{"product_id":"99-9-pure-copper-plate-sheet-rectangle-square-50-100-200-300mm","title":"99.9% Pure Copper Plate Sheet Rectangle\/Square 50\/100\/200\/300mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003e99.9% Pure Copper Plate Sheet — Precision-Cut for DIY, Electrical \u0026amp; Craft Use\u003c\/h2\u003e\n\u003cp\u003eWhen your project demands reliable electrical conductivity, thermal performance, and a material that machines cleanly without surprises, standard hardware-store metal simply falls short. Makers, electronics hobbyists, jewelers, and small workshop operators who need a consistent, traceable copper stock will find this sheet an essential addition to their bench.\u003c\/p\u003e\n\u003cp\u003eEach piece is cut from 99.9% pure copper flat stock, available in thicknesses from 0.5 mm (approximately 0.020 in) to 4 mm (approximately 0.157 in) and in rectangular or square formats ranging from 50 × 100 mm up to 300 × 300 mm (roughly 2 × 4 in to 11.8 × 11.8 in). Surfaces are mill-finished with a characteristic reddish-orange tone and are free of coatings or plating.\u003c\/p\u003e\n\u003cp\u003eTypical applications include custom bus bars and grounding straps for electrical enclosures, heat spreader blanks for DIY PC cooling builds, stamping and forming blanks for copper jewelry and decorative metalwork, and shielding panels for RF or EMI enclosures in electronics prototyping.\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 soldering, brazing, riveting, and mechanical fastening. Compatible with standard copper-rated cutting tools, shears, and CNC routers. Not pre-drilled — ready for custom fabrication.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Pure Copper Plate Sheets\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔬\u003c\/span\u003e\n\u003cstrong\u003e99.9% Copper Purity\u003c\/strong\u003e\n\u003cp\u003eVerified high-purity copper composition delivers consistent electrical conductivity (IACS ≥ 99%) and thermal transfer, making it suitable for precision electrical and thermal management applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003cstrong\u003eWide Size Range\u003c\/strong\u003e\n\u003cp\u003eAvailable in thicknesses from 0.5 mm to 4 mm and sheet dimensions from 50 × 100 mm to 300 × 300 mm, covering a broad range of DIY and light industrial cutting requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n\u003cstrong\u003ePrecision-Cut Flat Stock\u003c\/strong\u003e\n\u003cp\u003eSheets are cut to stated dimensions with straight edges, minimizing prep time. Suitable for direct use as blanks for stamping, etching, forming, or further machining.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n\u003cstrong\u003eNatural Corrosion Resistance\u003c\/strong\u003e\n\u003cp\u003eCopper develops a stable patina over time that slows further oxidation. For indoor and controlled-environment applications, no additional coating is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\n\u003cstrong\u003eExcellent Electrical \u0026amp; Thermal Conductivity\u003c\/strong\u003e\n\u003cp\u003eWith electrical conductivity among the highest of any common engineering metal, these sheets are well-suited for bus bars, grounding plates, and heat spreader applications.\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\u003ePure copper is soft enough to cut with standard metal shears, drill, and bend without cracking, while remaining rigid enough to hold shape in finished assemblies.\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 — Pure Copper Plate Sheet\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e99.9% Pure Copper (C11000 equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e0.5 mm – 4 mm (0.020 in – 0.157 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth \/ Length Range\u003c\/th\u003e\n\u003ctd\u003e50 mm – 300 mm (1.97 in – 11.81 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRectangle \/ Square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eMill finish (uncoated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eReddish-orange (natural copper)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003e≥ 99% IACS (typical for 99.9% Cu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eSoft \/ annealed (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExact Dimensions\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\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 project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor light electrical shielding, jewelry, or decorative work, 0.5 mm – 1 mm is typically sufficient. For structural bus bars, heat spreaders, or parts that need to hold shape under mechanical load, 1.5 mm – 4 mm is more appropriate. If you are unsure, select a mid-range thickness (1.5 mm – 2 mm) as a starting point for prototyping.