收藏词条 编辑词条 矿用流体输送电焊钢管（GB/T14291-1993）
1)尺寸规格和允许偏差见表6-139、表6-140。
表6-139矿用流体输送电焊钢管的尺寸规格
|
外径D /mm |
壁 厚S/mm |
|||||||||||||||||
|
2.5 |
3.O |
3.5 |
4.O |
4.5 |
5.O |
5.5 |
6 |
6.5 |
7 |
7.5 |
8.O |
8.5 |
9.O |
9.5 |
1O |
11 |
12 |
|
|
理论质量/(kg/m) |
||||||||||||||||||
|
21.3 |
1.16 |
1.35 |
1.54 |
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|
|
|
|
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|
|
|
|
|
|
|
|
|
|
26.8 |
1.5 |
1.76 |
2.01 |
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
33 |
1.88 |
2.22 |
2.55 |
2.86 |
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|
42 |
2.44 |
2.89 |
3.32 |
3.75 |
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|
|
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|
45 |
2.62 |
3.11 |
3.58 |
4.04 |
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|
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|
|
|
48 |
2.81 |
3.33 |
3.84 |
4.34 |
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|
|
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|
57 |
3.36 |
3.99 |
4.62 |
5.23 |
5.83 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
60 |
3.54 |
4.22 |
4.88 |
5.52 |
6.16 |
|
|
|
|
|
|
|
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|
|
|
|
|
|
70 |
4.16 |
4.96 |
5.74 |
6.51 |
7.27 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
76 |
4.53 |
5.4 |
6.26 |
7.1 |
7.93 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
89 |
|
6.36 |
7.38 |
8.38 |
9.38 |
10.36 |
|
|
|
|
|
|
|
|
|
|
|
|
|
95 |
|
6.81 |
7.9 |
8.98 |
10.04 |
11.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
102 |
|
7.32 |
8.5 |
9.67 |
10.82 |
11.96 |
13.09 |
14.2 |
15.31 |
|
|
|
|
|
|
|
|
|
|
108 |
|
7.77 |
9.02 |
10.26 |
11.49 |
12.7 |
13.9 |
15.09 |
16.27 |
|
|
|
|
|
|
|
|
|
|
114 |
|
|
9.54 |
10.B5 |
12.15 |
13.44 |
14.72 |
15.98 |
17.23 |
|
|
|
|
|
|
|
|
|
|
121 |
|
|
10.14 |
11.54 |
12.93 |
14.3 |
15.67 |
17.02 |
18.35 |
|
|
|
|
|
|
|
|
|
|
127 |
|
|
10.66 |
12.13 |
13.59 |
15.04 |
16.48 |
17.9 |
19.31 |
|
|
|
|
|
|
|
|
|
|
133 |
|
|
11.18 |
12.72 |
14.26 |
15.78 |
17.29 |
18.79 |
20.28 |
|
|
|
|
|
|
|
|
|
|
140 |
|
|
|
13.42 |
15.04 |
16.65 |
18.24 |
19.83 |
21.4 |
22.96 |
24.51 |
|
|
|
|
|
|
|
|
152 |
|
|
|
14.6 |
16.37 |
18.13 |
19.87 |
21.6 |
23.32 |
25.03 |
26.73 |
|
|
|
|
|
|
|
|
159 |
|
|
|
15.29 |
17.14 |
18.99 |
20.82 |
22.64 |
24.44 |
22.64 |
26.24 |
28.02 |
29.79 |
31.55 |
33.29 |
35.02 |
|
|
|
165 |
|
|
|
|
17.81 |
19.73 |
21.63 |
23.53 |
25.41 |
27.27 |
29.13 |
30.97 |
32.8 |
34.62 |
36.43 |
|
|
|
|
168 |
|
|
|
|
18.14 |
20.1 |
22.04 |
23.97 |
25.89 |
27.79 |
29.68 |
31.56 |
33.43 |
35.29 |
37.13 |
|
|
|
|
180 |
|
|
|
|
19.48 |
21.58 |
23.67 |
25.75 |
27.81 |
29.86 |
31.9 |
33.93 |
35.95 |
37.95 |
39.94 |
|
|
|
|
194 |
|
|
|
|
|
23.3 |
25.57 |
27.82 |
30.05 |
32.28 |
34.49 |
