bending ≤0.20% of the Overall Length Applicable for big Up-Down, and Left-Right Bendingchannel steelBending Per Meter ≤3mm Total Bending ≤0.30% of the Overall Length