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this copper strong enough for structural or load-bearing use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePure copper (C11000) is a soft, ductile metal. It is not intended for structural load-bearing applications. It is well-suited for electrical, thermal, and decorative uses where formability and conductivity matter more than tensile strength. For structural parts, consider copper alloys such as brass or bronze instead.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill the copper sheet rust or corrode over time?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCopper does not rust (rust is specific to iron-based metals). Over time, copper oxidizes and develops a patina ranging from dark brown to green (verdigris), depending on the environment. This patina is stable and actually slows further corrosion. For applications requiring a bright finish, periodic polishing or a clear lacquer coating can be applied.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I solder or braze these copper sheets?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. 99.9% pure copper is one of the most solderable and brazeable metals available. It bonds readily with standard tin-lead or lead-free solder, silver solder, and brazing alloys. Clean the surface with flux before soldering for best results.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these sheets compatible with CNC routers or laser cutters?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCNC routing and milling work well with copper sheets, particularly at thicknesses of 1 mm and above. Laser cutting copper is more challenging due to its high reflectivity; fiber lasers with sufficient power can cut thinner sheets, but CO₂ lasers are generally not recommended for copper. Standard metal shears and jigsaws with metal-cutting blades are effective for most DIY applications.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I select the right size variant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eVariants are listed as Thick × Width × Length in millimeters (e.g., 1.5 × 100 × 200 mm). Measure your required blank size first, then select the variant that meets or slightly exceeds your dimensions. If you need a custom size not listed, contact us to confirm availability.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these sheets for grounding or earthing applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. High-purity copper is the standard material for electrical grounding straps, bus bars, and earthing plates due to its low resistance and reliable long-term conductivity. Ensure mechanical connections are tight and use appropriate hardware rated for copper to avoid galvanic corrosion at joints.\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 project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For light electrical shielding, jewelry, or decorative work, 0.5 mm – 1 mm is typically sufficient. For structural bus bars, heat spreaders, or parts that need to hold shape under mechanical load, 1.5 mm – 4 mm is more appropriate.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this copper strong enough for structural or load-bearing use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Pure copper (C11000) is a soft, ductile metal not intended for structural load-bearing applications. It is well-suited for electrical, thermal, and decorative uses.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will the copper sheet rust or corrode over time?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Copper does not rust. Over time it develops a stable patina that slows further corrosion. Periodic polishing or a clear lacquer coating can maintain a bright finish.