尺 寸 |
特 性** | |||||||||
公稱*尺寸 |
壁厚 |
每英尺重量 |
截面積 |
X-X軸 |
Y-Y軸 | |||||
Ix |
Sx |
rx |
Iy |
Sy |
ry | |||||
ln. |
ln. |
Lb. |
ln.2 |
ln.4 |
ln.3 |
ln. |
ln.4 |
ln.3 |
ln. | |
6×3 |
.3750 |
3/8 |
19.82 |
5.83 |
23.8 |
7.92 |
2.02 |
7.78 |
5.19 |
1.16 |
|
.3125 |
5/16 |
16.96 |
4.98 |
21.1 |
7.03 |
2.06 |
6.98 |
4.65 |
1.18 |
|
.2500 |
1/4 |
13.91 |
4.09 |
17.9 |
5.98 |
2.09 |
6.00 |
4.00 |
1.21 |
|
.1875 |
3/16 |
10.70 |
3.14 |
14.3 |
4.76 |
2.13 |
4.83 |
3.22 |
1.24 |
6×2 |
.3750 |
3/8 |
17.27 |
5.08 |
17.8 |
5.94 |
1.87 |
2.84 |
2.84 |
.748 |
|
.3125 |
5/16 |
14.83 |
4.36 |
16.0 |
5.34 |
1.92 |
2.62 |
2.62 |
.775 |
|
.2500 |
1/4 |
12.21 |
3.59 |
13.8 |
4.60 |
1.96 |
2.31 |
2.31 |
.802 |
|
.1875 |
3/16 |
9.42 |
2.77 |
11.1 |
3.70 |
2.00 |
1.90 |
1.90 |
.829 |
5×4 |
.3750 |
3/8 |
19.82 |
5.83 |
18.7 |
7.50 |
1.79 |
13.2 |
6.58 |
1.50 |
|
.3125 |
5/16 |
16.96 |
4.98 |
16.6 |
6.65 |
1.83 |
11.7 |
5.85 |
1.53 |
|
.2500 |
1/4 |
13.91 |
4.09 |
14.1 |
5.65 |
1.86 |
9.98 |
4.99 |
1.56 |
|
.1875 |
3/16 |
10.70 |
3.14 |
11.2 |
4.49 |
1.89 |
7.96 |
3.98 |
1.59 |
5×3 |
.5000 |
1/2 |
21.63 |
6.36 |
16.9 |
6.75 |
1.63 |
7.33 |
4.88 |
1.07 |
|
.3750 |
3/8 |
17.27 |
5.08 |
14.7 |
5.89 |
1.70 |
6.48 |
4.32 |
1.13 |
|
.3125 |
5/16 |
14.83 |
4.36 |
13.2 |
5.27 |
1.74 |
5.85 |
3.90 |
1.16 |