(1)尺寸规格见表 640-表 645。 表 6-40 冷拔无缝方形钢管的尺寸规格表 6-40 冷拔无缝方形钢管的尺寸规格 基本尺寸 AS mm 截面面积 Fcm2理论质量 G(kgm)惯性矩 Jx=Jycm4截面系数 Wx=Wycm3 12 O.8 1.0 O.348 0 423 O.273 0.332 O.0739 O.0873 O.123 O.146 14 1.0 1.5 0.503 O.712 O.394 O.559 0.144 O.192 O.206 0.274 16 1.O 1.5 O.583 O.832 O.458 0.653 O.222 O.300 O.278 O.374 18 1.O 1.5 2.O 0.663 0.952 1.21 O.521 0.747 O.952 O.324 O.442 0.535 O.360 O.491 0.595 20 1.0 1.5 2.0 2.5 O.743 1.07 1.37 1.64 0.583 O.841 1.08 1.29 O.453 0.624 O.763 O.874 0 453 O.624 O.763 O.874 22 1 1.5 2 O.823 1.19 1.53 O.646 O.936 1.20 O.612 0.850 1.05 O.556 O.773 O.953 2.51.841.451.211.10 25 2.5 3 2.14 2.49 1.68 1.95 1.86 2.08 1.49 1.57 30 2.5 3 3.5 4 2.64 3.01 3.50 3.89 2.08 2.42 2.75 3.05 3.41 3.86 4.25 4.58 2.27 2.58 2.83 3.05 32 2.5 3 3.5 2.84 3.33 3 78 2.23 2.61 2.97 4.21 4.79 5.29 2.63 3.00 3.31 3244.213.305.733.58 35 2.5 3 3.5 4 5 3.14 3.69 4.20 4.68 5.58 2.47 2.89 3.30 3.68 4.38 5.54 6.45 7.16 7.78 8.79 3.22 3.68 4.09 4.45 5.02 36 2.5 3 3.5 4 5 3.24 3.81 4.3_4 4.85 5.75 2.55 2.99 3.4l 3.8l 4.53 6.18 7.07 7.87 8.56 9.70 3.43 3.93 4.37 4.76 5.39 40 2.5 3 3.5 4 5 6 3.64 4.29 4.90 5.49 6.58 7.55 2.86 3.37 3.85 4.3l 5.16 5.93 8.68 9.98 11.16 12.21 13.98 15.34 4.34 4.99 5.58 6.1l 6.99 7.67 42 2.5 3 3.84 4.53 3.02 3.55 10.15 11.70 4.83 5.57 3.5 4 5 6 5.18 5.81 6.98 8.03 4.07 4.56 5.48 6.30 13.10 14.37 16.56 18.22 6.24 6.84 7.87 8.58 45 3.5 4 5 5.60 6.23 7.58 4.40 4.94 5.95 16.43 18.07 20.90 7.30 8.03 9.29 45 6 7 8 8.75 9.81 10.8 6.87 7.80 8.44 23.19 24.97 26.30 lO.31 11.10 11.59 50 4 5 6 7 8 7.09 8.58 9.95 11.21 12.35 5.56 6.73 7.8l 8.80 9.70 25.56 29.81 33.35 36.23 38.51 10.22 11.93 13.34 14.49 15.41 55 4 5 6 7 8 7.89 9.58 11.15 12.51 13.95 6.19 7.52 8.75 9.90 10.95 34.87 40.95 46.13 50.47 54.04 12.58 14.89 16.77 18.35 19.65 60 4 5 6 7 8 8.69 10.58 12.35 14.0l 15.55 6.82 8.30 9.69 11.00 12.21 46.21 54.57 61.82 68.03 73.28 15.4 18.19 20.61 22.68 24.43 65 4 5 6 7 9.49 11.58 13.55 15.41 7.45 9.07 10.64 12.10 59.78 70.92 80.72 89.27 18.39 21.82 24.84 27.46 817.1513.4796.6429.74 70 4 5 6 10.29 12.58 14.7 8.08 9.87 11.58 75.78 90.26 103.1 21.65 25.79 29.47 70 7 8 16.81 18.75 13.19 14.72 114.5 124.5 32.72 35.57 75 4 5 6 7 8 11.09 13.58 15.95 18 21 20.35 8.70 10.66 12.52 14.29 15.98 94.4 112.8 129.4 144.2 157.3 25.17 30.08 34.50 38.44 41.94 80 4 5 6 7 8 11.89 14.58 17.15 19.61 21.95 9.33 11.44 13.46 15.39 17.23 115.9 138.9 159.7 178.5 195.4 28.96 34.72 39.93 44.63 48.85 5 6 7 8 16.98 20.03 22.97 25.79 13.33 15.72 18.03 20.25 217.1 251.1 282.3 310.9 47.19 54.59 61.38 67.58 100 5 6 7 8 18.58 21.95 25.21 28.35 14.58 17.23 19.79 22.26 282.8 328.2 370.2 408.9 56.57 65.54 74.04 81.78 110 7 8 9 28.01 31.55 34.98 21.99 24.77 27.46 503.4 557.9 608.4 91.54 101.4 11O.6 注：理论质量计算 G=0.0157S(A+A 一 2.8584S) 式中 G每米钢管的质量(kgm)； A方形钢管的边长(mm)； S方形钢管的公称壁厚(mm). 