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Circular seamless steel pipes also have certain limitations. For example, under the condition of plane bending, circular seamless steel pipes are not as strong as square and rectangular seamless steel pipes. ,Rectangular tube. According to the mechanical properties of different square tubes.
|
Basic size |
Area |
Weight |
||
|
A |
B |
S |
F/cm2 |
G/kg·m- |
|
mm |
||||
|
36 |
18 |
1.5 |
1.49 |
1.17 |
|
2 |
1.93 |
1.52 |
||
|
2.5 |
2.34 |
1.84 |
||
|
3 |
2.73 |
2.14 |
||
|
3.5 |
3.08 |
2.42 |
||
|
50 |
32 |
2 |
3.05 |
2.4 |
|
2.5 |
3.74 |
2.94 |
||
|
3 |
4.41 |
3.46 |
||
|
70 |
50 |
4 |
8.69 |
6.82 |
|
5 |
10.57 |
8.3 |
||
|
6 |
12.34 |
9.69 |
||
|
7 |
14 |
10.99 |
||
|
80 |
60 |
4 |
10.29 |
8.07 |
|
5 |
12.57 |
9.87 |
||
|
6 |
14.74 |
11.57 |
||
|
7 |
16.8 |
13.19 |
||
|
90 |
60 |
4 |
11.09 |
8.7 |
|
5 |
13.57 |
10.65 |
||
|
6 |
15.94 |
12.52 |
||
|
7 |
18.2 |
14.29 |
||
|
100 |
70 |
5 |
15.57 |
12.22 |
|
6 |
18.34 |
14.4 |
||
|
7 |
21 |
16.48 |
||
|
8 |
23.54 |
18.48 |
||
