等高线(教师版)的.doc
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热轧等边角铁规格重量表/每米 角钢号数 尺寸（毫米） 截断面积 （厘米2） 理论重量 （公斤/米） 表面积 （米2/米） A×b T r 2 20 3 4 3.5 1.132 1.459 0.889 1.145 0.078 0.077 2.5 25 3 4 3.5 1.432 1.859 1.124 1.459 0.098 0.097 3.0 30 3 4 4.5 1.749 2.276 1.373 1.786 0.117 0.117 3.6 36 3 4 5 4.5 2.109 2.756 3.382 1.656 2.163 2.654 0.141 0.141 0.141 4.0 40 3 4 5 5 2.359 3.086 3.791 1.852 2.422 2.976 0.157 0.157 0.156 4.5 45 3 4 5 6 5 2.659 3.486 4.292 5.076 2.088 2.736 .369 3.985 0.177 0.177 0.176 0.176 5.0 50 3 4 5.5 2.971 3.897 2.332 3.059 0.197 0.197 5.0 50 5 6 5.5 4.803 5.688 3.770 4.465 0.196 0.196 5.6 56 3 4 5 8 6.0 3.343 4.390 5.415 8.367 2.624 3.446 4.251 6.568 0.221 0.220 0.220 0.219 6.3 63 4 5 6 8 10 7 4.978 6.143 7.288 9.515 11.657 3.907 4.822 5.721 7.469 9.151 0.248 0.248 0.247 0.247 0.246 7 70 4 5 6 7 8 8 5.570 6.875 8.160 9.424 10.667 4.372 5.397 6.406 7.398 8.373 0.275 0.275 0.275 0.275 0.274 7.5 75 5 6 7 8 10 9 7.367 8.797 10.160 11.503 14.126 5.818 6.905 7.976 9.030 11.089 0.295 0.294 0.294 0.294 0.293 8 80 5 6 7 8 10 9 7.912 9.397 10.860 12.303 15.126 6.211 7.376 8.525 9.658 11.874 0.315 0.314 0.314 0.314 0.313 9 90 6 7 8 10 12 10 10.637 12.301 13.944 17.167 20.306 8.350 9.656 10.946 13.476 15.940 0.354 0.354 0.353 0.353 0.352 10 100 6 7 8 10 12 11.932 13.796 15.638 19.261 9.366 10.830 12.276 15.120 0.393 0.393 0.393 0.392 10 100 12 14 16 12 22.800 26.256 29.627 17.898 20.611 23.257 0.391 0.391 0.390 11 110 7 8 10 12 14 12 15.196 17.238 21.261 25.200 29.056 11.928 13.532 16.690 19.782 22.809 0.433 0.433 0.432 0.431 0.431 12.5 125 8 10 12 14 14 11.932 13.796 15.638 19.261 15.504 19.133 22.696 26.193 0.492 0.491 0.491 0.490 14 140 10 12 14 16 14 27.373 32.512 37.567 42.539 21.488 25.522 29.490 33.393 0.551 0.551 0.550 0.549 16 160 10 12 14 16 16 31.502 37.441 43.296 49.067 24.729 29.391 33.987 38.518 0.630 0.630 0.629 0.629 18 180 12 14 16 18 16 42.241 48.896 55.467 61.955 33.159 38.383 43.542 48.634 0.710 0.709 0.709 0.708 20 200 14 16 18 20 24 18 54.642 62.013 69.301 76.505 90.661
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