EXPANDED METAL

Copper Expanded Metal

A continuous copper network with an open, directional texture. Develop the mesh around the visible finish or electrical function required, rather than treating every copper opening as interchangeable.

Continuous copper strandsDirectional open textureFunction-led detailing

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MaterialCopper sheet; grade and condition to order.

GeometryOpening size, strand width and orientation.

ProfileRaised or flattened to the agreed drawing.

SurfaceNatural copper appearance changes with exposure.

PRODUCT OVERVIEW

Copper Expanded Metal for Conductive and Architectural Components

Copper expanded metal is produced by slitting and stretching solid copper sheet into a continuous network of strands and openings. Starting sheet thickness, strand width, SWD, LWD, mesh direction and the raised or flattened profile determine the final appearance and handling characteristics. These parameters should be coordinated with finished panel dimensions, edge support and the surrounding assembly.

The natural copper surface gives architectural screens and interior components a distinctive warm appearance that can change gradually with exposure. The connected strand structure can also support selected conductive applications, but electrical continuity, shielding or electrochemical performance must be assessed using the actual mesh, joints and contact design. Typical inquiries include feature screens, ventilation panels, decorative inserts and specified conductive components.

MATERIAL SELECTION

Why Specify Copper Expanded Metal?

Key Advantages

Connected copper strands provide a continuous metal path, while the opening direction gives designers a visible texture to work with.

Considerations

Fine strands can distort during handling. Agree edge support and surface protection; electrical performance must be checked for the actual mesh, joints and contact arrangement.

Best-fit Uses

Interior screens, feature panels and specified conductive components. Shielding or electrochemical requests require a separate functional specification, not a generic application claim.

TECHNICAL INFORMATION

Specifications & Custom Range

Final dimensions and compatible combinations are confirmed against the approved drawing or mesh specification before production.

Copper Specification

Confirm grade, sheet condition and any conductivity or composition requirement in the order.

Strands & Thickness

Give starting thickness and strand width; include handling or forming constraints.

Mesh Geometry

State SWD, LWD and pitch-versus-opening definitions.

Profile & Size

Provide raised or flattened profile, finished dimensions and orientation.

Surface Requirement

Separate appearance finish, cleanliness and contact-surface requirements.

Order Planning

Common specifications are regularly stocked, while non-standard sizes, materials and finishes can be produced to order. Final quantities and delivery schedules are confirmed with the quotation.

FROM SHEET TO FINISHED EXPANDED METAL

From Copper Sheet to Continuous Open Network

Define the Function

Separate appearance, electrical and mechanical requirements.

Set the Strands

Agree mesh pitch, strand width and sheet condition.

Form the Network

Review expansion and any flattening against the drawing.

Preserve the Result

Specify flat support, finish protection and packing expectations.

FREQUENTLY ASKED QUESTIONS

Copper Expanded Metal FAQ

Material, specification and commercial details are confirmed for the actual project.

Is expanded copper the same as woven copper mesh?

No. Expanded mesh is formed from sheet with integral strands; woven mesh uses intersecting wires. Their geometry and edge behavior differ.

Can it be used in a shielding enclosure?

Submit the frequency range, attenuation target and contact design. The installed system must be assessed, not only the copper material.

Will flattening preserve the original mesh dimensions?

Do not assume it will. Confirm the finished geometry and tolerances for the selected process.

Can I keep the bright copper appearance?

Discuss the finish and maintenance requirement; natural copper should not be described as permanently color-stable.

How should delicate mesh be supplied?

Specify whether it needs flat support, separators or a frame, and agree protection appropriate to the strand geometry.

LET’S WORK TOGETHER

Specify Your Copper Network

Send the mesh drawing and tell us whether appearance or functional performance comes first. Not sure of the specification? Send a photo, sketch or application description, and we can help identify the details needed for a quotation. Send photos or drawings by email to trade@hightopmetalmesh.com.

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