{"product_id":"c17200-beryllium-copper-metal-sheet-becu-thin-foil-plate-strip-thick-0-1mm-12mm","title":"C17200 Beryllium Copper Metal Sheet BeCu Thin Foil Plate Strip Thick 0.1mm-12mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eC17200 Beryllium Copper Sheet — Precision Flat Stock for Electrical \u0026amp; Mechanical Applications\u003c\/h2\u003e\n\u003cp\u003eEngineers, makers, and precision fabricators who need a copper alloy that holds its shape under repeated stress know the frustration of standard copper bending out of tolerance or corroding at contact points. C17200 beryllium copper sheet solves that problem — delivering the electrical conductivity of copper with spring-grade mechanical strength, making it the go-to flat stock for demanding DIY and industrial builds.\u003c\/p\u003e\n\u003cp\u003eEach piece is cut from C17200 (UNS C17200) beryllium copper alloy, also known as BeCu or Alloy 25. Thickness ranges from 0.1 mm (≈0.004 in) up to 12 mm (≈0.472 in), with sheet widths of 200–225 mm (≈7.87–8.86 in) and lengths of 200 mm, 500 mm, or 1000 mm depending on the selected variant. The surface is mill-finished with a characteristic golden-bronze tone.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include electrical contact springs and relay blades where low resistance and fatigue life matter, precision shim stock and feeler gauge blanks for tight-tolerance assemblies, and RF\/EMI shielding foil for electronics enclosures — all long-tail applications where beryllium copper thin foil plate outperforms standard brass or phosphor bronze.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for CNC machining, EDM wire cutting, stamping, and manual fabrication. Compatible with standard copper brazing and silver soldering processes. Not recommended for direct contact with ammonia-based environments.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These C17200 Beryllium Copper Sheets\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n\u003cstrong\u003eSpring-Grade Strength\u003c\/strong\u003e\n\u003cp\u003eC17200 alloy achieves tensile strength of typically 1,100–1,400 MPa in the aged condition — far exceeding standard copper, making it ideal for contact springs and snap-fit components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\n\u003cstrong\u003eExcellent Electrical Conductivity\u003c\/strong\u003e\n\u003cp\u003eMaintains approximately 22–28% IACS conductivity, balancing current-carrying capacity with mechanical performance for relay contacts and bus bar shims.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n\u003cstrong\u003eCorrosion \u0026amp; Oxidation Resistance\u003c\/strong\u003e\n\u003cp\u003eNaturally resistant to atmospheric corrosion, seawater, and many industrial chemicals — extending service life in harsh environments without surface coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003eWide Thickness Range\u003c\/strong\u003e\n\u003cp\u003eAvailable from ultra-thin 0.1 mm foil up to 12 mm plate, covering shim stock, spring strip, and structural flat bar needs in a single product listing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n\u003cstrong\u003eMachinable \u0026amp; Formable\u003c\/strong\u003e\n\u003cp\u003eCan be sheared, punched, bent, and CNC-milled in the annealed state before age-hardening — allowing complex part geometries without cracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\n\u003cstrong\u003eNon-Sparking \u0026amp; Non-Magnetic\u003c\/strong\u003e\n\u003cp\u003eInherently non-sparking and non-magnetic properties make BeCu sheet suitable for use in explosive atmospheres and MRI-adjacent environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Beryllium Copper Flat Sheet\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAlloy Designation\u003c\/th\u003e\n\u003ctd\u003eC17200 (UNS C17200 \/ Alloy 25)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBeryllium Copper (BeCu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBeryllium Content\u003c\/th\u003e\n\u003ctd\u003eTypically 1.8–2.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e0.1 mm – 12 mm (0.004 in – 0.472 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e200 mm – 225 mm (7.87 in – 8.86 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength Options\u003c\/th\u003e\n\u003ctd\u003e200 mm \/ 500 mm \/ 1000 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eMill finish (golden-bronze tone)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemper \/ Condition\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTensile Strength (aged)\u003c\/th\u003e\n\u003ctd\u003eTypically 1,100–1,400 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003eApprox. 22–28% IACS\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\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\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\u003cp\u003eFor electrical contact springs and relay blades, thicknesses of 0.1–0.5 mm are most common. For shim stock and precision spacers, 0.1–1.0 mm works well. For structural flat bar or tooling inserts, select 2 mm and above. If you are unsure, select your size above to compare dimensions, or contact us to confirm suitability.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs C17200 beryllium copper stronger than standard copper or brass?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. In the age-hardened condition, C17200 BeCu achieves tensile strengths of 1,100–1,400 MPa — roughly 3–5× stronger than standard copper and significantly stronger than most brass alloys. This makes it the preferred choice for spring contacts and fatigue-critical components.