热轧等边角钢（GB/T9787-1988）(1)尺寸规格见表4-19。 表4-19热轧等边角钢的尺寸规格 尺寸/mm 参考数值 - 角钢号数 b X-X 截面面积/mm 理论质量/(kg/m) 外表面积/(m2/m) Ix/cm4 Xo-Xo Yo-Yo X1-X1 - - zo/cm ix/cm Wx/cm3 ixo/cm ixo/Cm Wxo/cm3 1yo/cm4 iyo/cm Wyo/cm3 Ix1/cm4 d r - 3 2 20 4 3.5 3 2.5 25 4 1.132 0.8 0.078 O.40 0.59 0.29 0.63 0.75 0.45 0.17 O.39 O.20 O.81 O.60 - 1.459 1.145 0.077 O.50 O.58 O.36 O.78 0.73 0.55 O.22 0.38 0.24 1.09 0. - 1.432 1.124 0.098 0.82 0.76 0.46 1.29 O.95 0.73 O.34 0.49 O.33 1.57 0.73 - 1.859 1.459 O.097 1.03 O.74 O.59 1.62 O.93 O.92 0.43 O.48 0.4 2.11 O.76 - 3 3 30 4 4.5 1.749 1.373 O.117 1.46 O.91 O.68 2.31 1.15 1.09 O.61 0.59 O.51 2.71 0.85 - 2.276 1.786 0.117 1.84 0.9 0.87 2.92 1.13 1.37 0.77 O.58 O.62 3.63 O. - 3.6 36 3 2.109 1.656 O.141 2.58 1.11 O.99 4.09 1.39 1.61 1.07 0.71 O.76 4.68 1 - 4 2.756 2.163 0.141 3.29 1.09 1.28 5.22 1.38 2.05 1.37 0.7 O.93 6.25 1.04 - 5 3.382 2.654 O.141 3.95 1.08 1.56 6.24 1.36 2.45 1.65 O.70 1.09 7.84 1.07 - 3 2.359 1.852 O.157 3.59 1.23 1.23 5.69 1.55 2.01 1.49 O.79 O.96 6.41 1.09 - 4 40 4 5 3.086 2.422 0.157 4.6 1.22 1.6 7.29 1.54 2.58 1.91 0.79 1.19 8.56 1.13 - 5 3.791 2.976 O.156 5.53 1.21 1.96 8.76 1.52 3.1 2.3 O.78 1.39 10.74 1.17 - 3 2.659 2.088 0.177 5.17 1.4 1.58 8.2 1.76 2.58 2.14 0. 1.24 9.12 1.22 - 4 4.5 45 5 5 3.486 2.736 O.177 6.65 1.38 2.05 10.56 1.74 3.32 2.75 0. 1.54 12.18 1.26 - 4.292 3.369 0.176 8.04 1.37 2.51 12.74 1.72 4 3.33 0.88 1.81 15.25 1.3 - 6 5.076 3.985 O.176 9.33 1.36 2.95 14.76 1.7 4. 3. 0.88 2.06 18.36 1.33 - 3 2.971 2.332 O.197 7.18 1.55 1.96 11.37 1.96 3.22 2.98 1 1.57 12.5 1.34 - 5 50 4 5.5 3.7 3.059 O.197 9.26 1.54 2.56 14.7 1.94 4.16 3.82 0.99 1.96 16.69 1.38 - 5 4.803 3.77 O.196 11.21 1.53 3.13 17.79 1.92 5.03 4. O.93 2.31 20.9 1.42 - 6 5.688 4.465 0.196 13.05 1.52 3.68 20.68 1.91 5.85 5.42 0.93 2.63 25.14 1.46 - 3 3.343 2.624 0.221 10.19 1.75 2.48 16.14 2.2 4.08 4.24 1.13 2.02 17.56 1.48 - 4 5.6 56 5 6 4.39 3.446 0.22 13.18 1.73 3.24 20.92 2.18 5.28 5.46 1.11 2.52 23.43 1.53 - 5.415 4.251 O.220 16.02 1.72 3.97 25.42 2.17 6.42 6.61 1.1 2.98 29.33 1.57 - 8 8.367 6.568 O.219 23.63 1.68 6.03 37.37 2.11 9.44 9. 1.09 4.16 47.24 1.68 - 4 4.978 3.907 0.248 19.03 1.96 4.13 30.17 2.46 6.78 7. 