中国国家标准GB/T3091-93 CHINA NATIONAL STANDARD GB/T3091-93
GB/T3091-93 低压流体输送用镀锌焊接钢管
THE Gavanized welded steel pipe up to CHINA NATIONAL STANDARD GB/T3091-93
for Low Pressure Service
|
公径口称 |
外 径 |
普通钢管 |
加厚钢管 |
螺 纹 |
|
DN
mm |
in |
公称
尺寸 |
允许
偏差 |
Wall Thickness
|
理论
重量 |
Wall Thickness
|
理论
重量 |
每寸
牙数 |
长度 |
|
公称尺寸 |
允许偏差 |
公称尺寸 |
允许偏差 |
|
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 |
成品长度：6000mm(0~+20mm)
Length of pipe:6000mm(0~+20mm) |
广州市海珠区珠江镀锌钢管厂 版权所有 
