理论重量 24.143 kg/m
型号=18
h\mm=180
b\mm=94
d\mm=6.5
t\mm=10.7
r\mm=8.5
r1\mm=4.3
截面面积\cm^2=30.756
理论重量\kg/m=24.143
X-X\Ix\cm^4=1600
X-X\Wx\cm^3=185
X-X\ix\cm=7.36
X-X\Ix:Sx=15.4
Y-Y\Iy\cm^4=122
Y-Y\Wy\cm^3=26
Y-Y\iy\cm=2