方钢规格型号尺寸有15*15，20*20，25*25，30*30，35*35，40*40，45*45，50*50，55*55*（0.5-6），60*60，65*65，70*70，75*75，80*80，85*85，90*90，95*95，100*100，105*105，110*110，115*115，120*120，125*125，130*130*（1.5-10），140*140，150*150，160*160，170*170，180*180，190*190，200*200，210*210，220*220，230*230，240*240，250*250，260*260，270*270，280*280，290*290，300*300-500*500*（3-14）。
(1)尺寸规格见表6—40-表6—45。
表6-40冷拔无缝方形钢管的尺寸规格
基本尺寸 | 截面面积F／cm2 | 理论质量G／(kg／m) | 惯性矩Jx=Jy／cm4 | 截面系数Wx=Wy／cm3 | |
A | S | ||||
mm | |||||
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 2.5 | O.823 1.19 1.53 1.84 | O.646 O.936 1.20 1.45 | O.612 0.850 1.05 1.21 | O.556 O.773 O.953 1.10 |
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 |
32 | 4 | 4.21 | 3.30 | 5.73 | 3.58 |
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 3.5 4 5 6 | 3.84 4.53 5.18 5.81 6.98 8.03 | 3.02 3.55 4.07 4.56 5.48 6.30 | 10.15 11.70 13.10 14.37 16.56 18.22 | 4.83 5.57 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 8 | 9.49 11.58 13.55 15.41 17.15 | 7.45 9.07 10.64 12.10 13.47 | 59.78 70.92 80.72 89.27 96.64 | 18.39 21.82 24.84 27.46 29.74 |
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(kg／m)。
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7.85g／cm3的计算公式。
表6-41冷拔无缝矩形钢管的尺寸规格
基本尺寸 | 截面面积F ／cm2 | 理论质量G ／(kg／m) | 惯性矩 | 截面系数 | ||||
A | B | S | Jx | Jy | Wx | wy | ||
mm | cm4 | cm3 | ||||||
lO | 5 | 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 |
12 | 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 |
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 | |
14 | 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 | |
10 | O.8 l 1.5 2 | O.347 O.423 0.591 0.73l | O.273 O.332 0.464 0.574 | O.0545 O.0640 0.0818 0.0925 | O.0934 O.111 O.144 O.167 | O.109 O.128 O.164 O.185 | 0.133 O.158 O.206 O.238 | |
15 | 6 | 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 |
16 | 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 |
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 | |
18 | 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 | |
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 | |
20 | 8 | 0.8 1 1.5 2 | 0.411 0.503 0.711 O.891 | O.323 0.395 O.559 0.700 | O.0445 0.0520 O.0654 O.0728 | O.197 O.236 0.315 O.373 | O.111 O.130 O.164 O.182 | O.197 0.236 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 | O.114 O.136 0.180 0.211 0.23l | O.256 0.308 0.418 O.503 0.565 | O.190 0.226 O.300 0.352 0.385 | 0.256 0.308 O.418 O.503 0.565 | |
