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Coal tar epoxy steel pipe

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Coal Tar Epoxy (CTE) coated steel pipes offer superior chemical corrosion resistance, impermeability, and longevity. Designed for extreme corrosive environments such as wastewater conveyance, chemical pipelines, and marine engineering, they provide long-term corrosion protection for buried, underwater, and industrial pipelines. This helps customers reduce maintenance costs and ensures safe system operation.

Product name:

Galvanized seamless pipe

Material:

16Mn

Warehouse:

Tianjin

Surface treatment:

Hot-dip galvanizing

Keyword:

Coal tar epoxy steel pipe

Quan Ge Pipe Industry

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Quan Ge Pipe Industry
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Details description

Core Product Advantages

Superior Chemical Corrosion Resistance

Coal tar epoxy coating (CTE) combines the adhesion of epoxy resin with the impermeability of coal tar, withstanding strong acids (H₂SO₄, HCl), strong alkalis (NaOH), salt spray, organic solvents, and microbial erosion. Corrosion protection life ≥50 years (underground environment).

Excellent Mechanical Properties

High coating hardness (≥3H), good flexibility (180° bending without cracking), impact resistance ≥5J, resistant to construction backfilling, ground settlement, and mechanical wear.

Upgraded Environmental Protection and Safety

Uses a low-VOC environmentally friendly formula, complies with RoHS directives, is non-toxic and harmless, and is suitable for wastewater treatment and chemical media transportation.

Wide Temperature Range Adaptability

Operating temperature -30℃ to 120℃, resistant to wet heat alternation and freeze-thaw cycles, suitable for extremely cold, tropical, and marine climates.

 

Application Areas

Municipal Environmental Protection: Wastewater treatment plant pipelines, leachate collection pipes, industrial wastewater discharge pipes.

Chemical Industry: Acid and alkali storage tank liners, underground pipe networks in chemical parks, electroplating solution pipelines.

Marine Engineering: Seawater desalination systems, port and dock sewage pipes, submarine cable protective casings.

Energy Sector: Desulfurization slurry pipelines in coal-fired power plants, oilfield oil-containing wastewater injection pipelines.

Mining Engineering: Pulp pipelines, tailings pond anti-seepage and discharge pipes.

 

Technology and Quality Assurance

International Standard Processes:

Uses high-pressure airless spraying technology, coating thickness 300-1000μm, complies with ISO 21809, GB/T 23257 and other standards, supports single or double layer coating.

Strict Testing Procedures:

Spark testing (≥5kV no leakage points), adhesion test (≥10MPa grid method), cathodic disbondment (≤8mm, 28 days), ensuring coating integrity.

Customized Services:

Supports steel pipe pretreatment (sandblasting to Sa2.5 grade), simultaneous inner and outer wall coating, and flange and weld area enhanced corrosion protection design.

Fast Delivery Capability:

Covers Φ50mm-Φ3000mm diameter, wall thickness 4mm-30mm, relying on a fully automatic coating line, delivery cycle shortened by 15%.

Quan Ge Pipe Industry - Using "black gold" as armor to resist corrosion!

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Qualification certification

Quality Management System Certification Certificate
Quality Management System Certification Certificate
Environmental Management System Certification Certificate
Environmental Management System Certification Certificate
Occupational Health and Safety Management System Certification Certificate
Occupational Health and Safety Management System Certification Certificate
Quan Ge Pipe Industry

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Application fields

Independent simulation

Petrochemicals

Petrochemicals

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Aerospace

Aerospace

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Energy equipment

Energy equipment

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Oil/gas/water pipelines

Oil/gas/water pipelines

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Building construction

Building construction

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Dredging & piling works

Dredging & piling works

Quan Ge Pipe Industry

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FAQ

Q

How to perform daily maintenance and inspection of steel structures during use?


A
Regularly check components for rust, deformation, loose bolts, etc., promptly repair damaged areas, keep the drainage system unobstructed, and regularly repaint with anti-corrosion paint.
Q

What preparatory work needs to be done before installing a steel structure?


A
Component quality and dimensional deviations need to be checked, connecting parts cleaned, installation equipment and tools prepared, and installation plans and emergency response plans formulated.
Q

What are the main differences between light steel structures and heavy steel structures?


A
Lightweight steel structures use thinner steel sections (such as cold-formed steel) and are mostly used for buildings with smaller loads; heavy steel structures use thicker steel sections and are suitable for projects with large loads and spans.
Q

How are the column spacing and span of steel structure factory buildings usually determined?


A
Needs to be comprehensively determined considering production process requirements, equipment layout, material specifications, and economics. Common column spacing is 6-12 meters, and the span is 15-30 meters.
Q

What changes occur in steel structures under high-temperature environments, and how can these be addressed?


A
High temperatures reduce steel strength. Fire protection measures can include applying fire-retardant coatings, encasing with fireproof panels, and installing water spray systems.
Q

What are the common structural forms of large-span steel structures?


A
Common forms include truss structures, space frame structures, grid shell structures, cable-stayed structures, and membrane structures.
Quan Ge Pipe Industry

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