|
size
|
(mm)
|
sectional area (cm2)
|
theoretical weight (kg/m)
|
allowable tolerance(mm)
|
||||||
|
b
|
t
|
h
|
rl
|
r
|
b
|
t
|
h
|
|||
|
80×5
80×6 |
80
|
5
|
19
|
4
|
≤1.5
|
5.41
|
4.25
|
±1.5
|
+0.7
-0.3 |
±0.5
|
|
6
|
20
|
≤2
|
6.21
|
4.88
|
||||||
|
100×7
100×8 |
100
|
7
|
22.5
|
4.5
|
≤2
|
8.74
|
6.86
|
|||
|
8
|
23.5
|
9.74
|
7.65
|
|||||||
|
120×6
120×7 120×8 |
120
|
6
|
23
|
5
|
≤2
|
9.32
|
7.32
|
|||
|
7
|
24
|
10.52
|
8.26
|
|||||||
|
8
|
25
|
11.72
|
9.20
|
|||||||
|
140×7
140×8 140×10 |
140
|
7
|
26
|
5.5
|
≤2
|
12.43
|
9.75
|
±2.0
|
+1.0
-0.3 |
±0.8
|
|
8
|
27
|
13.83
|
10.85
|
|||||||
|
10
|
29
|
≤3
|
16.63
|
13.05
|
||||||
|
160×7
160×8 160×9 160×11 |
160
|
7
|
29
|
6
|
≤2
|
14.60
|
11.46
|
|||
|
8
|
30
|
16.20
|
12.72
|
|||||||
|
9
|
31
|
17.80
|
13.97
|
|||||||
|
11
|
33
|
≤3
|
21.00
|
16.49
|
||||||
|
180×8
180×9 180×10 180×11 |
180
|
8
|
33
|
7
|
≤2
|
18.86
|
14.80
|
|||
|
9
|
34
|
20.66
|
16.22
|
|||||||
|
10
|
35
|
≤3
|
22.46
|
17.63
|
||||||
|
11
|
36
|
24.26
|
19.04
|
|||||||
|
200×9
200×10 200×11 200×12 |
200
|
9
|
37
|
8
|
≤2
|
23.66
|
18.57
|
±3.0
|
+1.1
-0.3 |
±0.95
|
|
10
|
38
|
≤3
|
25.66
|
20.14
|
||||||
|
11
|
39
|
27.66
|
21.71
|
|||||||
|
12
|
40
|
29.66
|
23.28
|
|||||||
|
220×10
220×11 220×12 |
220
|
10
|
41
|
9
|
≤3
|
29.66
|
22.27
|
|||
|
11
|
42
|
29.00
|
24.50
|
|||||||
|
12
|
43
|
31.20
|
26.22
|
|||||||
|
240×10
240×11 240×12 |
240
|
10
|
40
|
10
|
≤3
|
33.49
|
25.50
|
|||
|
11
|
45
|
34.89
|
27.39
|
|||||||
|
12
|
46
|
37.29
|
29.27
|
|||||||
|
260×10
260×11 260×12 |
260
|
10
|
47
|
11
|
≤3
|
36.11
|
28.35
|
|||
|
11
|
48
|
38.71
|
30.39
|
|||||||
|
12
|
49
|
41.31
|
32.43
|
|||||||
|
280×11
280×12 280×13 |
280
|
11
|
51
|
12
|
≤3
|
42.68
|
33.50
|
|||
|
12
|
52
|
45.48
|
35.70
|
|||||||
|
13
|
53
|
48.28
|
37.90
|
|||||||
|
300×11
300×12 300×13 |
300
|
11
|
54
|
13
|
≤3
|
46.78
|
36.70
|
|||
|
12
|
55
|
49.79
|
39.09
|
|||||||
|
13
|
56
|
52.79
|
41.44
|
|||||||
|
320×12
320×13 320×14 |
320
|
12
|
58
|
14
|
≤3
|
54.25
|
42.60
|
±4.0
|
+1.3
-0.3 |
+1.10
|
|
13
|
59
|
57.25
|
45.09
|
|||||||
|
14
|
60
|
≤4
|
60.85
|
47.60
|
||||||
|
340×12
340×13 340×14 |
340
|
12
|
61
|
15
|
≤3
|
58.84
|
46.20
|
|||
|
13
|
62
|
62.24
|
48.86
|
|||||||
|
14
|
63
|
≤4
|
65.54
|
51.50
|
||||||
|
370×13
370×14 370×15 |
370
|
13
|
66.5
|
16.5
|
≤3
|
69.70
|
54.70
|
|||
|
14
|
67.5
|
≤4
|
73.40
|
57.60
|
||||||
|
15
|
68.5
|
77.10
|
60.50
|
|||||||
|
400×14
400×15 400×16 |
400
|
14
|
72
|
18
|
≤4
|
81.48
|
63.96
|
|||
|
15
|
73
|
85.48
|
67.10
|
|||||||
|
16
|
74
|
89.48
|
70.20
|
|||||||
|
430×14
430×15 430×17 430×19 430×20 |
430
|
14
|
76.5
|
19.5
|
≤4
|
89.70
|
70.60
|
|||
|
15
|
77.5
|
94.19
|
73.90
|
|||||||
|
17
|
79.5
|
102.79
|
80.70
|
|||||||
|
19
|
81.5
|
111.39
|
87.40
|
|||||||
|
20
|
82.5
|
115.00
|
90.80
|
|||||||
Source:
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