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I solder or braze these copper sheets?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. 99.9% pure copper bonds readily with standard tin-lead or lead-free solder, silver solder, and brazing alloys. Clean the surface with flux before soldering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these sheets compatible with CNC routers or laser cutters?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"CNC routing works well with copper sheets. Laser cutting is more challenging due to copper's high reflectivity; fiber lasers can cut thinner sheets. Standard metal shears and jigsaws are effective for most DIY applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I select the right size variant?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Variants are listed as Thick × Width × Length in millimeters. Measure your required blank size first, then select the variant that meets or slightly exceeds your dimensions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these sheets for grounding or earthing applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. High-purity copper is the standard material for electrical grounding straps, bus bars, and earthing plates due to its low resistance and reliable long-term conductivity.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"0.5*100*100mm \/ 1pcs","offer_id":52411384561938,"sku":"OOJ0010-2x1","price":7.79,"currency_code":"USD","in_stock":true},{"title":"0.5*100*150mm \/ 1pcs","offer_id":52411384594706,"sku":"OOJ0010-3x1","price":10.85,"currency_code":"USD","in_stock":true},{"title":"0.5*100*200mm \/ 1pcs","offer_id":52411384627474,"sku":"OOJ0010-4x1","price":14.25,"currency_code":"USD","in_stock":true},{"title":"0.5*200*200mm \/ 1pcs","offer_id":52411384660242,"sku":"OOJ0010-5x1","price":22.62,"currency_code":"USD","in_stock":true},{"title":"0.8*70*140mm \/ 1pcs","offer_id":52411384693010,"sku":"OOJ0010-8x1","price":9.76,"currency_code":"USD","in_stock":true},{"title":"0.8*100*100mm \/ 1pcs","offer_id":52411384725778,"sku":"OOJ0010-9x1","price":9.86,"currency_code":"USD","in_stock":true},{"title":"0.8*100*140mm \/ 1pcs","offer_id":52411384758546,"sku":"OOJ0010-10x1","price":13.65,"currency_code":"USD","in_stock":true},{"title":"0.8*100*200mm \/ 1pcs","offer_id":52411384791314,"sku":"OOJ0010-11x1","price":18.37,"currency_code":"USD","in_stock":true},{"title":"0.8*200*200mm \/ 1pcs","offer_id":52411384824082,"sku":"OOJ0010-12x1","price":35.37,"currency_code":"USD","in_stock":true},{"title":"0.8*200*300mm \/ 1pcs","offer_id":52411384856850,"sku":"OOJ0010-13x1","price":52.39,"currency_code":"USD","in_stock":true},{"title":"0.8*300*300mm \/ 1pcs","offer_id":52411384889618,"sku":"OOJ0010-14x1","price":77.57,"currency_code":"USD","in_stock":true},{"title":"1*100*100mm \/ 1pcs","offer_id":52411384922386,"sku":"OOJ0010-15x1","price":11.98,"currency_code":"USD","in_stock":true},{"title":"1*100*150mm \/ 1pcs","offer_id":52411384955154,"sku":"OOJ0010-16x1","price":17.14,"currency_code":"USD","in_stock":true},{"title":"1*100*200mm \/ 1pcs","offer_id":52411384987922,"sku":"OOJ0010-17x1","price":21.98,"currency_code":"USD","in_stock":true},{"title":"1*200*200mm \/ 1pcs","offer_id":52411385020690,"sku":"OOJ0010-18x1","price":43.89,"currency_code":"USD","in_stock":true},{"title":"1*200*300mm \/ 1pcs","offer_id":52411385053458,"sku":"OOJ0010-19x1","price":65.16,"currency_code":"USD","in_stock":true},{"title":"1*300*300mm \/ 1pcs","offer_id":52411385086226,"sku":"OOJ0010-20x1","price":96.07,"currency_code":"USD","in_stock":true},{"title":"1.2*100*100mm \/ 1pcs","offer_id":52411385118994,"sku":"OOJ0010-21x1","price":14.77,"currency_code":"USD","in_stock":true},{"title":"1.2*100*150mm \/ 1pcs","offer_id":52411385151762,"sku":"OOJ0010-22x1","price":21.46,"currency_code":"USD","in_stock":true},{"title":"1.2*100*200mm \/ 1pcs","offer_id":52411385184530,"sku":"OOJ0010-23x1","price":27.51,"currency_code":"USD","in_stock":true},{"title":"1.2*200*200mm \/ 1pcs","offer_id":52411385217298,"sku":"OOJ0010-24x1","price":52.39,"currency_code":"USD","in_stock":true},{"title":"1.2*200*300mm \/ 1pcs","offer_id":52411385250066,"sku":"OOJ0010-25x1","price":77.26,"currency_code":"USD","in_stock":true},{"title":"1.2*300*300mm \/ 