36.69 |
38.88 |
41.06 |
43.22 |
|
|
|
|
203 |
|
|
|
|
|
24.41 |
26.79 |
29.15 |
31.5 |
33.83 |
36.16 |
38.47 |
40.77 |
43.06 |
45.33 |
|
|
|
|
219 |
|
|
|
|
|
26.39 |
28.96 |
31.52 |
34.06 |
36.6 |
39.12 |
41.63 |
44.12 |
46.61 |
49.08 |
|
|
|
|
245 |
|
|
|
|
|
29.59 |
32.48 |
35.36 |
38.23 |
41.08 |
43.93 |
46.76 |
49.57 |
52.38 |
55.17 |
57.95 |
|
|
|
273 |
|
|
|
|
|
33.04 |
36.28 |
39.51 |
42.72 |
45.92 |
49.1 |
52.28 |
55.44 |
58.59 |
61.73 |
64.86 |
|
|
|
295 |
|
|
|
|
|
|
|
42.76 |
46.24 |
49.71 |
53.17 |
56.62 |
60.05 |
63.47 |
66.88 |
70.28 |
77.04 |
|
|
325 |
|
|
|
|
|
|
|
47.2 |
51.05 |
54.89 |
58.72 |
62.53 |
66.34 |
70.13 |
73.91 |
77.67 |
85.18 |
|
|
377 |
|
|
|
|
|
|
|
54.89 |
59.39 |
63.87 |
68.34 |
72.8 |
77.24 |
81.67 |
86.09 |
90.5 |
99.28 |
108.01 |
|
402 |
|
|
|
|
|
|
|
58.59 |
63.39 |
68.18 |
72.96 |
77.73 |
82.48 |
87.22 |
91.95 |
96.67 |
106.06 |
115.41 |
|
426 |
|
|
|
|
|
|
|
62.14 |
67.24 |
72.33 |
77.4 |
82.46 |
87.51 |
92.55 |
97.57 |
102.59 |
112.57 |
122.51 |
|
450 |
|
|
|
|
|
|
|
65.69 |
71.09 |
76.47 |
81.84 |
87.2 |
92.54 |
97.88 |
103.2 |
108.5 |
119.08 |
129.61 |
|
480 |
|
|
|
|
|
|
|
70.13 |
75.9 |
81.65 |
87.39 |
93.12 |
98.83 |
104.53 |
110.22 |
115.9 |
127.22 |
138.49 |
|
508 |
|
|
|
|
|
|
|
74.28 |
80.39 |
86.48 |
92.57 |
98.64 |
104.7 |
110.75 |
116.78 |
122.81 |
134.82 |
146.78 |
注：根据需方要求，并经供需双方协议，可供介于表中所列外径和壁厚之间尺寸的钢管。
表6-140矿用流体输送电焊钢管的允许偏差 (mm)
|
外 径 |
允许偏差 |
壁 厚 |
允许偏差 |
|
D≤50 |
±O.5 |
2.5～12 |
土12% |
|
D>50 |
±0.90% |
注：1.钢管的通常长度为4～12m。定尺和倍尺长度应在通常长度范围内，总长度允许偏差为+
2.钢管的弯曲度每米不大于
(2)力学性能见表6-141。
表6-141矿用流体输送电焊钢管的力学性能
|
牌 号 |
抗拉强度ób/MPa≥ |
屈服点ós/MPa≥ |
伸长率δ(%)≥ |
|
Q235 AB |
375 |
235 |
20 |
注：1.拉伸试验，仲裁以纵向试样为准。
2.钢管用GB/T700规定的Q
3.钢管按焊接状态交货。
(3)水压试验见表6-142。
(4)用途适用于矿山压风、排水、抽放瓦斯。
表6-142矿用流体输送电焊钢管的水压试验压力值
|
外径D/mm |
壁 厚S/mm |
|||||||||||||||||
|
2.5 |
3.O |
3.5 |
4 |
4.5 |
5.O |
5.5 |
6 |
6.5 |
7.O |
7.5 |
8 |
8.5 |
9.O |
9.5 |
10 |
11 |
12 |
|
|
试验压力值/MPa |
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|
21.3 |
15 |
15 |
15 |
|
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|
26.8 |
15 |
15 |
15 |
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|
33 |
15.O |
15.O |
15 |
15.O |
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|
42 |
15.O |
15.O |
15 |
15.O |
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|
45 |
15 |
15.O |
15.O |
15 |
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|
48 |
14.7 |
15.O |
15.O |
15 |
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|
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|
57 |
12.4 |
14.8 |
15 |
15.O |
15.O |
|
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|
60 |
11.8 |
14.1 |
15 |
15 |
15.O |
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|
70 |
10.1 |
12.1 |
14.1 |
15.O |
15.O |
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|
