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| 焊接鋼管壁厚標(biāo)準(zhǔn) Q345B無(wú)縫鋼管壁厚標(biāo)準(zhǔn) |
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焊接鋼管壁厚標(biāo)準(zhǔn) Q345B無(wú)縫鋼管壁厚標(biāo)準(zhǔn)
|
表 1
|
公稱口徑 |
外徑 |
普通鋼管 |
加厚鋼管 |
|
毫米 |
英寸 |
公稱尺寸(毫米)
|
允差
|
壁厚 |
理論重量(千克/米) |
壁厚 |
理論重量(千克/米) |
|
公稱尺寸(毫米) |
允差(%) |
公稱尺寸(毫米) |
允差(%) |
|
15 |
1/2 |
21.3 |
 0.50mm
|
2.8 |
12.5 |
1.28 |
3.5 |
12.5 |
1.54 |
|
20 |
3/4 |
26.9 |
0.50mm |
2.8 |
1.66 |
3.5 |
2.02 |
|
25 |
1 |
33.7 |
0.50mm |
3.2 |
2.41 |
4.0 |
2.93 |
|
32 |
11/4 |
42.4 |
0.50mm |
3.5 |
3.36 |
4.0 |
3.79 |
|
40 |
11/2 |
48.3 |
0.50mm |
3.5 |
3.87 |
4.5 |
4.86 |
|
50 |
2 |
60.3 |
1.0% |
3.8 |
5.29 |
4.5 |
6.19 |
|
65 |
21/2 |
76.1 |
1.0% |
4.0 |
7.11 |
4.5 |
7.95 |
|
80 |
3 |
88.9 |
1.0% |
4.0 |
8.38 |
5.0 |
10.35 |
|
100 |
4 |
114.3 |
1.0% |
4.0 |
10.88 |
5.0 |
13.48 |
|
125 |
5 |
139.7 |
1.0% |
4.0 |
13.39 |
5.5 |
18.20 |
|
150 |
6 |
168.3 |
1.0% |
4.5 |
18.18 |
6.0 |
24.02 |
表 2
|
公稱外徑
(毫米) |
公稱壁厚(毫米) |
|
4.0 |
4.5 |
5.0 |
5.5 |
6.0 |
6.5 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.5 |
14.0 |
15.0 |
16.0 |
|
理論重量 (千克/米) |
|
177.8 |
17.14 |
19.23 |
21.31 |
23.37 |
25.42 |
|
|
|
|
|
|
|
|
|
|
|
193.7 |
18.71 |
21.00 |
23.27 |
25.53 |
27.77 |
|
|
|
|
|
|
|
|
|
|
|
219.1 |
21.22 |
23.82 |
26.40 |
28.97 |
31.53 |
34.08 |
36.61 |
41.65 |
46.63 |
51.57 |
|
|
|
|
|
|
244.5 |
23.72 |
26.63 |
29.53 |
32.42 |
35.29 |
38.15 |
41.00 |
46.66 |
52.27 |
57.83 |
|
|
|
|
|
|
273.0 |
|
|
33.05 |
36.28 |
39.51 |
42.72 |
45.92 |
52.28 |
58.60 |
64.86 |
|
|
|
|
|
|
323.9 |
|
|
39.32 |
43.19 |
47.04 |
50.88 |
54.71 |
62.32 |
69.89 |
77.41 |
84.88 |
95.99 |
|
|
|
|
355.6 |
|
|
|
47.49 |
51.73 |
55.96 |
60.18 |
68.58 |
76.93 |
85.23 |
93.48 |
105.77 |
|
|
|
|
406.4 |
|
|
|
54.38 |
59.25 |
64.10 |
68.95 |
78.60 |
88.20 |
97.76 |
107.26 |
121.43 |
|
|
|
|
457.2 |
|
|
|
61.27 |
66.76 |
72.25 |
77.72 |
88.62 |
99.48 |
110.29 |
121.04 |
137.09 |
|
|
|
|
508 |
|
|
|
68.16 |
74.28 |
80.39 |
86.49 |
98.65 |
110.75 |
122.81 |
134.82 |
152.75 |
|
|
|
|
559 |
|
|
|
75.08 |
81.83 |
88.57 |
95.29 |
108.71 |
122.07 |
135.39 |
148.66 |
168.47 |
188.17 |
201.24 |
214.26 |
|
610 |
|
|
|
81.99 |
83.97 |
96.74 |
104.10 |
118.77 |
133.39 |
147.97 |
162.49 |
184.19 |
205.78 |
220.10 |
234.38 |
