热轧方钢GB/T702-2004 公称边长(MM) |
冷拉方钢GB/T905 公称边长(MM) |
长度 |
5.5 |
17 |
30 |
53 |
95 |
190 |
3 |
9 |
19 |
38 |
70 |
冷拉 |
|
2~6M |
6 |
18 |
31 |
55 |
100 |
200 |
3.2 |
9.5 |
20 |
40 |
75 |
热轧 |
边长≤25 |
4~10M |
6.5 |
19 |
32 |
56 |
105 |
210 |
3.5 |
10 |
21 |
42 |
80 |
|
边长>25 |
3~9M |
7 |
20 |
33 |
5 |
110 |
220 |
4 |
10.5 |
22 |
45 |
|
优质钢 |
|
2~7M |
8 |
21 |
34 |
60 |
115 |
230 |
4.5 |
11 |
24 |
48 |
|
工具钢 |
|
1~6M |
9 |
22 |
35 |
63 |
120 |
240 |
5 |
11.5 |
25 |
50 |
质量计算 |
10 |
23 |
36 |
65 |
125 |
250 |
5.5 |
12 |
26 |
52 |
|
11 |
24 |
38 |
68 |
130 |
|
6 |
13 |
28 |
55 |
12 |
25 |
40 |
70 |
140 |
|
6.3 |
14 |
30 |
56 |
13 |
26 |
42 |
75 |
150 |
|
7 |
15 |
32 |
60 |
14 |
27 |
45 |
80 |
160 |
|
7.5 |
16 |
34 |
63 |
15 |
28 |
48 |
85 |
170 |
|
8 |
17 |
35 |
65 |
16 |
29 |
50 |
90 |
180 |
|
8.5 |
18 |
36 |
67 |
|