序号 |
规格 |
壁厚 (mm) |
每米理论重量 (kg) |
通常长度 |
备注 |
|
通经 |
外径(mm) |
|||||
1、热轧无缝钢管 |
||||||
1 |
DN40 |
43 |
3 |
2.89 |
9米/根或 10米/根 |
|
2 |
DN50 |
57 |
3 |
4 |
|
|
3 |
60 |
3 |
4.22 |
|
||
4 |
DN65 |
73 |
3.5 |
6 |
|
|
5 |
76 |
3.5 |
6.26 |
|
||
6 |
DN80 |
89 |
3.5 |
7.38 |
|
|
7 |
DN100 |
108 |
4 |
10.26 |
|
|
8 |
DN125 |
133 |
4 |
12.73 |
|
|
9 |
DN150 |
159 |
4.5 |
17.15 |
|
|
10 |
DN200 |
219 |
6 |
31.52 |
|
|
11 |
DN250 |
273 |
7 |
45.92 |
|
|
12 |
DN300 |
325 |
8 |
62.54 |
|
|
2、低压流体输送焊接钢管 |
||||||
1 |
DN15(1/2”) |
21.3 |
2.75 |
1.26 |
6米/根 |
括号内的表示英制通经 |
2 |
DN20(3/4”) |
26.8 |
2.75 |
1.63 |
||
3 |
DN25(1”) |
33.5 |
3.25 |
2.42 |
||
4 |
DN32(1-1/4”) |
42.3 |
3.25 |
3.13 |
||
5 |
DN40(1-1/2”) |
48 |
3.5 |
3.84 |
||
6 |
DN50(2”) |
60 |
3.5 |
4.88 |
||
7 |
DN65(2-1/2”) |
75.5 |
3.75 |
6.64 |
||
8 |
DN80(3”) |
88.5 |
4 |
8.34 |
||
9 |
DN100(4”) |
114 |
4 |
10.85 |
||
10 |
DN125(5”) |
140 |
4.5 |
15.04 |
||
11 |
DN150(6”) |
165 |
4.5 |
17.81 |
||
3、螺旋缝埋弧焊钢管 |
||||||
1 |
DN200 |
219 |
6 |
32.03 |
12米/根 |
|
2 |
DN250 |
273 |
6 |
40.01 |
|
|
3 |
DN300 |
325 |
6 |
47.54 |
|
|
4 |
DN350 |
377 |
6 |
55.4 |
|
|
5 |
DN400 |
426 |
6 |
62.65 |
|
|
6 |
DN450 |
480 |
8 |
104.52 |
|
|
7 |
DN500 |
529 |
8 |
115.62 |
|
|
8 |
DN600 |
630 |
8 |
137.81 |
|
|
9 |
DN700 |
720 |
10 |
175.6 |
|
|
10 |
DN800 |
820 |
10 |
200.26 |
|
|
11 |
DN900 |
920 |
10 |
224.92 |
|
|
12 |
DN1000 |
1020 |
10 |
249.58 |
|
常用钢管
名称 |
公称通经DN /mm |
外径D*壁厚 (mm*mm) |
单位长度重量 kg/m |
无缝钢管 |
DN65 |
76*4 |
7.10 |
DN80 |
89*4 |
8.38 |
|
DN100 |
108*4 |
10.26 |
|
DN125 |
133*4.5 |
14.26 |
|
DN150 |
159*5 |
18.99 |
|
螺旋焊缝钢管 |
DN200 |
219*6 |
31.52 |
DN250 |
273*6 |
39.51 |
|
DN300 |
325*6 |
47.20 |
|
DN350 |
377*6 |
54.90 |
|
DN400 |
426*6 |
62.15 |
|
DN450 |
478*6 |
69.84 |
|
钢板卷焊管 |
DN500 |
530*6 |
77.53 |
DN600 |
630*6 |
92.33 |
|
DN700 |
720*6 |
105.64 |
|
DN800 |
820*6 |
120.44 |
|
DN900 |
920*6 |
135.24 |
|
DN1000 |
1020*6 |
150.03 |
钢管每米理论重量计算公式:
W=3.1416*ρδ(D—δ)/1000
W——钢管每米理论重量kg/m;
ρ——钢的密度kg/dm-3;7.81、7.85、7.91
D——钢管的公称外径mm;
δ——钢管的公称壁厚mm;