|
外徑 |
壁厚 | |||||||||
|
7 |
10 |
11.5 |
12 |
13 |
15 |
16 |
20 |
20.5 |
26 | |
|
76 |
× |
|
|
|
|
|
|
|
|
|
|
(77) |
|
× |
|
|
|
|
|
|
|
|
|
77.5 |
|
× |
|
|
|
|
|
|
|
|
|
(80) |
|
|
× |
|
|
|
|
|
|
|
|
92 |
|
|
|
× |
|
|
|
|
|
|
|
95 |
|
|
|
× |
× |
|
|
|
|
|
|
96 |
|
|
|
× |
|
× |
|
|
|
|
|
102 |
|
|
|
× |
|
|
|
|
|
|
|
108 |
|
|
|
|
|
× |
|
|
|
|
|
114 |
|
|
|
|
|
|
× |
× |
|
× |
|
(115) |
|
|
|
|
|
|
|
|
× |
|
|
(116) |
|
|
|
|
|
|
|
|
× |
|
|
(120) |
|
|
|
|
|
|
|
|
× |
|
|
121 |
|
|
|
|
|
|
|
|
× |
|
|
(122) |
|
|
|
|
|
|
|
|
× |
|
|
供貨條件 |
按外徑和壁厚供應(yīng)的鋼管 |
按外徑、內(nèi)徑和壁厚差供應(yīng)的鋼管 |
對(duì)于外徑為77mm、內(nèi)徑為57mm、壁厚為10mm的鋼管 |
| ||||
|
直徑和壁厚允許偏差 |
鋼管尺寸／mm |
允許偏差(％) |
鋼管尺寸 |
允許偏差 |
鋼管尺寸 |
允許偏差 |
| |
|
外 徑 |
±1.0 |
外徑 |
±1.0% |
外徑 |
+1.0
-0.5mm |
| ||
|
壁厚 |
≤7 |
+15
-9 |
||||||
|
內(nèi)徑 |
±1.75% |
內(nèi)徑 |
+1.5
-0.5mm |
|||||
|
>7-15 |
+12.5
-10 |
| ||||||
|
>15 |
+12.5
-7.5 |
壁厚差 |
≤15%
公稱壁厚 |
壁厚差 |
≤15%
公稱壁厚 |
| ||