China Expanded Metal Mesh Manufacturers Suppliers Factory - Expanded Metal Mesh in Stock

Expanded Metal Mesh for Industrial Guarding, Filtration, and Architectural Facades

Expanded metal mesh is produced by simultaneously slitting and stretching solid metal sheets into rigid, uniform open-diamond patterns. Because the process removes no material, the resulting mesh retains higher structural integrity and strength-to-weight ratio than welded wire or perforated metal plates. Procured primarily by industrial equipment builders, architectural fabricators, and filtration system manufacturers, our expanded metal is supplied in standard raised and secondary flattened profiles across carbon steel, stainless steel, and aluminum alloys.

Carbon Steel Expanded Metal Mesh
High Strength-to-Weight Ratio: Excellent load-bearing capacity without the weight of solid sheet metal.. Slip Resistance: The raised, twisted strands create a natural non-slip surface.. Ventilation &

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Galvanized Expanded Metal Mesh
Excellent Corrosion Resistance: The zinc layer protects against rust and oxidation, ensuring a longer lifespan.. Rigid and Strong: The expanded structure provides high strength without the weight of

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Stainless Steel Expanded Metal Mesh
High Strength: No cross-section loss during expansion; maintains structural integrity.. Lightweight: Less weight than solid sheet metal while maintaining strength.. Anti-Skid: Serrated surfaces

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Aluminium Expanded Metal Mesh / Facade Mesh
Lightweight: Aluminum is approximately one-third the weight of steel, making it easy to handle, transport, and install, reducing structural load requirements.. Exceptional Corrosion Resistance:

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Powder Coated Expanded Metal Mesh
Exceptional Durability: The cured powder coating is harder and more resistant to chipping, scratching, fading, and wear than liquid paints.. Superior Corrosion & Chemical Resistance: The coating acts

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Gothic Expanded Metal Mesh
Structural Integrity: The expanded form creates a strong, one-piece construction that resists warping and distortion.. Lightweight: High strength relative to its weight reduces structural load..

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Expanded Metal Lath Mesh
Strong Bonding: Diamond-shaped mesh provides excellent key for plaster and stucco.. Lightweight & High Strength: Made from expanded metal, no material loss during stamping.. Corrosion Resistant:

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Expanded Metal Mesh Types

Standard Expanded Metal (Raised)

Formed after slitting and stretching, leaving strands set at a uniform angle to the plane of the sheet. Provides maximum rigidity, slip resistance, and directional strength for walkways and safety guards.

Flattened Expanded Metal

Standard expanded metal passed through a cold-rolling mill to reduce the mesh to a flat surface, lowering overall thickness and creating smooth intersections for enclosures and furniture.

Architectural Facade Mesh

Custom heavier-gauge diamond, hexagonal, or linear strand patterns engineered for exterior building cladding, sunshades, and ventilation louvers.

Micro Expanded Metal

Ultra-thin foil mesh featuring microscopic apertures, manufactured for battery current collectors, catalyst supports, and precision electronic shielding.

Materials and Manufacturing Options

Material Grades

Carbon Steel (ASTM A36, Q235B), Stainless Steel (AISI 304, 316L), Aluminum Alloys (1060, 3003-H14, 5052-H32), Copper, and Titanium.

Slitting and Stretching Tolerances

Feed sheet thickness variance controlled within +/- 0.03 mm; SWD and LWD dimensions held to +/- 0.5 mm over standard 2-meter panel lengths.

Surface Finishes

Mill finish, hot-dip galvanized (ASTM A153 / ISO 1461), polyester powder coating, PVDF architectural paint, and electrochemical passivation for stainless steel.

Expanded Metal Specifications

Item Code	Material Grade	Thickness (mm)	Strand Width (mm)	SWD x LWD (mm)	Sheet Size W x L (mm)	Weight (kg/m²)
EM-CS-1020	Q235B / ASTM A36	1.0	1.0	10 x 20	1220 x 2440	2.10
EM-CS-2040	Q235B / ASTM A36	2.0	2.0	20 x 40	1250 x 2500	5.80
EM-SS-3060	AISI 304	1.5	1.5	25 x 50	1000 x 2000	3.40
EM-AL-1225	Aluminum 3043	2.0	1.8	12 x 25	1200 x 2400	2.65
EM-CS-3080	Q235B / ASTM A36	3.0	3.0	30 x 80	1500 x 3000	7.90

Note: Custom strand widths, custom feed thicknesses, and specialized coil widths are available upon engineering review.

