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When standard copper just won't hold up — whether you're fabricating spring contacts, precision shims, or EMI shielding panels — you need a material that combines conductivity with real mechanical strength. These beryllium copper (BeCu) foil sheets are designed for makers, engineers, and small-workshop fabricators who require tight dimensional tolerances and consistent material properties in every piece.
Each sheet measures 200 x 200 mm (approximately 7.87 x 7.87 inches) and is available in thicknesses ranging from 0.08 mm to 1.2 mm (0.003" to 0.047"). The alloy is a copper-beryllium composition (typically C17200 / CuBe2 equivalent), known for its combination of electrical conductivity, spring-like elasticity, and corrosion resistance. Edges are cut to size and suitable for further machining, stamping, or forming.
Typical use cases include fabricating electrical spring contacts and connector leaves, cutting precision shim stock for mechanical assemblies, and producing EMI/RFI shielding inserts for enclosures and PCB housings — all applications where a beryllium copper foil strip or plate delivers performance that standard brass or phosphor bronze cannot match.
Available from 0.08 mm to 1.2 mm in 12 selectable steps, covering ultra-thin foil shims through to structural plate stock — choose the exact gauge your project demands.
BeCu alloy maintains strong electrical conductivity alongside its mechanical properties, making it the go-to choice for spring contacts, relay blades, and connector components.
Beryllium copper resists oxidation and corrosion in typical workshop and electronic environments, helping your fabricated parts maintain performance over time.
Each sheet is cut to a uniform 200 x 200 mm square (≈7.87" × 7.87"), giving you a predictable blank for layout, nesting, and cutting without material waste from irregular stock.
Thinner gauges (0.08–0.3 mm) can be hand-cut with shears or scored; thicker gauges (0.4–1.2 mm) are suited to CNC routing, waterjet, or stamping for repeatable part production.
Each listing is for 1 piece per order at your selected thickness. Order multiple quantities at checkout to stock your workshop with the gauges you use most.
| Material | Beryllium Copper Alloy (BeCu, C17200 / CuBe2 equivalent) |
|---|---|
| Sheet Size | 200 x 200 mm (approx. 7.87" x 7.87") |
| Thickness | 0.08 mm / 0.1 mm / 0.15 mm / 0.2 mm / 0.25 mm / 0.3 mm / 0.4 mm / 0.5 mm / 0.6 mm / 0.8 mm / 1.0 mm / 1.2 mm (see variant options) |
| Finish | Mill finish (as-cut) |
| Conductivity | See variant options |
| Hardness | See variant options |
| Quantity per Order | 1 piece |
| Compatible Processes | Laser cutting, waterjet, stamping, hand shearing, CNC routing |
| Typical Applications | Spring contacts, EMI shielding, precision shims, connector leaves, relay blades |
For ultra-thin shims and foil gaskets, select 0.08–0.15 mm. For spring contacts and relay blades that need flex and return force, 0.2–0.4 mm is a common range. For structural panels, EMI shields, or parts requiring rigidity, 0.5–1.2 mm is appropriate. If you're unsure, contact us with your load or deflection requirements and we can advise.
Solid BeCu sheet is safe to handle with normal precautions. The primary safety concern arises during grinding, sanding, or machining operations that generate fine dust or particles — beryllium dust is a respiratory hazard. Always use appropriate respiratory protection (P100 respirator), eye protection, and local exhaust ventilation when cutting or grinding. Laser cutting and waterjet are preferred methods as they minimize airborne particles.
BeCu offers a significantly higher yield strength and fatigue resistance than phosphor bronze or brass at comparable thicknesses, meaning spring contacts made from BeCu maintain their contact force over more cycles. It also has better electrical conductivity than phosphor bronze. The trade-off is cost — BeCu is more expensive, but for high-cycle or precision applications it is the standard choice.
Yes. Beryllium copper is widely used in EMI shielding gaskets and enclosure inserts due to its combination of electrical conductivity and spring-back properties, which ensure consistent contact pressure against mating surfaces. Thinner gauges (0.08–0.3 mm) are typically used for finger-strip gaskets, while thicker gauges suit rigid shield panels.
These sheets are a C17200 / CuBe2 equivalent beryllium copper alloy — the most common engineering grade, containing approximately 1.8–2.0% beryllium. This grade is used in the majority of spring contact, shim, and shielding applications. If you require a specific certified alloy grade or material certification, please contact us before ordering.
The listed variants cover 200 x 200 mm sheets in 12 standard thicknesses from 0.08 mm to 1.2 mm. If you need a different sheet size, a thickness outside this range, or a larger quantity with custom cutting, please use the contact form to describe your requirements and we will advise on availability.
Store sheets flat in a dry environment away from moisture and corrosive chemicals. For thin foil gauges (under 0.2 mm), avoid bending or rolling during storage to prevent permanent deformation. Interleaving sheets with clean paper or plastic film helps prevent surface scratching when stacking multiple pieces.
