FBE Coated Steel Pipe

FBE Coated Steel Pipe (Fusion Bonded Epoxy)

Focus: Chemical bonding, high-temperature stability, and anti-corrosion precision.

Introduction:

As a specialist in high-performance coatings, we provide FBE Coated Steel Pipe manufactured to the rigorous requirements of AWWA C213 and ISO 21809-2. Unlike traditional coatings, FBE forms a dense chemical bond with the steel surface at temperatures between 230°C and 250°C, creating a permanent barrier against corrosion. Our FBE-coated pipes are highly recommended for pipelines operating at elevated temperatures (up to 110°C) and for projects utilizing advanced Cathodic Protection (CP) systems, as the coating prevents electrical shielding.Standard Compliance: Fully tested for adhesion, flexibility, and cross-section porosity.

Dual-Layer Option: Available with an Abrasion Resistant Overcoat (ARO) for Horizontal Directional Drilling (HDD) and rocky terrains.

Quality Assurance: 100% holiday detection and thermal property verification 

Minimum FBE coating thikness

Nominal Size (DN)	Outside Diameter (OD)	Standard Duty (min. μm)	Heavy Duty (min. μm)
≤ DN 100	≤ 114.3 mm	300 μm	450 μm
DN 100 < DN ≤ 250	114.3 < OD ≤ 273.1 mm	350 μm	500 μm
DN 250 < DN ≤ 500	273.1 < OD ≤ 508.0 mm	400 μm	600 μm
DN 500 < DN ≤ 800	508.0 < OD ≤ 813.0 mm	450 μm	700 μm
> DN 800	> 813.0 mm	500 μm	800 μm

Final Performance Specification Assessment Table for FBE Coated Steel Pipes

No.	Property / Item	Unit	Single Layer FBE	Dual Layer FBE	Test Method
1	Appearance	—	Smooth, uniform color, no bubbles, cracks, or shrinkage. Slight orange peel texture allowed.	Smooth, uniform color, no bubbles, cracks, or shrinkage. Slight orange peel texture allowed.	Visual
2	Thermal Properties
	∣ΔTg∣	℃	≤5	≤5 (Base & Top)	Annex B
	Curing Degree	%	≥95	≥95 (Base & Top)	Annex B
3	Cathodic Disbondment (65±3℃, 48h, -1.5V)	mm	≤5	≤5	SY/T 4113.3
4	Cathodic Disbondment (65℃ or Max Temp, 28d, -1.5V)	mm	≤15	≤15	SY/T 4113.3
5	Bending Test (Test Temp ±3℃)	—	3°, No cracks	Standard: 2°, No cracksReinforced: 1.5°, No cracks	SY/T 4113.5
6	Impact Resistance	—	2 J (-30±3℃), No holidays	Standard: 10 J (20±3℃), No holidaysReinforced: 15 J (20±3℃), No holidays	Annex F
7	Cross-section Porosity	Grade	1 ~ 3	1 ~ 3	Annex G
8	Interface Porosity	Grade	1 ~ 3	1 ~ 3	Annex G
9	Adhesion (75±3℃, 24h)	Grade	1 ~ 2	1 ~ 2	Annex H
10	Adhesion (75±3℃, 28d)	Grade	1 ~ 3	1 ~ 3	Annex H
11	Gouge Resistance (20±3℃)	—	—	Standard (30kg): ≤350μm, No holidaysReinforced (50kg): ≤500μm, No holidays	SY/T 4113.1
12	Abrasion Resistance (1000g/1000r, CS-17)	mg	≤100	—	GB/T 1768
13	Dielectric Strength	MV/m	≥30	≥30	GB/T 1408.1
14	Volume Resistivity	Ω⋅m	≥1×1013	≥1×1013	GB/T 31838.2
15	CD after Bending (20±3℃, 28d, -1.5V)	—	2.5°, No cracks	1.5°, No cracks	Annex I
16	Chemical Resistance (20±3℃, 90d)	—	No discoloration, bulging, softening, bubbling, peeling, cracking, stripping, or significant reduction in adhesion.	No discoloration, bulging, softening, bubbling, peeling, cracking, stripping, or significant reduction in adhesion.	SY/T 4113.9

FBE Coating Technical Details Explained

Parameter	Requirement / Detail	Reference Standard
Common Standards	AWWA C213, CAN/CSA Z245.20, AS 3862, ISO 21809-2	International Specs
Surface Prep	Sa 2.5 (Near-White Metal)	ISO 8501-1
Anchor Profile	50 μm – 100 μm	Surface Roughness
Coating Thickness	300 μm – 600 μm (Typical: 400 μm / 16 mils)	Project Specific
Pre-heat Temp	230°C to 250°C	Induction Heating

FBE Coating Process For Steel Pipes

Frequently Asked Questions

1. How do you check FBE coating quality before pipe shipment?

We implement internal quality control from raw material review to final shipment release. For orders related to oil and gas pipelines, buried transmission service, and anti-corrosion water lines, buyers usually expect the product to match both the application and the supporting FBE coated pipe, fusion bonded epoxy, API 5L line pipe, and single-layer coating systems requirements.

2. Do you provide coating inspection records, MTC, and third-party inspection for FBE pipe?

Yes. We can provide Mill Test Certificates according to EN 10204 3.1, and 3.2 can be arranged when required. Third-party inspection by agencies such as SGS, BV, or ABS can also be accepted before shipment.

3. How do you reduce coating damage during transport and loading of FBE coated pipe?

We use export-oriented packing and loading methods based on the product type, including end protection, stable bundling or blocking, waterproof wrapping where needed, and careful loading control. The goal is to reduce rust, scratches, bevel damage, face damage, coating damage, thread damage, or handling impact during domestic transport and long sea shipment.

4. For what kind of pipeline projects is FBE coated pipe most commonly selected?

This product is commonly supplied for oil and gas pipelines, buried transmission service, and anti-corrosion water lines, with buyer demand often tied to FBE coated pipe, fusion bonded epoxy, API 5L line pipe, and single-layer coating systems.