Galvanized Steel Wire Mesh for Gas Oil Pipelines

Агляд прадукту

Pipeline Reinforced Mesh, also known as Concrete Weight Coating (CWC) Mesh, 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.

Асноўныя характарыстыкі

Асаблівасць	Benefit
High Tensile Strength	Manufactured from high-strength low-carbon steel wire to withstand construction stresses and pipeline operating pressures
Ўстойлівасць да карозіі	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
Лёгкая ўстаноўка	Pre-welded mesh panels can be rapidly wrapped around pipes during the concrete coating process
Эканамічна эфектыўны	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

Матэрыял & Будаўніцтва

Parameter	Specification
Матэрыял	Low-carbon mild steel wire with galvanized coating
Galvanizing	Гарачае ацынкаванне (meeting ASTM A123) or electro-galvanized
Дыяметр дроту (Line)	2.0 mm – 3.5 мм (customizable up to 4.0 mm for extra-large diameters)
Дыяметр дроту (Cross)	2.0 mm – 4.5 мм
Line Wire Configuration	Deeply crimped (wave structure), 6, 8, або 10 wires per mesh
Cross Wire Spacing	Standard 50.8 мм (2 цалі) або 92.4 мм (long spacing option)
Standard Mesh Width	190.5 мм (7.5 цалі) або 241.3 мм
Roll Length	140 м, 210 м, 280 м (custom lengths available)
Exposed Wire Edge	≤ 2.5 мм (per ASTM A810)

Standard Models

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

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:

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
Crack Prevention – The wave structure distributes concrete stress evenly, preventing the formation and propagation of cracks under dynamic marine conditions
Extended Service Life – Galvanized protection ensures decades of reliable performance with minimal maintenance
Environmental Protection – Durable construction reduces the risk of leaks and spills, supporting sustainable offshore development