Buyers evaluating stainless steel expanded metal mesh often have questions about mesh types, sheet dimensions, material grades, coatings, and custom ordering. The answers below are drawn from AnPing Zhongtai Expanded Metal Mesh Co., Ltd's documented product range and are grouped by topic for easy reference.

What is stainless steel expanded metal mesh, and where is it used?

Expanded metal mesh is produced by simultaneously slitting and stretching a solid metal plate so that the material forms a network of interconnected strands and diamond-shaped (or other shaped) openings. Because no material is removed in the process, the sheet retains high structural integrity.

The steel expanded metal mesh produced by AnPing Zhongtai is for use across a wide range of industries and applications, including:

• Filtration — filter baskets, air filtration units, pharmaceutical and paper-industry filters
• Construction — batch cement backing, reinforcement for roads and bridges, highway fencing, sports-venue fencing, road green-belt protective netting
• Machine protection and industrial platforms — mechanical equipment guards, tank truck foot meshes, walkways on boilers, oil-mine platforms, ships, and escalators
• Decorative and architectural uses — speaker mesh covers, arts-and-crafts manufacturing, high-grade speaker mesh covers
• Agriculture and aquaculture — fencing, cages, and enclosures
• Consumer and light-industrial products — child seats, decorative baskets, handicrafts, barbecue grills, packaging protection

What are the two main types of expanded metal mesh?

All expanded metal falls into one of two structural types:

Raised mesh The strands remain at an angle to the plane of the sheet, exactly as they come off the expanding line. This geometry delivers:

• A superior strength-to-weight ratio
• Enhanced sheet rigidity
• Good anti-slip properties
• Increased overall thickness compared with the original raw-material sheet

Raised mesh dimensions are measured from the centre of one mesh to the centre of the adjacent mesh — the Long-Way (LW) Pitch and Short-Way (SW) Pitch.

Flattened mesh A raised mesh that is passed through heavy-duty pressurised metal rolls to produce a flat surface. Key characteristics:

• Overall thickness is reduced to approximately that of the original raw material or just below
• Provides greater surface area, which is advantageous where welding into a frame or requiring a flat contact surface
• Aperture dimensions (LW and SW) are measured from the internal opening of the diamond

Walkway mesh follows the same dimensional conventions as raised mesh.

What standard sheet sizes are available?

Expanded metal mesh is available in a wide variety of sheet sizes. The two documented standard sizes are:

LWD = Long-Way Dimension; SWD = Short-Way Dimension.

Stock sheets are manufactured to a nominal plus tolerance and may be delivered slightly oversized. If exact dimensions are required, this should be discussed at the time of order.

Can I order custom sizes or cut-to-size panels?

Yes. AnPing Zhongtai Expanded Metal Mesh Co., Ltd offers a custom manufacturing service covering bespoke mesh specifications and non-standard sheet sizes. Options include:

• Cut-to-size panels — the majority of meshes are cut in-house on guillotines, delivering dimensional accuracy, close tolerances, and guaranteed sheet squareness
• Large-format sheets — available when the application requires wider or longer panels than the standard stock items
• Bespoke mesh specifications — strand thickness, aperture size, or hole shape can be varied to suit performance requirements

Note: 6 mm thick walkway mesh and certain designer meshes cannot be cut on a conventional metal guillotine and require water-jet cutting as a sub-contracted service. Machine-run expanded metal is not guaranteed to be perfectly square; sheared/cut-to-size panels are the appropriate choice when squareness is critical.

Buyers who require exact sizes are encouraged to confirm requirements at the point of ordering.

What material grades and hole shapes are in the product range?

The AnPing Zhongtai product catalogue documents expanded metal mesh made from several plate materials, including:

• Stainless steel plate (including SS304 grade)
• Low carbon steel plate
• Steel plate (general, including corten-type)
• Aluminum plate

Documented hole shapes across the range include diamond, square, and hexagonal openings.

The galvanized variant is a stainless steel plate material product. The non-galvanized variant is also produced from stainless steel plate material. Buyers should specify the required grade, coating, and hole shape when enquiring.

What is the difference between the galvanized and non-galvanized versions of the stainless steel expanded metal mesh?

Both variants share the same base manufacturing process (slit-and-stretch of a metal plate) and the same two structural types (raised and flattened). The distinction is the surface finish:

• Galvanized — the stainless steel plate material product with a galvanized coating, suited to applications where additional surface protection is specified
• Non-galvanized — the stainless steel plate material product without an additional zinc coating, documented for structural applications in corrosion-prone environments where the base stainless material itself provides the required resistance

For application-specific guidance on which finish is appropriate, buyers are advised to discuss their end-use environment and any applicable project standards with the supplier before ordering.

What applications is the stainless steel expanded metal mesh specifically documented for?

Across the product range, stainless steel expanded metal mesh is for the following application categories:

• Construction wire mesh and reinforcement
• Protecting mesh (mechanical equipment guards, machine protection)
• Decorative mesh (architectural cladding, speaker grilles, arts and crafts)
• Filter and sieving applications (pharmaceutical, paper industry, basket filters, air filtration)
• Barbecue wire mesh
• Cages
• Industrial platforms and walkways (heavy machinery, oil mines, boilers, ships, escalators)

How should I specify my order to get the right expanded metal mesh material and dimensions?

To ensure the correct product is supplied, buyers should confirm the following with AnPing Zhongtai Expanded Metal Mesh Co., Ltd at the time of inquiry:

1. Material / grade — e.g. stainless steel (SS304), low carbon steel, aluminum
2. Surface finish — galvanized or non-galvanized
3. Mesh type — raised or flattened
4. Hole shape — diamond, square, or hexagonal
5. Strand / material thickness
6. Sheet dimensions — standard (2440 × 1220 mm or 1250 × 2500 mm) or custom LWD × SWD
7. Cut-to-size requirement — if squareness or close tolerances are critical, request guillotine-cut or water-jet-cut panels

Exact sizes should always be discussed at order stage because stock sheets carry a plus tolerance and may be delivered slightly oversized.