22 | 9 | O.8 l 1.5 2 2.5 | O.459 O.563 O.801 1.011 1.19 | O.361 O.442 O.629 O.794 O.936 | 0.0640 0.0753 O.0967 O.110 O.117 | O.27l O.325 0.440 O.527 0.589 | O.142 O.167 O.215 O.244 0.259 | 0.246 0.295 0.400 O.479 O.536 |
14 | O.8 l 1.5 2 2.5 | 0.539 0.663 O.951 1.21 1.44 | O.423 0.520 O.746 O.951 1.13 | O.177 O.212 0.286 O.34l 0.381 | O.361 O.435 0.598 O.727 O.828 | O.253 O.303 0.408 0.487 O.544 | 0.328 0.396 0.543 O.66l O.753 | |
24 | 12 | O.8 1 1.5 2 2.5 | O.539 O.663 0.951 1.2l 1.44 | O.423 O.520 O.747 O.951 1.13 | O.134 O.160 O.213 O.252 O.277 | 0.403 0.487 0.669 O.815 O.928 | 0.224 O.267 O.355 0.419 O.462 | O.336 O.406 O.557 0.679 0.774 |
25 | lO | O.8 1 1.5 2 2.5 | O.523 O.643 O.921 1.17 1.39 | O.411 0.505 O.723 O.920 1.09 | 0.0918 0.109 O.142 O.164 O.178 | 0.399 O.482 0.660 O.802 O.910 | 0.184 O.217 0.284 O.329 O.355 | O.320 O.386 O.528 0.642 0.728 |
15 | 1 1.5 2 2.5 | O.743 1.07 1.37 1.64 | O.583 0.84l 1.08 1.29 | O.279 O.379 0.457 O.515 | 0.626 0.868 1.07 1.23 | O.372 O.505 0.609 O.687 | 0.501 O.6914 O.854 O.983 | |
28 | 11 | 1 1.5 2 2.5 | 0.723 1.04 1.33 1.59 | 0.567 O.818 1.05 1.25 | O.151 0.200 O.235 0.257 | 0.683 0.945 1.16 1.33 | O.274 0.363 O.426 O.468 | O.488 O.675 O.328 O.95l |
14 | l 1.5 2 2.5 | 0.783 1.13 1.45 1.74 | O.615 O.888 1.14 1.37 | O.263 O.356 O.428 0.482 | 0.792 1.10 1.36 1.58 | O.376 O.509 O.612 O.688 | 0.566 0.788 O.973 1.13 | |
16 | 1 1.5 2 2.5 | O.823 1.19 1.53 1.84 | O.646 0.935 1.20 1.45 | 0.357 0.489 O.595 0.676 | O.865 1.2l 1.50 1.74 | 0.447 O.612 O.743 0.845 | O.618 O.863 1.07 1.24 | |
28 | 22 | 1 1.5 2 2.5 3 3.5 | O.943 1.37 1.77 2.14 2.49 2.80 | 0.740 1.08 1.39 1.68 1.95 2.20 | O.744 1.04 1.29 1.50 1.67 1.80 | 1.08 1.52 1.90 2.23 2.50 2.72 | 0.677 0.945 1.17 1.36 1.52 1.64 | O.774 1.09 1.36 1.59 1.79 1.94 |
30 | 12 | 1.5 2 2.5 3 | 1.13 1.45 1.74 2.O1 | 0.888 1.14 1.37 1.57 | 0.263 0.312 0.347 O.369 | 1.19 1.48 1.7l 1.89 | 0.439 O.520 0.578 O.614 | 0.796 O.984 1.14 1.26 |
32 | 13 | 1.5 2 2.5 3 | 1.22 1.57 1.90 2.19 | O.959 1.23 1.49 1.72 | O.339 O.406 O.454 O.488 | 1.48 1.84 2.14 2.39 | 0.521 O.624 O.699 0.75l | O.927 1.15 1.34 1.49 |
