{"product_id":"beryllium-copper-sheet-foil-becu-strip-metal-thin-plate","title":"Beryllium Copper Sheet Foil Roll BeCu Strip Metal Thin Plate Thick 0.1mm-1.2mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBeryllium Copper Sheet Foil — Precision BeCu Strip for Demanding Electrical \u0026amp; Mechanical Applications\u003c\/h2\u003e\n\u003cp\u003eEngineers and makers who need a conductor that also springs back know the frustration of standard copper: it deforms under repeated flex and loses contact force over time. Beryllium copper sheet foil solves that problem by combining the electrical conductivity of copper with the elastic memory of a spring alloy — making it the go-to material for contact fingers, EMI shielding gaskets, and precision tooling inserts.\u003c\/p\u003e\n\u003cp\u003eEach sheet is cut from spring-temper BeCu alloy (typically C17200 \/ CuBe2), available in thicknesses from 0.1 mm (≈ 0.004 in) to 1.2 mm (≈ 0.047 in). Sheet sizes range from 200 mm × 200 mm (≈ 7.9 in × 7.9 in) up to 200 mm × 1000 mm (≈ 7.9 in × 39.4 in), with a 200 mm × 500 mm mid-format also available. Select your exact thickness and sheet size from the variant options above.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include connector spring contacts and relay blades in telecommunications equipment, beryllium copper EMI shielding strips in RF enclosures, precision shim stock and feeler-gauge blanks for machine tool setups, and flexible circuit substrates where repeated deflection cycles are required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e BeCu alloy sheet is compatible with standard copper-alloy machining, stamping, and EDM processes. Verify thickness tolerance requirements against your drawing before ordering. Beryllium-containing alloys require standard industrial dust\/fume controls during grinding or machining.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Beryllium Copper Sheet Foils\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eSpring-Temper Elastic Memory\u003c\/strong\u003e\n\u003cp\u003eMaintains contact force after thousands of deflection cycles — unlike annealed copper, the BeCu alloy returns to its original geometry without permanent set.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e \u003cstrong\u003eHigh Electrical Conductivity\u003c\/strong\u003e\n\u003cp\u003eConductivity typically 15–25% IACS (alloy and temper dependent), far exceeding beryllium-free spring alloys like phosphor bronze, making it suitable for signal and power contact applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eCorrosion \u0026amp; Oxidation Resistance\u003c\/strong\u003e\n\u003cp\u003eNatural oxide layer provides good atmospheric corrosion resistance; suitable for humid environments and light chemical exposure without additional plating in many applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003ePrecision Thickness Range 0.1–1.2 mm\u003c\/strong\u003e\n\u003cp\u003eEleven thickness steps from 0.1 mm foil to 1.2 mm plate allow you to match the exact spring rate and current-carrying cross-section your design requires.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e \u003cstrong\u003eMultiple Sheet Formats\u003c\/strong\u003e\n\u003cp\u003eChoose from 200 × 200 mm, 215 × 200 mm, 200 × 500 mm, or 200 × 1000 mm sheets to minimise offcut waste for your specific blank size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔬\u003c\/span\u003e \u003cstrong\u003eMachinable \u0026amp; Stampable\u003c\/strong\u003e\n\u003cp\u003eCompatible with CNC milling, laser cutting, wire EDM, and progressive die stamping — thinner foils (0.1–0.3 mm) are also hand-shearable with standard metal snips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Beryllium Copper Sheet Foil\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAlloy\u003c\/th\u003e\n\u003ctd\u003eBeCu (C17200 \/ CuBe2, spring temper)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e0.1 mm – 1.2 mm (0.004 in – 0.047 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sheet Sizes\u003c\/th\u003e\n\u003ctd\u003e200×200 mm \/ 215×200 mm \/ 200×500 mm \/ 200×1000 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBeryllium Content\u003c\/th\u003e\n\u003ctd\u003eTypically 1.8–2.0 wt%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003eTypically 15–25% IACS (temper dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eMill finish (bright rolled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 Pcs (per variant selected)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Tolerance\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right thickness for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eFor EMI shielding gaskets and finger contacts, 0.1–0.3 mm foil provides the flexibility needed to conform to mating surfaces. For spring contacts requiring higher contact force, 0.3–0.6 mm is typical. Shim stock and structural inserts generally use 0.5–1.2 mm. If you have a specific spring-rate or deflection target, contact us with your load and travel requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs beryllium copper safe to handle and machine?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSolid BeCu sheet is safe to handle with bare hands under normal conditions. The health risk arises only when beryllium-containing dust or fumes are generated — during grinding, sanding, or high-temperature cutting. Always use appropriate respiratory protection and local exhaust ventilation when machining. Laser cutting and wire EDM are preferred low-dust methods for thin foil.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between C17200 and other BeCu alloys?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eC17200 (CuBe2) is the most widely used spring-grade beryllium copper, offering the best combination of strength and conductivity after age hardening. C17500 and C17510 contain less beryllium and more cobalt or nickel, giving higher conductivity at the cost of some strength — they are used where conductivity is the primary driver. The sheet in this listing is C17200 \/ CuBe2 spring temper.