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- Weld Seam
The weld area of an EN 10217-1 pipe is critical in ensuring the structural integrity of the pipe. Any cracks, lack of fusion, or lack of penetration can result in the pipe failing to meet the required specifications. As a result, repairs to the weld seam are not permitted. However, if the repairs are done per an agreed documented procedure, they may be allowed. This ensures that the integrity of the pipe is maintained and that it can continue to meet the required specifications.
- Tube Surface
The EN 10217-1 pipe has a surface requirement that demands it to be free of external and internal surface defects that can be detected by visual examination. Any surface imperfections that require dressing shall be able to be identified and it is only permissible to dress them by grinding or machining. All dressed areas need to blend smoothly into the contour of the tube. If any surface imperfection is deeper than 5% of the wall thickness T or 3mm, whichever is smaller, then it needs to be dressed.
| Steel Grade | Chemical Composition in % in mass. | |||||
| Max C % | Max Si % | Max Mn % | Max P % | Max S % | Max Cr % | |
| P265TR2 | 0,200 | 0,400 | 1,400 | 0,025 | 0,020 | 0,30 |
| Steel Grade |
Yield Strength ReH
for T wall thickness in mm (Mpa)
|
Tensile strength Rm (Mpa) |
Elongation at breakage A % min. | ||
| T ≤16 | 16<T≤ .40 | Longitudinal | Transversal | ||
| P265TR2 | 265 | 255 | 410-570 | 21 | 19 |
| Number of Tubes per Test Unit | |
| Outside diameter (mm) | Maximum number of tubes per test unit |
| D | Quality TR1 |
| D≤114.3 | 400 |
| 114.3＜D≤323.9 | 200 |
| 323.9＜D≤660 | 100 |
| D＞660 | 50 |
| Wall thickness T | Maximum height of the weld seam (mm) | |
| Inside | Outside | |
| T≤12.5 | 3.5 | 3.5 |
| T＞12.5 | 4.8 | 4.8 |
| NPS |
Outside Diameter
(mm)
|
Wall Thickness (mm) |
Tolerances on the outside diameter (mm) |
Mass per unit of length (Kg/m) | |
| Max. | Min. | ||||
| 1” | 33,7 | 2,30 | 34,0 | 33,4 | 1.78 |
| 1.25” | 42,4 | 2,30 | 42,7 | 42,1 | 2,27 |
| 1.5” | 48,3 | 2,30 | 48,6 | 48,0 | 2,61 |
| 2” | 60,3 | 2,30 | 60,6 | 60,0 | 3.29 |
| 2.5” | 76,1 | 2.60 | 76,4 | 75,8 | 4.71 |
| 3” | 88,9 | 2.90 | 89,2 | 88,6 | 6,15 |
| 4” | 114,3 | 3,20 | 114,6 | 114,0 | 8.77 |
| 5” | 139,7 | 3.60 | 140,0 | 139,4 | 12.1 |
| 6” | 168,1 | 4,00 | 168,7 | 167,9 | 16.21 |
| 8” | 219,1 | 5,00 | 219,5 | 218,7 | 26.4 |
| 10’ | 273.1 | 5.00 | 275.15 | 271.05 | 33.1 |
| 12’ | 323.9 | 5.60 | 326.33 | 321.47 | 43.97 |
| NPS |
Outside
Diameter (mm)
|
Minimum Wall
Thickness (mm) with Standard
Tolerance
|
Tolerances on the outside diameter (mm) | Mass per unit of length (Kg/m) | |
| Max. | Min. | ||||
| 1” | 33,7 | 2,60 | 34,0 | 33,4 | 1,99 |
| 1.25” | 42,4 | 2,60 | 42,7 | 42,1 | 2,55 |
| 1.5” | 48,3 | 2,60 | 48,6 | 48,0 | 2,93 |
| 2” | 60,3 | 2,60 | 60,6 | 60,0 | 3,70 |
| 2.5” | 76,1 | 2.6 | 76,4 | 75,8 | 4.71 |
| 3” | 88,9 | 2.9 | 89,2 | 88,6 | 6,15 |
| 4” | 114,3 | 3,20 | 114,6 | 114,0 | 8.77 |
| 5” | 139,7 | 3.6 | 140,0 | 139,4 | 12.1 |
| 6” | 168,1 | 4,00 | 168,7 | 167,9 | 16.21 |
| 8” | 219,1 | 4,50 | 219,5 | 218,7 | 23,82 |
| 10’ | 273.1 | 5 | 275.15 | 271.05 | 33.1 |
| 12’ | 323.9 | 5.6 | 326.33 | 321.47 | 43.97 |
- Outside Diameter and Wall Thickness Tolerance on EN 10217-1 P265TR2
| Outside Diameter | Tolerance on | ||
| Outside Diameter | Wall Thickness | ||
| D | D | T ≤ 5 | 5 ＜ T ≤ 40 |
| D ≤ 219.1 |
±1% or ±0.5
Whichever is the greater
|
±10% or ±0.3 Whichever is the greater |
±8% or ±2 Whichever is the greater |
| D ＞ 219.1 |
±0.75% or ±6 Whichever is the greater |
||
- Length Tolerance on EN 10217-1 P265TR2
| Length | Tolerances on Exact Length for Outside Diameter (D) | |
| L | ＜ 406.4 | ≥ 406.4 |
| L ≤ 6000 | +10, 0 | +25, 0 |
| 6000 ＜ L ≤ 12000 | +15, 0 | +50, 0 |
| L ＞ 12000 | + by agreement, 0 | + by agreement, 0 |
