1)尺寸規(guī)格見表6-137。
表6-137深井水泵用電焊鋼管的尺寸規(guī)格
|
外徑D
／mm |
壁厚S／mm |
|
3.0 |
3.25 |
3.5 |
3.75 |
4．O |
4.5 |
5.0 |
5.5 |
6.0 |
7．O |
8.0 |
10.0 |
12．O |
|
理論質(zhì)量／(kg／m) |
|
48 |
3.33 |
3.59 |
3.84 |
4.09 |
4.43 |
4.83 |
5.30 |
|
|
|
|
|
|
|
60 |
4.22 |
4.55 |
4.88 |
5.20 |
5.52 |
6.16 |
6.78 |
7.39 |
7.99 |
|
|
|
|
|
76 |
5.40 |
5.83 |
6.26 |
6.68 |
7.10 |
7.93 |
8.75 |
9.58 |
lO．36 |
11.9l |
|
|
|
|
89 |
6.36 |
6.87 |
7.38 |
7.88 |
8.38 |
9.38 |
10.36 |
11.33 |
12.28 |
14.15 |
|
|
|
|
102 |
7.32 |
7.9l |
8.50 |
9.09 |
9.67 |
10.82 |
11.96 |
13.09 |
14.20 |
16.40 |
|
|
|
|
114 |
8.2l |
8.88 |
9.54 |
10.19 |
10.85 |
12.15 |
13.44 |
14.72 |
15.98 |
18.47 |
|
|
|
|
140 |
|
|
11.78 |
12.60 |
13.42 |
15.04 |
16.65 |
18.24 |
19.83 |
22.96 |
|
|
|
|
159 |
|
|
13.42 |
14.36 |
15.29 |
17.14 |
18.99 |
20.82 |
22.64 |
26.24 |
|
|
|
|
168 |
|
|
14.20 |
15.19 |
16.18 |
18.14 |
20.10 |
22.04 |
23.97 |
27.79 |
3l.56 |
|
|
|
194 |
|
|
|
|
18.74 |
21.03 |
23.30 |
25.57 |
27.82 |
32.28 |
36.69 |
|
|
|
219 |
|
|
|
|
21.21 |
23.80 |
26.39 |
28.96 |
31.52 |
36.60 |
41.63 |
|
|
|
245 |
|
|
|
|
23.77 |
26.69 |
29.59 |
32.48 |
35.36 |
41.08 |
46.76 |
|
|
|
273 |
|
|
|
|
26.53 |
29.80 |
33.04 |
36.28 |
39.51 |
45.92 |
52.28 |
|
|
|
324 |
|
|
|
|
31.56 |
35.45 |
39.33 |
43.20 |
47.05 |
54.72 |
62.34 |
|
|
|
355.5 |
|
|
|
|
|
38.95 |
43.22 |
47.47 |
51.7l |
60.16 |
68.55 |
|
|
|
377 |
|
|
|
|
|
41.37 |
45.87 |
50.39 |
54.89 |
63.87 |
72.80 |
|
|
|
406.5 |
|
|
|
|
|
44.60 |
49.50 |
54.39 |
59.26 |
68.96 |
78.62 |
97.78 |
|
|
457 |
|
|
|
|
|
|
55.73 |
61.24 |
66.73 |
77.68 |
88.58 |
110.23 |
|
|
508 |
|
|
|
|
|
|
|
68.15 |
74.28 |
86.48 |
98.64 |
122.8l |
146.78 |
2．
鋼管的定尺長度應(yīng)在通常長度范圍內(nèi)，其長度允許偏差為+20mm。
3．
鋼管的倍尺長度應(yīng)在通常長度范圍內(nèi)，每個倍尺間應(yīng)留出5-10mm的切口余量，
鋼管全長的允許偏差為+20mm。
(2)允許偏差見表6—138。
表6一138深井水泵用電焊鋼管的允許偏差 (mm)
|
外 徑 |
外徑允許偏差 |
壁 厚 |
壁厚允許偏差 |
|
D<76 |
+O．70
-0.10 |
3．O～12.0 |
+12.5
％一10 |
|
76≤D≤114 |
+1.0
％-O．2 |
|
D>114 |
±O．8％ |
2．
鋼管的圓度應(yīng)不大于外徑公差的70％。
(3)用途適用于深井水泵、潛水泵及其他用途。