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|
76 |
9.3 |
11.1 |
12.9 |
14.8 |
15.O |
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|
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|
|
|
|
|
|
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|
89 |
|
9.5 |
11.1 |
12.7 |
14.3 |
15.O |
|
|
|
|
|
|
|
|
|
|
|
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|
95 |
|
8.9 |
10.4 |
11.9 |
13.4 |
14.8 |
|
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|
|
|
|
|
|
|
|
|
|
|
102 |
|
8.3 |
9.7 |
11.1 |
12.4 |
13.8 |
15.O |
15.O |
15.O |
|
|
|
|
|
|
|
|
|
|
108 |
|
7.8 |
9.1 |
10.4 |
11.8 |
13.1 |
14.4 |
15.O |
15.O |
|
|
|
|
|
|
|
|
|
|
114 |
|
|
8.7 |
9.9 |
11.1 |
12.4 |
13.6 |
14.8 |
15.O |
|
|
|
|
|
|
|
|
|
|
121 |
|
|
8.2 |
9.3 |
10.5 |
11.7 |
12.8 |
14 |
15.O |
|
|
|
|
|
|
|
|
|
|
127 |
|
|
7.8 |
8.9 |
10 |
11.1 |
12.2 |
13.3 |
14.4 |
|
|
|
|
|
|
|
|
|
|
133 |
|
|
7.4 |
8.5 |
9.5 |
10.6 |
11.7 |
12.7 |
13.8 |
|
|
|
|
|
|
|
|
|
|
140 |
|
|
|
8.1 |
9.1 |
10.1 |
11.1 |
12.1 |
13.1 |
14.1 |
15 |
|
|
|
|
|
|
|
|
152 |
|
|
|
7.4 |
8.4 |
9.3 |
10.2 |
11.1 |
12.1 |
13.O |
13.9 |
|
|
|
|
|
|
|
|
159 |
|
|
|
7.1 |
8 |
8.9 |
9.8 |
10.6 |
11.5 |
12.4 |
13.3 |
14.2 |
15.O |
15 |
15 |
|
|
|
|
165 |
|
|
|
|
7.7 |
8.5 |
9.4 |
10.3 |
11.1 |
12 |
12.8 |
13.7 |
14.5 |
15.O |
15 |
|
|
|
|
168 |
|
|
|
|
7.6 |
8.4 |
9.2 |
10.1 |
10.9 |
11.8 |
12.6 |
13.4 |
14.3 |
15 |
15 |
|
|
|
|
180 |
|
|
|
|
7.1 |
7.8 |
8.6 |
9.4 |
10.2 |
11.O |
11.8 |
12.5 |
13.3 |
14.1 |
14.9 |
|
|
|
|
194 |
|
|
|
|
|
7.3 |
8 |
8.7 |
9.4 |
10.2 |
10.9 |
11.6 |
12.4 |
13.1 |
13.8 |
|
|
|
|
203 |
|
|
|
|
|
6.9 |
7.6 |
8.3 |
9 |
9.7 |
10.4 |
11.1 |
11.8 |
12.5 |
13.2 |
|
|
|
|
219 |
|
|
|
|
|
6.4 |
7.1 |
7.7 |
8.4 |
9 |
9.7 |
10.3 |
10.9 |
11.6 |
12.2 |
|
|
|
|
245 |
|
|
|
|
|
5.8 |
6.3 |
6.9 |
7.5 |
8.1 |
8.6 |
9.2 |
9.8 |
10.4 |
10.9 |
11.5 |
|
|
|
273 |
|
|
|
|
|
5.2 |
5.7 |
6.2 |
6.7 |
7.2 |
7.7 |
8.3 |
8.8 |
9.3 |
9.8 |
10.3 |
|
|
|
295 |
|
|
|
|
|
|
|
5.7 |
6.2 |
6.7 |
7.2 |
7.6 |
8.1 |
8.6 |
9.1 |
9.6 |
10.5 |
|
|
325 |
|
|
|
|
|
|
|
5.2 |
5.6 |
6.1 |
6.5 |
6.9 |
7.4 |
7.8 |
8.2 |
8.7 |
9.5 |
|
|
377 |
|
|
|
|
|
|
|
4,50 |
4.9 |
5.2 |
5.6 |
6 |
6.4 |
6.7 |
7.1 |
7.5 |
8.2 |
9 |
|
402 |
|
|
|
|
|
|
|
4.2 |
4.6 |
4.9 |
5.3 |
5.6 |
6 |
6.3 |
6.7 |
7 |
7.7 |
8.4 |
|
426 |
|
|
|
|
|
|
|
4 |
4.3 |
4.6 |
5 |
5.3 |
5.6 |
6 |
6.3 |
6.6 |
7.3 |
7.9 |
|
450 |
|
|
|
|
|
|
|
3.8 |
4.1 |
4.4 |
4.7 |
5 |
5.3 |
5.6 |
6 |
6.3 |
6.9 |
7.5 |
|
480 |
|
|
|
|
|
|
|
3.5 |
3.8 |
4.1 |
4.4 |
4.7 |
5 |
5.3 |
5.6 |
5.9 |
6.5 |
7.1 |
|
508 |
|
|
|
|
|
|
|
3.3 |
3.6 |
3.9 |
4.2 |
4.4 |
4.7 |
5 |
5.3 |
5.6 |
6.1 |
6.7 |
注：1.表中数值是按公式P=2.S.R/D泸计算，经修约后所得，超过15.0MPa计为15.0MPa。
式中：P为试验压力，单位MPa；D为钢管公称外径，单位mm；S为钢管公称壁厚，单位mm；S为规定屈服点的60%，单位MPa。
2.钢管应逐根进行水压试验，试验压力值应符合表中的规定。在试验压力下，稳压时间不得少于5s，此时钢管不得漏水。