Simone
他们说的都不准确，c型钢有个回弯，c180*70*20*2.5的重量应该是：
[（180+70+70+20+20）-4*2.5]*0.0025*7.85=6.87kg/m
也就是理论展开，再减去4倍的厚度，然后再乘厚度和密度
1,槽80x40x15x2.0,80,40,15,2,14.52,33.6,347,341600,77900,462,112900000
2,槽100x50x15x2.5,100,50,15,2.5,17.06,39.4,523,813400,171900,1090,352800000
3,槽120x50x20x2.5,120,50,20,2.5,17.06,40.3,598,1294000,209600,1246,660900000
4,槽120x60x20x3.0,120,60,20,3,21.06,48.7,765,1706800,373600,2296,1153200000
5,槽140x60x20x3.0,140,60,20,3,19.64,46.1,825,2454200,394900,2476,1589800000
6,槽150x50x20x1.6,150,50,20,1.6,15.24,27.2,422,1362930,141870,360,663830000
7,槽150x50x20x2.0,150,50,20,2,15.24,27.2,528,1703660,177330,700,629790000
8,槽150x50x20x2.5,150,50,20,2.5,15.24,27.2,660,2129580,221660,1380,1037230000
9,槽150x50x20x3.0,150,50,20,3,15.24,27.2,792,2555490,266000,2380,1244530000
10,槽150x60x20x1.6,150,60,20,1.6,19,45,451,1514130,214620,390,995870000
11,槽150x60x20x2.0,150,60,20,2,19,45,564,1892660,268520,750,1244840000
12,槽150x60x20x2.5,150,60,20,2.5,19,45,705,2365830,335650,1470,1556050000
13,槽150x60x20x3.0,150,60,20,3,19,45,846,2838990,402780,2540,1867260000
14,槽160x60x20x2.0,160,60,20,2,18.41,44,582,2195200,274190,780,1417250000
15,槽160x60x20x2.5,160,60,20,2.5,18.41,44,728,2744000,342730,1520,1771660000
16,槽160x60x20x3.0,160,60,20,2.5,18.41,44,874,3292800,411280,2620,2125880000
17,槽160x70x20x3.0,160,70,20,3,22.24,52.5,742,3736400,604200,2836,3070500000
18,槽180x60x20x2.0,160,60,20,2,17.33,42.1,619,2861760,284520,830,1804350000
19,槽180x60x20x2.5,160,60,20,2.5,17.33,42.1,774,3602200,355650,1610,2255440000
20,槽180x60x20x3.0,160,60,20,3,17.33,42.1,926,4322640,426780,2790,2706520000
21,槽180x70x20x2.0,180,70,20,2,21.1,50,687,3439300,451800,870,2554750000
22,槽180x70x20x2.2,180,70,20,2.2,21.1,50,752,3749000,489700,1254,2856540000
23,槽180x70x20x2.5,180,70,20,2.5,21.1,50,848,4202000,544200,1710,3193430000
24,槽180x70x20x3.0,180,70,20,3,21.1,50,983,4730880,609240,2950,3832120000
25,槽200x65x20x2.0,200,65,20,2,18.1,44,673,3850560,353370,900,2693490000
26,槽200x65x20x2.5,200,65,20,2.5,18.1,44,842,4813200,441720,1760,3366860000
27,槽200x65x20x3.0,200,65,20,3,18.1,44,1010,5775840,530060,3030,4040230000
28,槽200x70x20x2.0,200,70,20,2,20,44,727,4400400,467100,920,3185500000
29,槽200x70x20x2.2,200,70,20,2.2,20,48,796,4798700,506400,1200,3548520000
30,槽200x70x20x2.5,200,70,20,2.5,20,48,898,5382100,562700,1800,3981870000
31,槽200x70x20x3.0,200,70,20,3,20,48,1037,6027840,629540,3120,4778240000
32,槽220x70x20x2.5,220,70,20,2.5,19,46,910,6263600,539850,1900,4877150000
33,槽220x70x20x3.0,220,70,20,3,19,46,1092,7516320,647820,3280,5852580000
34,槽220x70x20x3.2,220,70,20,3.2,19,46,1165,8017410,691000,3980,6242670000
35,槽220x75x20x2.0,220,75,20,2,20.8,51,787,5744500,568800,1290,4109230000
36,槽220x75x20x2.2,220,75,20,2.2,20.8,51,862,6268500,617100,1760,4609302000
37,槽220x75x20x2.5,220,75,20,2.5,20.7,51,973,7037600,686600,1950,5707180000
38,槽220x75x20x3.0,220,75,20,3,20.7,51,1119,7621240,761170,3360,6848620000
39,槽220x75x20x3.2,220,75,20,3.2,20.7,51,1194,8342660,811910,4080,7305200000
40,槽250x70x20x2.5,250,70,20,2.5,17.6,44,978,8441830,560030,2040,6427600000
41,槽250x70x20x3.0,250,70,20,3,17.6,44,1174,10130190,672040,3530,7713120000
42,槽250x70x20x3.2,250,70,20,3.2,17.6,44,1252,10805540,716840,4280,8227320000
43,槽250x80x20x2.5,250,80,20,2.5,21,51,1024,9098080,766550,2140,8721010000
44,槽250x80x20x3.0,250,80,20,3,21,51,1229,10917690,919850,3690,10465300000
各行数字含义（以最后一行为例）：
槽250x80x20x3.0：
截面高度H=250mm；
截面宽度B=80mm；
卷边宽度C=20mm；
厚度t=3mm；
Y轴距离z0=21mm；
偏心距e=51mm；
截面面积A=1229mm2；
惯性矩Ix=10917690mm4；
惯性矩Iy=919850mm4；
截面模量Wx=87342mm3；
截面模量Wy=15591mm3；
回转半径ix=94.3mm；
回转半径iy=27.4mm；
抗扭惯性矩It=3690mm4；
扇形惯性矩Iw=10465300000mm4；
单位重量=A*7850/1000000=9.648Kg/m；
