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FBE Coated Steel Pipe Suppliers in China - High-Quality Factory Direct Corrosion Protection Solutions
Detailed Description of FBE Coated Steel Pipe
Fusion Bonded Epoxy (FBE) coating is a high-quality external anti-corrosion coating. The coating works by electrostatically spraying a specially formulated epoxy resin powder onto a pre-treated (typically sandblasted to Sa2.5 grade) sample of steel pipe. This treated pipe sample has been preheated (to approximately 200 - 250°C) too. The powder will melt as it impacts the pre-heated surface and the melted powder will flow and cure to form a tough, continuous, seamless protective film. This process is called "fusion bonding" - a bonding for the coating to the steel pipe that includes both chemical and physical bonding.
Key Parameters
| Parameter | Details |
|---|---|
| Coating Type | Single Layer FBE / Dual Layer FBE (2LFBE) |
| Coating Standards | CAN/CSA Z245.20, ISO 21809-2, DIN 30670, NACE RP0394, SY/T 0315, GB/T 23257, SY/T 0315, AWWA C213, NACE SP0394 |
| Applicable Base Pipe | Seamless or welded steel pipes of standards like API 5L, ASTM A106, ASTM A53, etc. |
| Size Range | DN15 - DN2000 (1/2" - 80") |
| Coating Color | Green, Grey, Red, Blue, etc. |
| Minimum Coating Thickness | Typically 300µm, can be increased upon request |
| Adhesion | Grade 1-2 (Pull-off test or cross-cut test) |
| Impact Resistance | ≥1.5 J (varies by standard and thickness) |
| Cathodic Disbondment | Disbondment radius ≤ 8mm under specified conditions |
Frequently Asked Questions
What is the primary benefit of FBE coating on steel pipes?
FBE coating provides exceptional anti-corrosion protection through a fusion-bonding process that creates a seamless, tough protective film with high chemical and physical adhesion to the steel surface.
What temperature is required for the FBE coating process?
The steel pipe must be preheated to approximately 200 - 250°C before the epoxy powder is electrostatically sprayed onto the surface to ensure proper melting and bonding.
Which international standards do your FBE coatings comply with?
Our FBE coated pipes meet major global standards including CAN/CSA Z245.20, ISO 21809-2, DIN 30670, NACE RP0394, and AWWA C213, among others.
Can FBE coating be applied to all pipe sizes?
Yes, we provide FBE coating for a wide range of sizes, typically from DN15 (1/2") up to DN2000 (80"), applicable to both seamless and welded steel pipes.
What is the standard thickness of an FBE coating?
The minimum coating thickness is typically 300µm, but this can be increased based on specific project requirements or environmental conditions.
How is the quality of the FBE bond tested?
Quality is verified through adhesion tests (Pull-off or cross-cut tests, aiming for Grade 1-2), impact resistance tests (≥1.5 J), and cathodic disbondment evaluations.