steel fluid pipe tolerance
PIC-(steel fluid pipe tolerance)
Carbon steel fluid pipe tolerance.
| Type of steel tube |
Steel tube size
mm |
Deviation |
| Ordinary grade |
Senior |
| Hot rolling (extrusion, expansion) tube |
Outside diameterD |
All |
+1%（Minimum+0.50） |
- |
| Wall thicknessS |
All |
+15%（Minimum+0.45）
-12.5%（Minimum-0.40） |
- |
| Cold drawing (rolling) tube |
Outside diameterD |
6~10 |
+0.20 |
+0.15 |
| >10~30 |
+0.40 |
+0.20 |
| >30~50 |
+0.45 |
+0.30 |
| >50 |
+1% |
+0.8% |
| Wall thicknessS |
≤1 |
+0.15 |
+0.12 |
| >1~3 |
+15%
-10% |
+12.5%
-10% |
| >3 |
+12.5%
-10% |
+10% |
| Note: the outer diameter is not less than 351mm of the thermal expansion tube, the wall thickness allows the deviation of +18% |
|