1.26 3.29 33.35 1.7 - 5 6.143 4.822 O.248 23.17 1.94 5.08 36.77 2.45 8.25 9.57 1.25 3.9 41.73 1.74 - 6.3 63 6 7 7.288 5.721 O.247 27.12 1.93 6.oo 43.03 2.43 9.66 11.2 1.24 4.46 50.14 1.78 - 8 9.515 7.469 O.247 34.46 1.9 7.75 54.56 2.4 12.25 14.33 1.23 5.47 67.11 1.85 - 1O 11.657 151 O.246 41.09 1.88 9.39 .85 2.36 14.56 17.33 1.22 6.36 84.31 1.93 - 4 7 70 5 8 5.57 4.372 0.275 26.39 2.18 5.14 41.8 2.76 8.44 1O.99 1.4 4.17 45.74 1.86 - 6.875 5.397 O.275 32.21 2.16 6.32 51.08 2.73 10.32 13.34 1.39 4.95 57.21 1.91 - 6 8.16 6.406 O.275 37.77 2.15 7.48 59.93 2.71 12.11 15.61 1.38 5.67 68.73 1.95 - 7 9.424 7.398 O.275 43.09 2.14 8.59 68.35 2.69 13.81 17.82 1.38 6.34 80.29 1.99 - 8 10.667 8.373 0.274 48.17 2.12 9.68 76.37 2.68 15.43 19.98 1.37 6.98 91.92 2.03 - 5 7.412 5.818 0.295 39.97 2.33 7.32 63.3 2.92 11.94 16.63 1.5 5.77 70.56 2.04 - 6 8.797 6.905 O.294 46.95 2.31 8. 74.38 2.9 14.02 19.51 1.49 6.67 84.55 2.07 - -7.5 75 7 10.16 7.976 O.294 53.57 2.3 9.93 84.96 2. 16.02 22.18 1.48 7.44 98.71 2.11 - 8 11.503 9.03 O.294 59.96 2.28 11.2 95.07 2.88 17.93 24.86 1.47 8.19 112.97 2.15 - 10 9 14.126 11.0 0.293 71.98 2.26 13. 113.92 2.84 21.48 30.05 1.46 9.56 141.71 2.22 - 5 7.912 6.211 O.315 48.79 2.48 8.34 77.33 3.13 13.67 20.25 1.6 6.66 85.36 2.15 - 6 8 80 7 9.397 7.376 O.314 57.35 2.47 9.87 90.98 3.11 16.08 23.72 1.59 7.65 102.5 2.19 - 10.86 8.525 0.314 65.58 2.46 11.37 104.07 3.1 18.4 27.09 1.58 8.58 119.7 2.23 - 8 12.303 9.658 0.314 73.49 2.44 12.83 116.6 3.08 20.61 30.39 1.57 9.46 136.97 2.27 - 10 15.126 11.874 0.313 88.43 2.42 15. 140.09 3.04 24.76 36.77 1.56 11.08 171.74 2.35 - 6 1O.637 8.35 O.354 B2.77 2.79 12.61 131.26 3.51 20.63 34.28 1.8 9.95 145.87 2.44 - 7 12.301 9.656 O.354 94.83 2.78 14.54 150.47 3.5 23. 39.18 1.78 11.19 170.3 2.48 - 9 90 8 10 13.944 10.946 O.353 106.47 2.76 16.42 168.97 3.48 26.55 43.97 1.78 12.35 194.8 2.52 - 1O 17.167 13.476 0.353 128.58 2.74 20.07 203.9 3.45 32.04 53.26 1.76 14.52 244.07 2.59 - 12 20.306 15.94 O.352 149.22 2.71 23.57 236.21 3.41 37.12 62.22 1.75 16.49 293.76 2.67 - 6 11.932 9.366 O.393 114.95 3.1 15.68 181.98 3.9 25.74 47.92 2 12.69 200.07 2.67 - 7 13.796 10.83 O.393 131.86 3.09 18.1 208.97 3. 29.55 54.74 1.99 14.26 233.54 2.71 - 8 1O 100 10 12 15.638 12.276 0.393 148.24 3.08 20.47 235.07 3.88 33.24 61.41 1.98 15.75 267.09 2.76 - 19.261 15.12 0.392 179.51 3.05 25.06 284.68 3.84 40.26 74.35 1.96 18.54 334.48 2.84 - 12 22.8 17.8 O.391 208.9 3.03 29.48 330.95 3.81 46.8 86.84 1.95 21.08 402.34 2.91 - 14 26.256 20.611 O.391 236.53 3 33.73 374.06 3.77 52.9 99 1.94 23.44 470.75 2.99 - 16 29.627 23.257 0.39 262.53 2.98 37.82 414.16 3.74 58.57 110. 1.94 25.63 539.8 3.06 - 7 15.196 11.928 0.433 177.16 3.41 22.05 280.94 4.3 36.12 73.38 2.2 17.51 310. 