API 5L*70 Welded 3PE Coated Carbon Spiral Welded Steel Pipe for Oil and Gas Line

• Type: Welded
• Technique: Extruded
• Material: Carbon Steel
• Surface Treatment: Antiseptical
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Fluid Pipe
• Section Shape: Round
• Certificate: ISO9001
• Surface: 3PE
• End Protector: Plastic Pipe Cap
• Shape: Seamless Steel Pipe, Spiral, Straight, Seamless
• Useage: Water Supply
• Transport Package: Standard Packing
• Specification: customer′s requirement
• Trademark: Zhong Ding
• Origin: China
• Production Capacity: 9500 Ton/Tons Per Week

Product Description

Detailed Photos

3PE Anti-corrosion steel pipe

3 kinds of working pipe:

1).seamless steel pipe

2).spiral steel pipe

3).straight seam steel pipe

3 layers of outer wall surface:

*1st layer of epoxy powder (FBE> 100um)

*2nd layer of adhesive (AD)170~250um

*3rd layer polyethylene (PE) is 1.8~3.7mm

Other Anti-corrosion:
IPN8710
FBE Epoxy powder
Epoxy coal pitch



 

Product specification

Product name	Three PE anti-corrosive pipe
Length	6m-12m ,or by customer's requirements
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

Item	Indexes
	Two layer	Three layer
Peel strength(N/cm) (20ºC±10ºC)/(50ºC±5ºC)	≥70 ≥35	≥100(cohesive failure) ≥70 (cohesive failure)
Cathodic disbonding (65ºC,48h)/(mm)	≤15	≤6
Cathodic disbonding(the highest temperature,30d)/(mm)	≤25	≤15
Impact strength(J/mm)	≥8
Counter bending(-20ºC,2.5°)	No crack

 

Packaging & Shipping

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