| Type: | Welded |
|---|---|
| Technique: | Extruded |
| Material: | Carbon Steel |
|
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3PE Anti-corrosion steel pipe
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Product name |
Three PE anti-corrosive pipe |
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Length |
6m-12m ,or by customer's requirements |
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Laid way |
Buried |
|
Application |
Water,oil gas, Coal to gas |
|
Production Standard |
The national standard GB/T23257-2009 |
| Internal FBE Coating | |||||
| DN(mm) | FBE(μm) | ||||
| 100~500 | >350 | ||||
| 550~750 | >400 | ||||
| ≥800 | >450 | ||||
| External 3PE Coating | |||||
| DN(mm) | Expoxy powder coated(μm) | Adhesive(μm) | Min wall thickness of anticorrosive coating(mm) | ||
| 2 layer | 3 layer | Usual grade | Strengthen grade | ||
| ≤100 | ≥80 | 200~400 | 170~250 | 1.8 | 2.5 |
| 100 | ≥80 | 200~400 | 170~250 | 2 | 2.7 |
| 250 | ≥80 | 200~400 | 170~250 | 2.2 | 2.9 |
| 500 | ≥80 | 200~400 | 170~250 | 2.5 | 3.2 |
| ≥800 | ≥80 | 200~400 | 170~250 | 3 | 3.7 |
Indexes of anti-corrosive layer
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Item |
Indexes |
|
|
Two layer |
Three layer |
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|
Peel strength(N/cm) (20ºC±10ºC)/(50ºC±5ºC) |
≥70 ≥35 |
≥100(cohesive failure) ≥70 (cohesive failure) |
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Cathodic disbonding (65ºC,48h)/(mm) |
≤15 |
≤6 |
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Cathodic disbonding(the highest temperature,30d)/(mm) |
≤25 |
≤15 |
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Impact strength(J/mm) |
≥8 |
|
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Counter bending(-20ºC,2.5°) |
No crack |
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1.Bundle packing.
2.Bevel end or plain end or varnished :Customized
3.Marking: Customized
4.Painting varnish coating on the pipe.
5. Plastic caps at ends
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