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I solder or weld beryllium copper sheet?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBeCu can be soldered using standard tin-lead or lead-free solders with a mildly activated flux — no special process is required for thin foil contacts. Resistance welding (spot welding) is also feasible. Fusion welding (TIG\/MIG) is possible but requires fume extraction rated for beryllium. Brazing with silver alloys is common for structural joints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill this sheet work as an EMI shielding gasket material?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. BeCu foil is a standard material for EMI\/RFI shielding finger strips and compression gaskets in RF enclosures and electronics chassis. Its spring-back ensures consistent contact pressure against mating surfaces over repeated open\/close cycles. For shielding applications, 0.1–0.2 mm thickness is most common; thicker gauges are used where mechanical durability is also required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow does beryllium copper compare to phosphor bronze for spring contacts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBeCu offers roughly 3–4× higher yield strength than phosphor bronze at comparable conductivity levels, meaning a thinner BeCu contact can deliver the same contact force as a thicker phosphor bronze one. BeCu also has better fatigue life under cyclic deflection. The trade-off is cost — BeCu is significantly more expensive, so it is chosen when performance requirements cannot be met by lower-cost spring alloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat sizes are available and can I order custom dimensions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard sizes listed are 200×200 mm, 215×200 mm, 200×500 mm, and 200×1000 mm. These cover most prototyping and small-batch production needs. For custom widths, lengths, or thickness tolerances not shown in the variant options, please contact us to confirm availability and lead time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Thickness and Size above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"0.1mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409353896210,"sku":"GYZXKGLBZSJ013832x1","price":8.06,"currency_code":"USD","in_stock":true},{"title":"0.15mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409353928978,"sku":"GYZXKGLBZSJ013833x1","price":11.53,"currency_code":"USD","in_stock":true},{"title":"0.2mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409353961746,"sku":"GYZXKGLBZSJ013834x1","price":13.45,"currency_code":"USD","in_stock":true},{"title":"0.25mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409353994514,"sku":"GYZXKGLBZSJ013835x1","price":16.43,"currency_code":"USD","in_stock":true},{"title":"0.3mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409354027282,"sku":"GYZXKGLBZSJ013836x1","price":20.71,"currency_code":"USD","in_stock":true},{"title":"0.4mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409354060050,"sku":"GYZXKGLBZSJ013837x1","price":27.44,"currency_code":"USD","in_stock":true},{"title":"0.5mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409354092818,"sku":"GYZXKGLBZSJ013838x1","price":34.26,"currency_code":"USD","in_stock":true},{"title":"0.6mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409354125586,"sku":"GYZXKGLBZSJ013839x1","price":40.58,"currency_code":"USD","in_stock":true},{"title":"0.8mm \/ 200mm x 200mm \/ 1 Pcs","offer_id":52409354158354,"sku":"GYZXKGLBZSJ013840x1","price":53.76,"currency_code":"USD","in_stock":true},{"title":"1mm \/ 215mm x 200mm \/ 1 Pcs","offer_id":52409354191122,"sku":"GYZXKGLBZSJ013841x1","price":70.28,"currency_code":"USD","in_stock":true},{"title":"1.2mm \/ 215mm x 200mm \/ 1 Pcs","offer_id":52409354223890,"sku":"GYZXKGLBZSJ013842x1","price":84.24,"currency_code":"USD","in_stock":true},{"title":"0.1mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354256658,"sku":"GYZXKAMDWJ00001x1","price":40.79,"currency_code":"USD","in_stock":true},{"title":"0.15mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354289426,"sku":"GYZXKAMDWJ00002x1","price":51.31,"currency_code":"USD","in_stock":true},{"title":"0.2mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354322194,"sku":"GYZXKAMDWJ00003x1","price":70.77,"currency_code":"USD","in_stock":true},{"title":"0.25mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354354962,"sku":"GYZXKAMDWJ00004x1","price":80.57,"currency_code":"USD","in_stock":true},{"title":"0.3mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354387730,"sku":"GYZXKAMDWJ00005x1","price":105.25,"currency_code":"USD","in_stock":true},{"title":"0.4mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354420498,"sku":"GYZXKAMDWJ00006x1","price":127.89,"currency_code":"USD","in_stock":true},{"title":"0.5mm \/ 200mm x 1000mm \/ 1 Pcs","offer_id":52409354453266,"sku":"GYZXKAMDWJ00007x1","price":163.72,"currency_code":"USD","in_stock":true},{"title":"0.5mm \/ 200mm x 500mm \/ 1 Pcs","offer_id":52409354486034,"sku":"GYZXKAMDWJ00009x1","price":80.57,"currency_code":"USD","in_stock":true},{"title":"0.6mm \/ 200mm x 500mm \/ 1 Pcs","offer_id":52409354518802,"sku":"GYZXKAMDWJ00010x1","price":96.4,"currency_code":"USD","in_stock":true},{"title":"0.8mm \/ 200mm x 500mm \/ 1 Pcs","offer_id":52409354551570,"sku":"GYZXKAMDWJ00011x1","price":128.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture4of11_f1ca40bd-afd2-4d96-86fd-a37aad21740f.jpg?v=1782449008","url":"https:\/\/homediyer.com\/products\/beryllium-copper-sheet-foil-becu-strip-metal-thin-plate","provider":"HomeDIYer","version":"1.0","type":"link"}