Applications

Industrial Machinery Guards

Perimeter safety fencing, belt guards, and motor covers preventing operator contact with rotating components.

Walkways and Stair Treads

High-traction flooring surfaces for industrial mezzanine decks, offshore platforms, and catwalks.

Filtration and Separation

Support cores for liquid filter elements, intake air grilles, and heavy-duty dust collection screens.

Architectural Cladding

Exterior sun shading fins, building facade screens, and interior ceiling panels requiring open-area ventilation.

Energy Storage

Current collection grids for lead-acid batteries and lithium-ion cell substrate components.

Manufacturing and Quality Control

Production Equipment: High-tonnage mechanical expanding presses equipped with precision-ground carbide dies ranging from 60-ton to 400-ton capacity.

Feed Stock Control: Raw metal coils and sheets verified upon arrival for gauge thickness uniformity, tensile strength, and elongation compliance via mill test certificates (MTC).

Dimensional Inspection: Post-expansion samples measured using digital optical comparators and vernier gauges to verify strand width, bond integrity, and diagonal pitch accuracy.

Flatness Verification: Leveling roller passes integrated into the production line to ensure sheet camber and bow remain within industrial flatness standards prior to packaging.

Custom Expanded Metal Solutions

Custom Aperture Geometry

Engineering of non-standard diamond, square, round, or decorative slot patterns tailored to specific open-area percentage requirements.

Blanking and Shear Cutting

In-house CNC shearing and laser cutting to deliver panels cut precisely to drawing dimensions, eliminating secondary cutting scrap at the job site.

Edge Conditioning

Deburring and flattened border shearing for panels requiring exposed edges in architectural or consumer-facing installations.

How to Choose the Right Expanded Metal Mesh

Determine Structural Load Requirements

Select thicker strand profiles (3 mm and above) for walkways and heavy security barriers; use thinner gauges (0.5 mm to 1.5 mm) for filtration and enclosures.

Evaluate Open Area vs. Strength

Smaller diamond patterns (SWD under 15 mm) offer higher screening density; larger patterns maximize light transmission and airflow.

Specify Material by Environment

Use hot-dip galvanized carbon steel for general industrial use, AISI 304/316L for chemical or marine exposure, and aluminum for weight-sensitive architectural envelopes.

Choose Raised vs. Flattened

Select raised mesh for maximum slip resistance and structural rigidity; choose flattened mesh when secondary fabrication, bending, or smooth surface contact is required.

Packaging and Delivery

Packaging Method: Expanded metal sheets secured onto heavy-duty fumigation-free wooden pallets, separated by corrugated interleaving paper to prevent surface scratching during transit.
Edge Protection: Steel corner guards and strapping protectors applied to all bundle perimeters; entire skids wrapped in heavy waterproof stretch film.
Shipping Configurations: Standard container loading for 20-foot and 40-foot ocean containers, or custom crate packing for air freight and LTL domestic transport.

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FAQ

Q: What is the difference between raised and flattened expanded metal?

A: Raised expanded metal retains the angled strands produced directly during the slitting and stretching process, offering high rigidity and slip resistance. Flattened expanded metal passes through a cold-rolling mill after expansion to press the strands flat, resulting in a smooth surface profile and reduced overall thickness.

Q: How is the open area percentage calculated?

A: Open area is determined by the geometry of the diamond aperture (SWD and LWD) relative to the strand width. Exact open area percentages are provided on individual product technical data sheets based on your chosen specification.

Q: Can expanded metal mesh be supplied in cut-to-size dimensions?

A: Yes. We provide precision shearing and laser cutting services to supply finished panels according to your CAD drawings, reducing fabrication waste at your facility.

Q: What is the maximum sheet width available?

A: Standard production widths range up to 2000 mm depending on press capacity and material gauge, with continuous coil lengths available for high-volume automated processing.

Q: What corrosion protection options are available for carbon steel?

A: arbon steel mesh can be supplied in mill finish, hot-dip galvanized according to ISO 1461 standards, or electro-galvanized with subsequent polyester powder coating.

Q: How does expanded metal compare to perforated metal?

A: Expanded metal is stretched rather than punched, meaning no metal scrap is generated during production. This results in a higher strength-to-weight ratio and continuous load-bearing joints across the entire sheet.

We're well-known as one of the leading expanded metal mesh manufacturers and suppliers in China. With a professional production team, we are able to meet the needs of the majority of our customers. Please rest assured to buy high quality expanded metal mesh in stock here from our factory.

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