2.96 - 8 17.238 13.532 0.433 199.46 3.4 24.95 316.49 4.28 40.69 82.42 2.19 19.39 355.2 3.01 - 11 110 10 21.261 16.69 0.432 242.19 3.38 30.6 384.39 4.25 49.42 99.98 2.17 22.91 444.65 3.09 - 12 25.2 19.782 0.431 282.55 3.35 36.05 448.17 4.22 57.62 116.93 2.15 26.15 534.6 3.16 - 14 29.056 22.809 0.431 320.71 3.32 41.31 508.01 4.18 65.31 133.4 2.14 29.14 625.16 3.24 - 8 19.750 15.504 O.492 297.03 3.88 32.52 470. 4.88 53.28 123.16 2.5 25.86 521.01 3.37 - 10 12.5 125 12 14 14 24.373 19.133 O.491 361.67 3.85 39.97 573. 4.85 .93 149.46 2.48 30.62 651.93 3.45 - 28.912 22.696 0.491 423.16 3.83 41.17 671.44 4.82 75.96 174.88 2.46 35.03 783.42 3.53 - 33.367 26.193 O.490 481.65 3.8 54.16 763.73 4.78 86.41 199.57 2.45 39.13 915.61 3.61 - 10 14 140 12 27.373 21.488 0.551 514.65 4.34 50.58 817.27 5.46 82.56 212.04 2.78 39.2 915.11 3.82 - 32.512 25.522 0.551 603.68 4.31 59.8 958.79 5.43 96.85 248.57 2.76 45.02 1099.28 3.9 - 14 37.567 29.49 O.550 688.81 4.28 68.75 1093.56 5.4 110.47 284.06 2.75 50.45 1284.22 3.98 - 16 42.539 33.393 O.549 770.24 4.26 77.46 1221.81 5.36 123.42 318.67 2.74 55.55 1470.07 4.06 - 1O 31.502 24.729 0.63 779.53 4.98 66.7 1237.3 6.27 109.36 321.76 3.2 52.76 1365.33 4.31 - 12 16 160 14 16 37.441 29.391 O.630 916.58 4.95 78.98 1455.68 6.24 128.67 377.49 3.18 60.74 1639.57 4.39 - 43.296 33.987 O.629 1048.36 4.92 90.95 1665.02 6.2 147.17 431.7 3.16 68.24 1914.68 4.47 - 16 49.067 38.518 0.629 1175.08 4. 102.63 1865.57 6.17 1. 484.59 3.14 75.31 2190.82 4.55 - 12 42.241 33.159 0.71 1321.35 5.59 100.82 2100.1 7.05 165 542.61 3.58 78.41 2332.8 4. - 14 18 180 16 48.6 38.383 0.709 1514.48 5.56 116.25 2407.42 7.02 1.14 621.53 3.58 88.38 2723.48 4.97 - 55.467 43.542 0.709 1700.99 5.54 131.13 2703.37 6.98 212.4 698.6 3.55 97.83 3115.29 5.05 - 18 61.955 48.634 0.709 1875.12 5.5 145. 2988.24 6.94 234.78 762.01 3.51 105.14 3502.43 5.13 - 14 20 200 16 18 54.2 42.4 0.788 2103.55 6.2 144.7 3343.26 7.82 236.4 863.83 3.98 111.82 3734.1 5.46 - 62.013 48.68 0.788 2366.15 6.18 163.65 3760. 7.79 265.93 971.41 3.96 123.96 4270.39 5.54 - 18 69.301 54.401 O.787 2620. 6.15 182.22 41.54 7.75 294.48 1076.74 3.94 135.52 4808.13 5.62 - 20 76.505 60.056 0.787 2867.3 6.12 200.42 4554.55 7.72 322.06 1180.04 3.93 146.55 5347.51 5.69 - 24 90.661 71.168 O.785 3338.25 6.07 236.17 5294.97 7. 374.41 1381.53 3.9 166.55 57.16 5.87 - 注：截面图中的r1=1/3d及表中r值的数据用于孔型设计，不做交货条件。 (2)允许偏差见表4-20。 表4-20热轧等边角钢的允许偏差和长度 角钢号数 边宽b/mm 边厚d/mm 长度/m 角钢号数 边宽b/mm 边厚d/mm 长度/m 2～5.66.3～9 ±O.8士1.2 ±0.4士O.6 4～124～12 10～1416～20 ±1.8土2.5 ±0.7士1.O 4～196～19