以钢管 R=1.5S 时，钢的密度为 7.85gcm3 的计算公式。 表 6-41 冷拔无缝矩形钢管的尺寸规格表 6-41 冷拔无缝矩形钢管的尺寸规格 基本尺寸惯性矩截面系数 ABSJxJyWxwy mm 截面面积 F cm2 理论质量 G (kgm) cm4cm3 lO5 0.8 l O.203 O.243 O.160 O.191 O.0074 O.0082 O.0239 O.0270 0.0297 0.0329 0.0478 0.0547 5 0.8 l 0.235 0.283 0.185 0.222 O.0088 0.0099 O.0388 O.0449 O.0354 O.0395 O，0646 O.0748 12 6 O.8 l O.251 O.303 0.197 0.238 0.0139 0.0157 O.0438 0.0509 O.0462 O.0524 0.0730 O.0849 6 0.8 1 1.5 0.283 0.343 O.471 O.223 O.269 O.370 0.0160 O.0182 O.0215 0.0654 0.0767 O.0973 0.0535 O.0608 O.0715 O.0935 O.110 O.139 7 0.8 l 1.5 0.299 O.363 O.501 O.235 0.285 O.394 0.0233 O.0268 0.0324 O.0724 O.0852 0.109 O.0665 0.0765 O.0927 O.104 O.122 0.156 14 10O.8O.347O.273O.0545O.0934O.1090.133 l 1.5 2 O.423 0.591 0.73l O.332 0.464 0.574 O.0640 0.0818 0.0925 O.111 O.144 O.167 O.128 O.164 O.185 O.158 O.206 O.238 156 0.8 1 1.5 2 O.299 O.363 O.501 O.611 O.235 O.285 O.394 O.480 0.0171 0.0195 O.0230 O.0240 0.0784 O.0922 O.118 0.133 O.0571 O.0651 O.0768 O.0799 0.105 O.123 O.157 0.177 8 O.8 l1.5 2 O.347 O.423 0.59l O.731 0.273 0.332 O.464 0.574 0.0362 0.042l O.0525 0.0579 0.111 0.132 O.173 O.200 O.0905 0.105 O.131 O.145 O.139 O.165 O.216 0.250 16 12 0.8 1 1.5 2 O.411 0.503 O.711 O.89l O.323 0.395 0.559 O.700 O.0941 O.112 0.147 O.170 0.148 0.177 O.236 0.279 0.157 0.186 O.244 0.284 O.186 O.222 O.295 0.349 9 0.8 1 1.5 2 O.395 O.483 O.681 0.851 0.310 O.379 O.535 0.668 0.0532 O.0624 O.0796 O.0897 O.162 O.194 0.258 O.304 0.118 0.139 O.177 O.199 0.180 O.215 O.287 0.337 10 O.2 1 1.5 2 0.411 O.503 0.711 0.89l 0.323 O.395 O.559 0.700 O.0680 0.0802 O.1037 O.119 0.174 0.208 O.278 0.329 0.136 O.161 0.207 0.237 0.194 O.23l 0.309 O.366 18 14 O.8 l 1.5 2 0.475 0.583 0.83l 1.051 0.373 O.458 0.653 O.825 O.149 O.178 O.239 O.283 0.222 O.266 O.360 0.432 0.213 O.255 O.341 0.404 O.246 O.296 O.400 O.480 208 0.8 1 0.411 0.503 O.323 0.395 O.0445 0.0520 O.197 O.236 O.111 O.130 O.197 0.236 1.5 2 0.711 O.891 O.559 0.700 O.0654 O.0728 0.315 O.373 O.164 O.182 O.315 O.373 10 0.8 1 1.5 2 O.443 0.543 0.771 0.971 O.348 0.426 0.606 O.763 O.0748 O.0884 O.115 O.132 0.227 O.272 0.367 O.438 0.150 O.177 0.229 O.263 0.227 0.272 0.367 O.438 12 0.8 1 1.5 2 2.5 0.475 0.583 O.831 1.05 1.24 O.373 O.458 0.653 O.825 0.976