低壓流體輸送用大直徑電焊鋼管(GB/T14980-1994)
尺寸規(guī)格
大直徑電焊鋼管的尺寸規(guī)格
公稱外徑D |
壁厚S/mm |
4.0 |
4.5 |
5.0 |
5.5 |
6.0 |
7.0 |
8.0 |
10.0 |
11.0 |
12.0 |
(in) |
|
理論質(zhì)量/(kg/m) |
(6 5/8) |
168.3 |
16.21 |
18.18 |
20.13 |
22.08 |
24.01 |
|
|
|
|
|
(7) |
177.8 |
17.14 |
19.23 |
21.30 |
23.37 |
25.42 |
|
|
|
|
|
(7 5/8) |
193.7 |
18.71 |
20.10 |
23.27 |
25.52 |
27.80 |
|
|
|
|
|
(8 5/8) |
219.1 |
21.22 |
23.81 |
26.40 |
28.97 |
31.53 |
36.61 |
41.63 |
51.56 |
|
|
(9 /8) |
244.5 |
23.72 |
26.63 |
29.53 |
32.42 |
35.29 |
41.00 |
46.66 |
57.83 |
|
|
(10 3/4) |
273 |
|
|
33.04 |
26.28 |
39.51 |
45.92 |
52.28 |
64.86 |
|
|
(12 3/4) |
323.9 |
|
|
39.32 |
43.19 |
47.04 |
54.70 |
62.32 |
77.41 |
84.88 |
92.30 |
(14) |
355.6 |
|
|
|
47.48 |
51.73 |
60.18 |
68.57 |
85.22 |
93.48 |
101.7 |
(16) |
406.4 |
|
|
|
54.37 |
59.24 |
68.94 |
78.59 |
97.75 |
107.3 |
116.7 |
(18) |
457.2 |
|
|
|
61。26 |
66.76 |
77.71 |
88.62 |
110.3 |
121.4 |
131.7 |
(20) |
508 |
|
|
|
68.15 |
74.28 |
86.48 |
98.64 |
122.8 |
134.8 |
146.8 |
注:1.根據(jù)需方要求,并經(jīng)供需雙方協(xié)議,可供應(yīng)介于表中所列外徑和壁厚之間尺寸的鋼管。
2.鋼管外徑的允許偏差不得超過±0.8%D。
3.鋼管壁厚允許偏差不得超過±12.5%S。
4.鋼管的通常長度為6-12m。
5.鋼管的定尺長度應(yīng)在通常長度范圍內(nèi),其允許偏差為+20mm。
6.鋼管的彎曲度不得大于鋼管全長的0.15%。
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