16 | 1.5 2 2.5 3 | 1.3l 1.69 2.04 2.37 | 1.03 1.33 1.60 1.86 | 0.553 0.674 0.768 O.840 | 1.69 2.11 2.47 2.77 | 0.691 O.842 O.961 1.05 | 1.07 1.32 1.54 1.73 | |
25 | 1.5 2 2.5 3 | 1.58 2.05 2.49 2.91 | 1.21 1.61 1.96 2.28 | 1.57 1.97 2.31 2.60 | 2.32 2.92 3.45 3.91 | 1.26 1.58 1.85 2.08 | 1.45 1.83 2.16 2.44 | |
35 | 14 | 1.5 2 2.5 3 3.5 | 1.34 1.73 2.09 2.43 2.73 | 1.05 1.36 1.64 1.90 2.14 | O.439 0.530 0.599 O.649 O.683 | 1.96 2.45 2.86 3.2l 3.50 | O.627 0.757 0.856 0.928 0.975 | 1.12 1.40 1.64 1.84 2.00 |
36 | 18 | 1.5 2 2.5 3 3.5 | 1.49 1.93 2.34 2.73 3.08 | 1.17 1.52 1.84 2.14 2.42 | 0.811 0.998 1.15 1.27 1.37 | 2.46 3.10 3.65 4.13 4.53 | 0.901 1.11 1.28 1.41 1.52 | 1.37 1.72 2.03 2.29 2.51 |
28 | 2 | 2.33 | 1.83 | 2.85 | 4.26 | 2.04 | 2.36 | |
37 | 15 | 2 2.5 3 3.5 4 | 1.85 2.24 2.6l 2.94 3.25 | 1.45 1.76 2.05 2.31 2.55 | O.661 0.753 O.821 O.870 O.901 | 2.96 3.47 3.9l 4.28 4.58 | O.881 1.00 1.09 1.16 1.20 | 1.60 1.88 2.12 2.31 2.48 |
40 | 16 | 2 2.5 3 3.5 4 | 2.01 2.44 2.85 3.22 3.57 | 1.58 1.92 2.23 2.53 2.80 | O.832 O.953 1.05 1.12 1.16 | 3.77 4.46 5.05 5.55 5.97 | 1.04 1.19 1.3l 1.40 1.46 | 1.89 2.23 2.52 2.77 2.98 |
20 | 2 2.5 3 3.5 4 | 2.17 2.64 3.09 3.50 3.86 | 1.70 2.07 2.42 2.75 3.05 | 1.41 1.64 1.83 1.99 2.11 | 4.35 5.16 5.87 6.48 7.0l | 1.41 1.64 1.83 1.99 2.11 | 2.18 2.58 2.93 3.24 3.50 | |
25 | 2 2.5 3 3.5 4 | 2.37 2.89 3.39 3.85 4.29 | 1.86 2.27 2.66 3.02 3.36 | 2.39 2.82 3.18 3.49 3.75 | 5.07 6.04 6.90 7.65 8.3l | 1.91 2.25 2.54 2.79 2.99 | 2.54 3.02 3.45 3.83 4.15 | |
42 | 30 | 2 | 2.65 | 2.08 | 3.83 | 6.53 | 2.55 | 3.11 |
45 | 30 | 2 2.5 3 3.5 4 | 2.77 3.39 3.99 4.55 5.09 | 2.18 2.66 3.13 3.57 3.99 | 4.07 4.83 5.51 6.11 6.62 | 7.73 9.26 10.65 11.90 13.01 | 2.7l 3.22 3.57 4.07 4.42 | 3.44 4.12 4.73 5.29 5.78 |
48 | 30 | 2 2.5 | 2.89 3.54 | 2.27 2.78 | 4.30 5.12 | 9.06 10.87 | 2.87 3.41 | 3.77 4.53 |
50 | 32 | 2 2.5 3 | 3.05 3.74 4 41 | 2.40 2.94 3.46 | 5.18 6.18 7.07 | 10.48 12.60 14.55 | 3.24 3.86 4.42 | 4.19 5.04 5.82 |
55 | 38 | 2 2.5 3 3.5 4 | 3.49 4.29 5.07 5.81 6.53 | 2.74 3.37 3.98 4.56 5.12 | 8.36 10.04 11.58 12.97 14.23 | 14.93 18.03 20.91 23.57 26.01 | 4.40 5.29 6.09 6.83 7 49 | 5.43 6.56 7.60 8.57 9.46 |
60 | 40 | 3.5 4 5 | 6.30 7.09 8.57 | 4.95 5.56 6.73 | 15.84 17.42 20.15 | 30.41 33.66 39.41 | 7.92 8.7l 10.07 | 10.14 11.22 13.14 |