熱軋不等邊角鋼 (GB 9788-88) B—長邊寬;b短邊寬;d—邊厚 型號 尺寸(mm) 理論重量 (kg/m) 型號 尺寸(mm) 理論重量 (kg/m) B b d B b d 2.5/1.6 25 16 3 0.912 11/7 110 70 6 8.350 4 1.176 7 9.656 3.2/2 32 20 3 1.171 8 10.946 4 1.522 10 13.476 4/2.5 40 25 3 1.484 12.5/8 125 80 7 11.066 4 1.936 8 12.551 4.5/2.8 45 28 3 1.687 10 15.474 4 2.203 12 18.330 5/3.2 50 32 3 1.908 14/9 140 90 8 14.160 4 2.494 10 17.475 5.6/3.6 56 36 3 2.153 12 20.724 4 2.818 14 23.908 5 3.466 16/10 160 100 10 19.872 6.3/4 63 40 4 3.185 12 23.592 5 3.920 14 27.247 6 4.638 16 30.835 7 5.339 18/11 180 110 10 22.273 7/4.5 70 45 4 3.570 12 26.464 5 4.403 14 30.589 6 5.218 16 34.649 7 6.011 20/12.5 200 125 12 29.761 (7.5/5) 75 50 5 4.808 14 34.436 6 5.699 16 39.045 8 7.431 18 43.588 10 9.098 8/5 80 50 5 5.005 6 5.935 7 6.848 8 7.745 9/5.6 90 56 5 5.661 6 6.717 7 7.756 8 8.779 10/6.3 100 63 6 7.550 7 8.722 8 9.878 10 12.142 10/8 100 80 6 8.350 7 9.656 8 10.946 10 13.476 注:帶括號的型號不推薦使用。