表 3
|
公稱外徑
(毫米) |
公稱壁厚(毫米) |
|
6.0 |
6.5 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
13.0 |
14.0 |
15.0 |
16.0 |
18.0 |
19.0 |
20.0 |
22.0 |
25.0 |
|
理論重量 (千克/米) |
|
660 |
96.77 |
104.76 |
112.73 |
128.63 |
144.49 |
160.30 |
176.06 |
207.43 |
238.60 |
254.11 |
284.99 |
300.35 |
315.67 |
345.15 |
346.15 |
391.50 |
|
711 |
104.32 |
112.93 |
121.53 |
138.70 |
155.81 |
172.88 |
189.89 |
223.78 |
240.65 |
257.47 |
274.24 |
307.63 |
324.25 |
340.82 |
373.82 |
422.94 |
|
762 |
111.86 |
121.11 |
130.34 |
148.76 |
167.13 |
185.45 |
203.73 |
240.13 |
258.26 |
276.33 |
294.36 |
330.27 |
348.15 |
365.98 |
401.49 |
454.39 |
|
813 |
119.41 |
129.28 |
139.14 |
158.82 |
178.45 |
198.03 |
217.56 |
256.48 |
275.86 |
295.20 |
314.48 |
352.91 |
372.04 |
391.13 |
426.16 |
485.83 |
|
864 |
126.96 |
137.46 |
147.94 |
168.88 |
189.77 |
210.61 |
231.40 |
272.83 |
293.47 |
314.06 |
334.61 |
375.55 |
395.94 |
416.29 |
456.83 |
517.27 |
|
914 |
134.36 |
145.47 |
156.58 |
178.75 |
200.87 |
222.94 |
244.96 |
288.86 |
310.73 |
332.56 |
354.34 |
397.74 |
419.37 |
440.95 |
483.96 |
548.10 |
|
|
中國(guó)國(guó)家標(biāo)準(zhǔn)GB/T3091-93 CHINA NATIONAL STANDARD GB/T3091-93
GB/T3091-93 低壓流體輸送用鍍鋅焊接鋼管
THE Gavanized welded steel pipe up to CHINA NATIONAL STANDARD GB/T3091-93
for Low Pressure Service
|
公徑口稱 |
外 徑 |
普通鋼管 |
加厚鋼管 |
螺 紋 |
|
DN
mm |
in |
公稱
尺寸 |
允許
偏差 |
Wall Thickness |
理論
重量 |
Wall Thickness |
理論
重量 |
每寸
牙數(shù) |
長(zhǎng)度 |
|
公稱尺寸 |
允許偏差 |
公稱尺寸 |
允許偏差 |
|
15 |
1/2 |
21.3 |
±0.50mm |
2.75 |
+12
-15 |
1.32 |
3.25 |
+12
-15 |
1.51 |
14 |
11.4~15.0 |
|
20 |
3/4 |
26.8 |
2.75 |
1.71 |
3.50 |
2.09 |
14 |
12.7~16.3 |
|
25 |
1 |
33.5 |
3.25 |
2.51 |
4.00 |
3.00 |
11 |
14.5~19.1 |
|
32 |
11/4 |
42.3 |
3.25 |
3.25 |
4.00 |
3.90 |
11 |
16.8~21.4 |
|
40 |
11/2 |
48.0 |
3.50 |
3.98 |
4.25 |
4.72 |
11 |
16.8~21.4 |
|
50 |
2 |
60.0 |
±1% |
3.50 |
5.06 |
4.50 |
6.33 |
11 |
21.1~25.7 |
|
65 |
21/2 |
75.5 |
3.75 |
6.87 |
4.50 |
8.10 |
11 |
23.2~30.2 |
|
80 |
3 |
88.5 |
4.00 |
8.61 |
4.75 |
10.07 |
11 |
26.3~33.3 |
|
100 |
4 |
114.0 |
4.00 |
11.20 |
5.00 |
13.79 |
11 |
32.3~39.3 |
|
125 |
5 |
140.0 |
4.00 |
13.80 |
5.50 |
18.66 |
11 |
36.6~43.6 |
|
150 |
6 |
165.0 |
4.50 |
18.31 |
5.50 |
22.13 |
11 |
36.6~43.6 |
|
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