Expanded Metal Mesh

Non-slip expanded metal walkway on construction site

Expanded Metal Mesh for Industrial & Architectural Applications

Ambani Metals, a leading Expanded Metal Mesh Manufacturer and Supplier, offers high-performance mesh solutions that combine the structural strength of sheet metal with the ventilation and drainage capabilities of wire mesh. Expanded metal mesh is often chosen as a superior alternative due to its enhanced tensile strength and minimal need for welding, making it an ideal material for robust wire baskets and industrial applications where durability and airflow are essential.

As a reliable Expanded Metal Mesh Supplier, Ambani Metals offers customized solutions that simplify fabrication by using expanded sheets instead of welded wires. This process reduces production time while increasing structural integrity, making expanded metal an ideal choice for manufacturing custom baskets and components across a wide range of industries.

Our stainless steel expanded metal mesh, particularly in grade 316, is valued for its excellent resistance to corrosion, heat, and chemicals. It finds widespread use in the sectors Ambani Metals serves, including petrochemical, food processing, pharmaceuticals, and water treatment.

Expanded metal mesh can be produced from various materials, including mild steel, stainless steel, aluminum, nickel, and other alloys. Available in thicknesses from 0.5 mm to 8 mm, it is widely applied for fencing on roads, railways, and civil buildings, as well as in protective enclosures for machines, electrical equipment, aquaculture, and more.

How is Expanded Metal Mesh Made?

The manufacturing process varies depending on whether standard or flattened expanded metal mesh is required. Standard expanded metal is made by simultaneously slitting and stretching the metal sheet in an expander, forming uniform mesh openings. This type has a slightly raised, diamond-shaped pattern that prevents pooling of liquids, making it ideal for wash baskets and draining applications.

Ambani Metals, as a specialist manufacturer and supplier, also offers flattened expanded metal, which is cold-rolled after expansion. This process compresses the mesh into a smoother, thinner, and wider sheet, making it suitable for lightweight handling applications or when a flatter surface is needed.

Choosing between standard and flattened expanded metal mesh depends on your specific use-case. Standard mesh provides better drainage, while flattened mesh offers a sleek, lower-profile finish and is often used where aesthetics or lightness is important.

Properties of Expanded Metal Mesh :

  • High Strength-to-Weight Ratio : Expanded metal mesh retains the strength of the original metal sheet while reducing weight, making it ideal for load-bearing and structural applications.
  • Excellent Ventilation & Drainage : The open mesh design allows for superior airflow, light passage, and liquid drainage—essential for filtration, screening, and enclosure applications.
  • Non-Slip Surface : Standard (raised) expanded metal provides excellent grip, making it suitable for platforms, walkways, and stair treads.
  • Durability & Rigidity : The interconnected strand and bond structure adds rigidity and ensures long-term durability even under mechanical stress.
  • No Loose Threads or Welds : Unlike welded meshes, expanded metal has no loose joints, which enhances structural integrity and reduces failure points.

Expanded Metal Mesh Terms:

  • Strand : The metal strip that forms the sides of the mesh openings. It results from slitting and stretching the metal sheet.
  • Bond : The intersection point where two strands meet. Bonds provide structural strength to the mesh.
  • SWD (Short Way of Diamond) : The distance from the center of one bond to the center of the next bond across the short axis of the diamond shape.
  • LWD (Long Way of Diamond) : The distance across the long axis of the diamond shape from center to center of bonds.
  • Thickness (Gauge) : The thickness of the original metal sheet before expansion. This affects the mesh's strength and durability.
  • Opening Size : The size of the mesh aperture, usually measured by the SWD and LWD. Determines ventilation, drainage, and material passage capability.
  • Standard Expanded Metal : Mesh in its original, raised form after expansion, offering high strength and grip.
  • Flattened Expanded Metal : Mesh that has been cold-rolled after expansion, making it thinner, smoother, and more flexible for certain applications.

Types of Expanded Metal Mesh

  • Standard Expanded Metal (Raised) : Standard Expanded Metal (Raised) features a raised, angular pattern that offers excellent grip and strength, making it ideal for walkways, fencing, and industrial platforms.
  • Flattened Expanded Metal : Flattened Expanded Metal is produced by cold-rolling standard expanded metal to create a smooth, flat surface. It's easier to handle and fabricate, making it ideal for enclosures, partitions, and decorative applications.
  • Micro Expanded Metal : Micro Expanded Metal features very small openings and thin strands, making it perfect for use in filters, fine screens, and precision ventilation systems where airflow and filtration are critical.
  • Architectural Expanded Metal : Architectural Expanded Metal combines strength with visual appeal, making it ideal for façades, ceilings, cladding, and interior design. It offers both decorative value and functional benefits like light diffusion and ventilation.
  • Hexagonal & Custom Mesh Patterns : Hexagonal & Custom Mesh Patterns feature unique shapes like hexagons or tailor-made designs, commonly used in high-end architectural projects and specialized engineering applications that require both aesthetics and performance.
  • Rhomboidal Mesh : Rhomboidal Mesh features diamond-shaped (rhomboid) openings formed during the expansion process. This pattern offers excellent strength, rigidity, and slip resistance, making it suitable for fencing, grating, and structural reinforcement in both industrial and architectural applications.
  • Round Expanded Mesh : Round Mesh is characterized by circular openings that provide a smooth and uniform appearance. It is commonly used in decorative panels, ventilation screens, filtration systems, and architectural elements where both aesthetics and functionality are important.
  • Square Expanded Mesh : Square Expanded Mesh features uniform square-shaped openings that offer a clean, balanced look with excellent strength and versatility. It is widely used in fencing, grills, security panels, and architectural applications where symmetry and structural integrity are key requirements.

Applications of Expanded Metal Mesh

  • Construction & Infrastructure : Used in walkways, stair treads, grilles, and as reinforcement in concrete and plaster for added strength and safety.
  • Industrial Uses : Used for machine guards, safety barriers, storage racks, partitions, and ventilation or filtration screens in industrial settings.
  • Architecture & Design : Used in facades, ceilings, partitions, and decorative fencing to combine aesthetics with durability in architectural designs.
  • Security & Fencing : Used for perimeter fencing, window guards, and security grilles in residential, commercial, and high-security areas.
  • Automotive & Transportation : Used in grilles, body parts, floors of vehicles, and for airflow and filtration in automotive and transport applications.
  • Agriculture & Horticulture : Used for crop protection, garden fencing, trellises, greenhouse panels, and animal enclosures in agriculture and horticulture.
  • Filtration & HVAC : Used as support layers in filters, for air and fluid filtration, and in noise control panels in HVAC and filtration systems.
  • Marine & Offshore : Used for non-slip walkways on ships and oil rigs, as well as corrosion-resistant panels and grates in marine and offshore environments.

FAQs

Expanded metal mesh is a sheet of metal that has been cut and stretched to form a regular pattern (often diamond-shaped). It offers strength, ventilation, and flexibility with minimal waste.

It is commonly made from stainless steel, mild steel, aluminum, galvanized steel, copper, and nickel depending on the application.

It is used in construction, architecture, filtration, automotive, agriculture, fencing, security, and industrial safety.

Yes. It is generally stronger due to its continuous structure without welds, making it ideal for heavy-duty applications.

Key measurements include strand width, strand thickness, LWD (Long Way of Diamond), SWD (Short Way of Diamond), and overall sheet size.