1pcs","offer_id":52411385282834,"sku":"OOJ0010-26x1","price":114.25,"currency_code":"USD","in_stock":true},{"title":"1.5*100*100mm \/ 1pcs","offer_id":52411385315602,"sku":"OOJ0010-27x1","price":17.14,"currency_code":"USD","in_stock":true},{"title":"1.5*100*150mm \/ 1pcs","offer_id":52411385348370,"sku":"OOJ0010-28x1","price":25.35,"currency_code":"USD","in_stock":true},{"title":"1.5*100*200mm \/ 1pcs","offer_id":52411385381138,"sku":"OOJ0010-29x1","price":32.29,"currency_code":"USD","in_stock":true},{"title":"1.5*200*200mm \/ 1pcs","offer_id":52411385413906,"sku":"OOJ0010-30x1","price":65.16,"currency_code":"USD","in_stock":true},{"title":"1.5*200*300mm \/ 1pcs","offer_id":52411385446674,"sku":"OOJ0010-31x1","price":96.07,"currency_code":"USD","in_stock":true},{"title":"1.5*300*300mm \/ 1pcs","offer_id":52411385479442,"sku":"OOJ0010-32x1","price":142.8,"currency_code":"USD","in_stock":true},{"title":"2*100*100mm \/ 1pcs","offer_id":52411385512210,"sku":"OOJ0010-33x1","price":22.62,"currency_code":"USD","in_stock":true},{"title":"2*100*150mm \/ 1pcs","offer_id":52411385544978,"sku":"OOJ0010-34x1","price":33.58,"currency_code":"USD","in_stock":true},{"title":"2*100*200mm \/ 1pcs","offer_id":52411385577746,"sku":"OOJ0010-35x1","price":43.25,"currency_code":"USD","in_stock":true},{"title":"2*200*200mm \/ 1pcs","offer_id":52411385610514,"sku":"OOJ0010-36x1","price":85.45,"currency_code":"USD","in_stock":true},{"title":"2*200*300mm \/ 1pcs","offer_id":52411385643282,"sku":"OOJ0010-37x1","price":126.36,"currency_code":"USD","in_stock":true},{"title":"2*300*300mm \/ 1pcs","offer_id":52411385676050,"sku":"OOJ0010-38x1","price":189.52,"currency_code":"USD","in_stock":true},{"title":"2.5*100*100mm \/ 1pcs","offer_id":52411385708818,"sku":"OOJ0010-39x1","price":27.98,"currency_code":"USD","in_stock":true},{"title":"2.5*100*150mm \/ 1pcs","offer_id":52411385741586,"sku":"OOJ0010-40x1","price":41.14,"currency_code":"USD","in_stock":true},{"title":"2.5*100*200mm \/ 1pcs","offer_id":52411385774354,"sku":"OOJ0010-41x1","price":53.56,"currency_code":"USD","in_stock":true},{"title":"2.5*200*200mm \/ 1pcs","offer_id":52411385807122,"sku":"OOJ0010-42x1","price":106.53,"currency_code":"USD","in_stock":true},{"title":"2.5*200*300mm \/ 1pcs","offer_id":52411385839890,"sku":"OOJ0010-43x1","price":157.94,"currency_code":"USD","in_stock":true},{"title":"2.5*300*300mm \/ 1pcs","offer_id":52411385872658,"sku":"OOJ0010-44x1","price":238.16,"currency_code":"USD","in_stock":true},{"title":"3*100*100mm \/ 1pcs","offer_id":52411385905426,"sku":"OOJ0010-45x1","price":33.58,"currency_code":"USD","in_stock":true},{"title":"3*100*150mm \/ 1pcs","offer_id":52411385938194,"sku":"OOJ0010-46x1","price":49.37,"currency_code":"USD","in_stock":true},{"title":"3*100*200mm \/ 1pcs","offer_id":52411385970962,"sku":"OOJ0010-47x1","price":65.16,"currency_code":"USD","in_stock":true},{"title":"3*200*200mm \/ 1pcs","offer_id":52411386003730,"sku":"OOJ0010-48x1","price":127.65,"currency_code":"USD","in_stock":true},{"title":"3*200*300mm \/ 1pcs","offer_id":52411386036498,"sku":"OOJ0010-49x1","price":189.52,"currency_code":"USD","in_stock":true},{"title":"3*300*300mm \/ 1pcs","offer_id":52411386069266,"sku":"OOJ0010-50x1","price":290.05,"currency_code":"USD","in_stock":true},{"title":"4*100*100mm \/ 1pcs","offer_id":52411386102034,"sku":"OOJ0010-51x1","price":43.89,"currency_code":"USD","in_stock":true},{"title":"4*100*150mm \/ 1pcs","offer_id":52411386134802,"sku":"OOJ0010-52x1","price":65.16,"currency_code":"USD","in_stock":true},{"title":"4*100*200mm \/ 1pcs","offer_id":52411386167570,"sku":"OOJ0010-53x1","price":85.14,"currency_code":"USD","in_stock":true},{"title":"4*200*200mm \/ 1pcs","offer_id":52411386200338,"sku":"OOJ0010-54x1","price":171.48,"currency_code":"USD","in_stock":true},{"title":"4*200*300mm \/ 1pcs","offer_id":52411386233106,"sku":"OOJ0010-55x1","price":253.3,"currency_code":"USD","in_stock":true},{"title":"4*300*300mm \/ 1pcs","offer_id":52411386265874,"sku":"OOJ0010-56x1","price":387.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of3_7af3c3d0-1ecc-43eb-b4a5-ff97944b6d1a.jpg?v=1782392101","url":"https:\/\/homediyer.com\/products\/99-9-pure-copper-plate-sheet-rectangle-square-50-100-200-300mm","provider":"HomeDIYer","version":"1.0","type":"link"}