槽钢的表面质量及几何形状的允许偏差在标准中有具体规定。一般要求表面不得存在用上有害的缺陷，不得有显著的扭转，规定槽钢波浪弯（镰刀弯）的允许值及各规格槽钢面形状的有关参数（h ，b ，d ，t 等）的数值、允差值。槽钢几何形状不正确的主要表现是：角、腿扩及腿并等。
执行标准及规格
单位：kg/m、mm
|
规格 |
高度 |
腿宽 |
腰厚 |
理重 |
|
5# |
50 |
37 |
4.5 |
5.438 |
|
6.3# |
63 |
40 |
4.8 |
6.634 |
|
8# |
80 |
43 |
5.0 |
8.045 |
|
10# |
100 |
48 |
5.3 |
10.007 |
|
12# |
120 |
53 |
5.5 |
12.059 |
|
12.6 |
126 |
53 |
5.5 |
12.319 |
|
14#a |
140 |
58 |
6.0 |
14.535 |
|
14#b |
140 |
60 |
8 |
16.733 |
|
16#a |
160 |
63 |
6.5 |
17.24 |
|
16#b |
160 |
65 |
8.5 |
19.752 |
|
18#a |
180 |
68 |
7 |
20.174 |
|
18#b |
180 |
70 |
9 |
23 |
|
20#a |
200 |
73 |
7 |
22.637 |
|
20#b |
200 |
75 |
9 |
25.777 |
|
22#a |
220 |
77 |
7 |
24.999 |
|
22#b |
220 |
79 |
9 |
28.453 |
|
25#a |
250 |
78 |
7 |
27.41 |
|
25#b |
250 |
80 |
9 |
31.335 |
|
25#c |
250 |
82 |
11 |
35.26 |
|
28#a |
280 |
82 |
7.5 |
31.427 |
|
28#b |
280 |
84 |
9.5 |
35.832 |
|
28#c |
280 |
86 |
11 |
40.219 |
|
30#a |
300 |
85 |
7.5 |
34.463 |
|
30#b |
300 |
87 |
9.5 |
39.173 |
|
30#c |
300 |
89 |
11.5 |
43.883 |
|
32#a |
320 |
88 |
8 |
38.083 |
|
32#b |
320 |
90 |
10 |
43.107 |
|
32#c |
320 |
92 |
12 |
48.131 |
|
36#a |
360 |
96 |
9 |
47.814 |
|
36#b |
360 |
98 |
11 |
53.466 |
|
36#c |
360 |
100 |
13 |
59.118 |
|
40#a |
400 |
100 |
10 |
58.928 |
|
40#b |
400 |
102 |
12.5 |
65.208 |
|
40#c |
400 |
104 |
14.5 |
71.488 |
槽钢允许的偏差
(mm)
型号5 6.3 6.5 8 10 12 12.6 14 16 18 20 22 24 25 27 28 30 32 36 40
高度h ±1.5 ±2.0 ±2.0 ±3.0 ±3.0
腿宽b ±1.5 ±2.0 ±2.5 ±3.0 ±3.5
腰厚d ±0.4 ±0.5 ±0.6 ±0.7 ±0.8
弯腰挠度不应超过0.15d
通常长度5 ～12m 5 ～19m 6 ～19m
