Product Category

Latest news list

How to bend exhaust pipe efficiently without kinks and damage?

You need custom curves for a specific project,but bending steel often results in wrinkles or cracks,It is frustrating when a simple modification ruins high-quality steel,I will show you how to get the perfect angle,To learn how to bend exhaust pipe effectively,you must support the internal structure to prevent collapse,For manual bending
How to Prevent Natural Gas Pipeline Corrosion: Best Practices and Modern Solutions

Natural gas is a highly flammable and explosive energy source,and its safe transportation is a matter of great importance,Among all transportation methods,long-distance pipelines are considered the safest,fastest,and most cost-effective solution,However,during the operation of these pipelines
The Application and Technical Performance of PE Coated Pipe in Building Water Supply Systems

In modern construction and residential water supply systems,PE coated pipe has become one of the most reliable and widely used materials,Known for its corrosion resistance,durability,and flexibility,it provides a practical solution for both hot and cold water pipelines,Below,we explore the operating conditions,installation considerations,and technical performance of PE coated pipes in building applications,

3PE Coated Steel Pipe

Name: 3PE Coated Steel Pipe
Brand: Ever Nickel
Price: 99.99 USD
Availability: InStock
Rating: 4.8 (50 reviews)

Pipe Type:PE Coated Pipe, 2PE Coated Pipe, 3PE Coated Pipe

Application:Used for for natural gas, petroleum, water & sewage, and pipe systems

Specification:OD: 219mm~2020mm

WT: 5mm~25mm

LENGTH: 5.8-12m

Coating Standard: DIN 30670, DIN 30671, DIN 30678, SY/T0413-2002 etc.

Pipe Type: Submerged Arc Welded (LSAW/SSAW), Electrci Resistance Welded,SMLS

Ends: Plain,Beveled, Thread With Couplings Or Sockets; Plastic Caps And Steel Rings Can Be Provided if possible

Surface: Two/Three Layer Polyethylene Coating (2mm~4.5mm)

Packing: Waterproof Paper wrapped, Steel Strips bundled, two tags on each bundle

Email To Us

Get A Quote +

Description
Specification
Standard
Process
Packing

3PE Coated Steel Pipe (Three-Layer Polyethylene)

Introduction:Our3PE Coated Steel Pipeis the gold standard for long-distance buried oil, gas, and water pipelines. Engineered to meet international standards such asDIN 30670andISO 21809-1, our 3PE system provides a 50-year service life by combining the chemical adhesion of Fusion Bonded Epoxy with the robust physical protection of High-Density Polyethylene. This multilayer structure ensures zero moisture permeability and superior resistance to soil stress and mechanical impact, making it the preferred choice for major infrastructure projects in regions like Africa and the Middle East.

Structure:High-performance FBE primer, grafted copolymer adhesive, and a tough HDPE topcoat.

Key Benefits:Exceptional cathodic disbondment resistance and high impact strength.

Applications:Mainline transmission for oil, gas, and high-pressure water networks.

3PE Steel Pipe

Pipe Type:PE Coated Pipe, 2PE Coated Pipe, 3PE Coated Pipe

Application:Used for for natural gas, petroleum, water & sewage, and pipe systems

Specification:OD: 219mm~2020mm

WT: 5mm~25mm

LENGTH: 4mtr, 6mtr, 12mtr, 18mtr, 21mtr

MOQ: 1 Ton

Coating Standard:DIN 30670, DIN 30671, DIN 30678, SY/T0413-2002 etc.

Pipe Type: Submerged Arc Welded (LSAW/SSAW), Electrci Resistance Welded

Ends:Plain,Beveled, Thread With Couplings Or Sockets; Plastic Caps And Steel Rings Can Be Provided if possible

Surface:Two/Three Layer Polyethylene Coating (2mm~4.5mm)

Packing:Waterproof Paper wrapped, Steel Strips bundled, two tags on each bundle

Technical datas for final pipes

Test Property	Unit	Requirement (Standard)	Test Method
Peel Strength (Adhesion)	N/cm	≥100 (at 20°C) / ≥40 (at 50°C)	DIN 30670
Impact Resistance	J/mm	≥7	DIN 30670
Indentation Resistance	mm	≤0.2 (at 23°C) / ≤0.3 (at 50°C)	DIN 30670
Elongation at Break	%	≥600	ASTM D638
Cathodic Disbondment	mm	≤7 (at 65°C, 24h)	ASTM G42
Holiday Detection	kV	25 kV (No breakdown)	ASTM G62
Surface Resistivity	Ω	≥1012	DIN 30670

Overview of 3PE anti-corrosion steel pipe technology details

Parameter	Technical Detail / Requirement
Applicable Pipe Types	Seamless (SMLS), LSAW, SSAW, ERW
Diameter Range	88.9 mm – 2020 mm (Standard range)
Standard References	DIN 30670, CAN/CSA-Z245.21, ISO 21809-1, NF A49-710
Coating Thickness	Generally 2.0 mm to 3.7 mm (Depending on pipe diameter and project requirements)
Service Temperature	-40°C to +80°C
Surface Preparation	Sa 2.5 (Near-White Metal Blast Cleaning) as per ISO 8501-1
Anchor Profile	50 μm – 100 μm (Roughness for optimal FBE adhesion)

DIN 30670 Coating Thickness Table

Nominal Diameter (DN)mm	Outside Diameter (OD)mm	Type N (Normal) Class	Type S (Special) Class
Nominal Diameter (DN)mm	Outside Diameter (OD)mm	Min. Thickness (mm)	Min. Thickness (mm)
≤ DN 100	≤ 114.3	1.8	2.5
DN 100 < DN ≤ 250	114.3 < OD ≤ 273.1	2	2.7
DN 250 < DN ≤ 500	273.1 < OD ≤ 508.0	2.2	2.9
DN 500 < DN ≤ 800	508.0 < OD ≤ 813.0	2.5	3.2
> DN 800	> 813.0	3	3.7

Minimum 3LPE layer thickness range

Mkg/m	3LPELayerthickness(mm)
Mkg/m	Class A1	Class A2	Class A3	Class B1	Class B2	Class B3	Class C1	Class C2	Class C3
M≤15	18	21	26	13	18	23	13	17	21
15	20	24	30	15	21	27	15	19	24
50	24	28	35	18	25	31	18	23	28
130 300	2,6	3,2	3,9	2,2	2,8	3,5	2,2	2,5	3,2
300	32	38	47	25	33	42	25	30	38
Please note:The total required thickness may be reduced for SAW pipes by a maximum of 10%on joint seam. Class 1 and 2 for medium and light applications (sandy soil). Class 3-application in extreme conditions(rocky soil)or underwater.

Minimum thickness of 3LPE layer finished coating

Steel Pipe Sizes						Min Coating Thickness in mm
≤103/4”(273.1 mm)						2.5
>123/4”(323.9 mm)to≤18”(457 mm)						2.8
>20"(508.0 mm)to≤30"(762 mm)						3.0
>32"(813.0 mm)						3.3