| (八）热轧轻型工字钢[（YB）163-63] |
|
|
h-高度；b-腿宽；d-腰厚；t-平均腿厚；r-内圆弧半径；r1-腿端圆弧半径 |
| 型 号 |
尺
寸 |
截面面积 |
理论重量 |
| h |
b |
d |
t |
r |
r1 |
| （mm） |
(cm2) |
(kg/m) |
| 10 |
100 |
55 |
4.5 |
7.2 |
7.0 |
2.5 |
12.0 |
9.46 |
| 12 |
120 |
64 |
4.8 |
7.3 |
7.5 |
3.0 |
14.7 |
11.5 |
| 14 |
140 |
73 |
4.9 |
7.5 |
8.0 |
3.0 |
17.4 |
13.7 |
| 16 |
160 |
81 |
5.0 |
7.8 |
8.5 |
3.5 |
20.2 |
15 |
| 18 |
180 |
90 |
5.1 |
8.1 |
6.0 |
3.5 |
23.4 |
18.4 |
| 18a |
180 |
100 |
5.1 |
8.3 |
9.0 |
3.5 |
25.4 |
19.9 |
| 20 |
200 |
100 |
5.2 |
8.4 |
9.5 |
4.0 |
26.8 |
21.0 |
| 20a |
200 |
110 |
5.2 |
8.6 |
9.5 |
4.0 |
28.9 |
22.7 |
| 22 |
220 |
110 |
5.4 |
8.7 |
10.0 |
4.0 |
30.6 |
24.0 |
| 22a |
220 |
120 |
5.4 |
8.9 |
10.0 |
4.0 |
32.8 |
25.8 |
| 24 |
240 |
115 |
5.6 |
9.5 |
10.5 |
4.0 |
34.8 |
27.3 |
| 24a |
240 |
125 |
5.6 |
9.8 |
10.5 |
4.0 |
37.5 |
29.4 |
| 27 |
270 |
125 |
6.0 |
9.8 |
11.0 |
4.5 |
40.2 |
31.5 |
| 27a |
270 |
135 |
6.0 |
10.2 |
11.0 |
4.5 |
43.2 |
33.9 |
| 30 |
300 |
135 |
6.5 |
10.2 |
12.0 |
5.0 |
46.5 |
36.5 |
| 30a |
300 |
145 |
6.5 |
10.7 |
12.0 |
5.0 |
49.9 |
39.2 |
| 33 |
330 |
140 |
7.0 |
11.2 |
13.0 |
5.0 |
53.8 |
42.2 |
| 36 |
360 |
145 |
7.5 |
12.3 |
14.0 |
6.0 |
61.9 |
48.6 |
| 40 |
400 |
155 |
8.0 |
13.0 |
15.0 |
6.0 |
71.4 |
56.1 |
| 45 |
450 |
160 |
8.6 |
14.2 |
16.0 |
7.0 |
83.0 |
65.2 |
| 50 |
500 |
170 |
9.5 |
15.2 |
17.0 |
7.0 |
97.8 |
76.8 |
| 55 |
550 |
180 |
10.3 |
16.5 |
18.0 |
7.0 |
114 |
89.8 |
| 60 |
600 |
190 |
11.1 |
17.8 |
20.0 |
8.0 |
132 |
104 |
| 65 |
650 |
200 |
12 |
19.2 |
22.0 |
9.0 |
153 |
120 |
| 70 |
700 |
210 |
13 |
20.8 |
24.0 |
10.0 |
176 |
138 |
| 70a |
700 |
210 |
15 |
24.0 |
24.0 |
10.0 |
202 |
158 |
| 70b |
700 |
210 |
17.5 |
28.2 |
24.0 |
10.0 |
243 |
184 |
| 注 （1）轻型工字钢的通常长度：10~18号工字钢5~19m；20~70号工字钢长6~19m。 |
| （2）制造钢号：A3，A3F等。 |
| （3）标记举例：普通碳素钢甲类平炉3号沸腾钢240mmX115mmX5.6mm的热轧轻型工字钢的标记为： |
|
热轧轻型工字钢 |
240x115x5.6-YB193-93 |
|
| A3F-YB170-63 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|