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|
公称尺寸／mm |
外径／mm |
外径允许偏差／mm |
壁 厚/mm |
壁厚允许偏差／mm |
理论质量(不计管接头)／(kg／m) |
|
13 |
12.70 |
±O.20 |
1.60 |
±0.15 |
O.438 |
|
16 |
15.88 |
±O.20 |
1.60 |
±O.15 |
O.581 |
|
19 |
19.05 |
±O.25 |
1.80 |
±0.20 |
0.766 |
|
25 |
25.40 |
±O.25 |
1.80 |
±0.20 |
1.O48 |
|
32 |
31.75 |
±O.25 |
1.80 |
±0.20 |
1.329 |
|
38 |
38.10 |
±0.25 |
1.80 |
±0.20 |
1.611 |
|
51 |
50.80 |
±O.30 |
2.00 |
±0.24 |
2.407 |
|
64 |
63.50 |
±O.30 |
2.50 |
±0.30 |
3.760 |
|
76 |
76.20 |
±O.30 |
3.20 |
士O.35 |
5.761 |
| ||