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes beryllium copper corrode or rust?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eBeryllium copper does not rust (it contains no iron). It forms a thin, stable oxide layer that protects the surface from further atmospheric corrosion. It also resists seawater and many industrial chemicals, making it suitable for marine and outdoor electrical enclosure applications.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I machine or cut this sheet with standard tools?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes, in the annealed (soft) condition, C17200 BeCu can be sheared, punched, CNC-milled, and bent using standard metalworking equipment. For best results, machine before age-hardening. Note: beryllium dust and fumes are hazardous — always follow appropriate safety precautions (wet cutting, respiratory protection) when machining.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this sheet compatible with soldering or brazing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. C17200 beryllium copper is compatible with silver soldering and copper brazing processes. Standard tin-lead or lead-free solder can also be used for electrical connections. Avoid flux residues that contain ammonia compounds, as these can cause stress corrosion cracking.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 200 mm, 500 mm, and 1000 mm length options?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe length dimension refers to the longest side of the flat sheet. The 200 mm × 200 mm size is ideal for small prototype parts and contact blanks. The 500 mm length suits medium-run shim stock and strip cutting. The 1000 mm length is best for continuous strip applications or when you need to cut multiple parts from a single piece to reduce waste.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs beryllium copper non-magnetic and non-sparking?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. C17200 BeCu is inherently non-magnetic and non-sparking, which makes it suitable for use near sensitive electronic equipment, in MRI-adjacent environments, and in potentially explosive atmospheres such as mining, oil \u0026amp; gas, and chemical processing facilities.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Thick*Width*Length above, then add to cart.\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right thickness for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For electrical contact springs and relay blades, thicknesses of 0.1–0.5 mm are most common. For shim stock and precision spacers, 0.1–1.0 mm works well. For structural flat bar or tooling inserts, select 2 mm and above.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is C17200 beryllium copper stronger than standard copper or brass?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"In the age-hardened condition, C17200 BeCu achieves tensile strengths of 1,100–1,400 MPa — roughly 3–5× stronger than standard copper and significantly stronger than most brass alloys.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does beryllium copper corrode or rust?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Beryllium copper does not rust. It forms a thin, stable oxide layer that protects the surface from further atmospheric corrosion and resists seawater and many industrial chemicals.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I machine or cut this sheet with standard tools?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes, in the annealed condition, C17200 BeCu can be sheared, punched, CNC-milled, and bent using standard metalworking equipment. Always follow appropriate safety precautions when machining beryllium copper.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this sheet compatible with soldering or brazing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. C17200 beryllium copper is compatible with silver soldering and copper brazing processes. Standard tin-lead or lead-free solder can also be used for electrical connections.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between the 200 mm, 500 mm, and 1000 mm length options?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The 200 mm size is ideal for small prototype parts. The 500 mm length suits medium-run shim stock and strip cutting. The 1000 mm length is best for continuous strip applications or cutting multiple parts from a single piece.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is beryllium copper non-magnetic and non-sparking?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. C17200 BeCu is inherently non-magnetic and non-sparking, suitable for use near sensitive electronic equipment, in MRI-adjacent environments, and in potentially explosive atmospheres.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"0.1mm*200mm*200mm \/ 1Pcs","offer_id":52411429290258,"sku":"FXLGLBZSJ013832x1","price":11.27,"currency_code":"USD","in_stock":true},{"title":"0.15mm*200mm*200mm \/ 1Pcs","offer_id":52411429323026,"sku":"FXLGLBZSJ013833x1","price":15.9,"currency_code":"USD","in_stock":true},{"title":"0.2mm*200mm*200mm \/ 1Pcs","offer_id":52411429355794,"sku":"FXLGLBZSJ013834x1","price":18.43,"currency_code":"USD","in_stock":true},{"title":"0.25mm*200mm*200mm \/ 1Pcs","offer_id":52411429388562,"sku":"FXLGLBZSJ013835x1","price":22.56,"currency_code":"USD","in_stock":true},{"title":"0.3mm*200mm*200mm \/ 1Pcs","offer_id":52411429421330,"sku":"FXLGLBZSJ013836x1","price":26.72,"currency_code":"USD","in_stock":true},{"title":"0.4mm*200mm*200mm 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