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Malla de alambre de acero galvanizado para gasoductos - Madein Mesh: el fabricante y proveedor de mallas de alambre en China

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Malla de alambre de acero galvanizado para gasoductos

Concrete Weight Coating Mesh – Pipeline Reinforced Mesh for Subsea & Offshore Applications

Descripción general del producto

Pipeline Reinforced Mesh, also known as Concrete Weight Coating (CWC) Malla, is a specialized welded steel mesh engineered to reinforce concrete weight coatings on subsea and offshore oil and gas pipelines. This corrugated structural mesh provides the critical tensile reinforcement that keeps the concrete coating intact throughout transport, installation, and long-term seabed service.

The defining feature of CWC mesh is the deep crimping (wave structure) of longitudinal wires before welding. This wave geometry locks into wet concrete, distributing stress evenly across the coating and preventing cracking or spalling under extreme marine conditions.

  • Detalles del producto

Características clave

Característica Benefit
High Tensile Strength Manufactured from high-strength low-carbon steel wire to withstand construction stresses and pipeline operating pressures
Resistencia a la corrosión Galvanized coating (hot-dip or electro-galvanized per ASTM) provides excellent rust and corrosion protection for 20+ years of service life
Superior Concrete Bonding Deeply crimped line wires create mechanical interlock with concrete, ensuring uniform adhesion and stress distribution
Fácil instalación Pre-welded mesh panels can be rapidly wrapped around pipes during the concrete coating process
Rentable Reduces the need for traditional steel reinforcement, lowering material and labor costs over the pipeline lifecycle
Durable Construction Tight, firm weld joints and neat, regular mesh appearance facilitate convenient transportation, stacking, and handling

Product Specifications

Material & Construcción

Parámetro Specification
Material Low-carbon mild steel wire with galvanized coating
Galvanizing Galvanizado en caliente (meeting ASTM A123) or electro-galvanized
Diámetro del alambre (Line) 2.0 mm – 3.5 milímetros (customizable up to 4.0 mm for extra-large diameters)
Diámetro del alambre (Cross) 2.0 mm – 4.5 milímetros
Line Wire Configuration Deeply crimped (wave structure), 6, 8, o 10 wires per mesh
Cross Wire Spacing Standard 50.8 milímetros (2 pulgadas) o 92.4 milímetros (long spacing option)
Standard Mesh Width 190.5 milímetros (7.5 pulgadas) o 241.3 milímetros
Roll Length 140 metro, 210 metro, 280 metro (custom lengths available)
Exposed Wire Edge 2.5 milímetros (per ASTM A810)

Standard Models

Model Line Wires Cross Wire Spacing Best Application
HN-N (6-wire) 6 deeply crimped 50.8 milímetros Pipeline OD 6–12 inches
HN-T (8-wire) 8 deeply crimped 50.8 milímetros Pipeline OD 12–24 inches
HN-L (Long Spacing) 8 deeply crimped 92.4 milímetros Pipeline OD 24–36 inches (onshore sections)
HN-W (10-wire) 10 deeply crimped 50.8 milímetros Extra-large diameter pipelines over 36 pulgadas

Applications

CWC Mesh is the industry standard for reinforcing concrete-coated pipelines in demanding environments:

  • Subsea Oil & Gas Pipelines – Provides ballast and structural reinforcement for deepwater pipeline systems

  • River Bottom Pipelines – Ensures stable pipeline placement across river and stream beds, preventing displacement from currents

  • Everglades & Wetland Pipelines – Protects pipelines from external factors including erosion, corrosion, and environmental damage

  • Telecommunications & Power Cables – Anchors subsea cables securely to the seabed, preventing damage from marine activities

  • Pipeline Repair & Rehabilitation – Strengthens aging or damaged pipelines with a cost-effective, durable solution


Why Concrete Weight Coating Mesh?

Subsea pipelines face constant challenges: buoyancy forces, strong underwater currents, seabed movements, and corrosive saltwater environments. Without adequate reinforcement, pipelines can shift, buckle, or suffer structural damage – resulting in costly repairs and environmental risks.

CWC Mesh solves these challenges through:

  1. Added Weight & Stability – The mesh allows concrete coating to bond securely to the pipe surface, increasing overall weight to counteract buoyancy and anchor pipelines to the seabed

  2. Crack Prevention – The wave structure distributes concrete stress evenly, preventing the formation and propagation of cracks under dynamic marine conditions

  3. Extended Service Life – Galvanized protection ensures decades of reliable performance with minimal maintenance

  4. Environmental Protection – Durable construction reduces the risk of leaks and spills, supporting sustainable offshore development


Quality Assurance

Our CWC Mesh products undergo rigorous quality control, incluido:

  • Tensile strength testing

  • Galvanized coating thickness verification (up to 300 g/m²)

  • Weld joint integrity inspection

  • Dimensional accuracy verification

Compliant with international standards including ASTM, ISO 9001, y DNV-ST-F101 for subsea pipeline applications

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