| Specification | OD: 219-2032mm WT: 1.2-30mm |
| Technique | SSAW (spiral submerged arc process) |
| Material | API 5L / A53 GR BQ195 Q235 Q345S235 S355 |
| Surface treatment | External: 3PE, bitumen, epoxy powderInternal: Epoxy, bitumen, cement |
| NDT testing | Hydrostatic testUT testRT test |
| End treatment | Bevel |
| DN | Epoxy coating/um | Adhesive coating/um | Minimum thickness for PE coating(mm) |
|
|
| Common | Enhanced |
| DN≤100 | ≥120 | ≥170 | 1.8 | 2.5 |
| 100 |
|
| 2.0 | 2.7 |
| 250 |
|
| 2.2 | 2.9 |
| 500≤DN<800 |
|
| 2.5 | 3.2 |
| DN≥800 |
|
| 3.0 | 3.7 |
External Single-layer Epoxy Executive SY/T0315
| Number | Coating level | Minimum thickness(um) |
| 1 | Normal level | 300 |
| 2 | Reinforce level | 400 |
Internal FBE Executive SY/T0442
| Pipeline operation requirements | Internal coating thickness(um) |
| Drap reduction pipeline | ≥50 |
| Anti-corrosion pipeline | Normal | ≥250 |
| Reinforce | ≥350 |