{"product_id":"3-4-5-6mm-pure-copper-strip-flat-bar-t2-cu-metal-copper-sheet-plate-100mm-length","title":"3\/4\/5\/6mm Pure Copper Strip Flat Bar T2 Cu Metal Copper Sheet Plate 100mm Length","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003ePure Copper Strip Flat Bar — T2 Cu Metal Sheet for Electrical, Craft \u0026amp; DIY Metalwork\u003c\/h2\u003e\n    \u003cp\u003eWhen your project demands reliable conductivity and precise dimensions, sourcing the right copper flat bar can be a frustrating guessing game. Whether you are a hobbyist fabricating custom bus bars, an electrician needing short copper bridging strips, or a maker crafting decorative metalwork, inconsistent sizing and impure alloys waste time and money. These T2 pure copper strip flat bars are designed for DIYers and professionals who need dependable material they can cut, bend, and solder with confidence.\u003c\/p\u003e\n    \u003cp\u003eEach piece is machined from T2-grade copper (≥99.9% Cu), delivering excellent electrical conductivity and thermal performance. Available in four thicknesses — 3mm, 4mm, 5mm, and 6mm — and widths ranging from 10mm to 50mm (approximately 0.39 in to 1.97 in), with a fixed 100mm (≈3.94 in) length per piece. Quantity options of 1, 2, 3, or 4 pieces per order let you buy exactly what you need without overstocking.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include DIY copper bus bar fabrication for battery packs and solar systems, custom grounding straps and electrical bonding strips, jewelry-making and decorative metalwork inlays, heat-sink shims and thermal interface components, and small-scale machining or CNC milling stock for copper parts.\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    Compatible with standard soldering, brazing, and mechanical fastening. Suitable for use in electrical, thermal, and decorative applications requiring T2-grade copper.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These Pure Copper Strip Flat Bars\u003c\/h2\u003e\n    \u003cdiv class=\"hdiy-list\"\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔶\u003c\/span\u003e\n        \u003cstrong\u003eT2-Grade Copper (≥99.9% Cu)\u003c\/strong\u003e — Pure copper strip flat bar composition ensures low electrical resistance and strong thermal conductivity, making it reliable for bus bars, grounding, and heat-transfer applications.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n        \u003cstrong\u003eMulti-Size Selection\u003c\/strong\u003e — Choose from 3mm, 4mm, 5mm, or 6mm thickness combined with widths of 10mm, 15mm, 20mm, 25mm, 30mm, 40mm, or 50mm — all at a consistent 100mm length — so you get the exact cross-section your project requires.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n        \u003cstrong\u003eMachinable \u0026amp; Formable\u003c\/strong\u003e — Copper's natural ductility allows these flat bars to be cut with a hacksaw or angle grinder, drilled, bent cold, and soldered or brazed without cracking or delaminating.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔌\u003c\/span\u003e\n        \u003cstrong\u003eExcellent Electrical Conductivity\u003c\/strong\u003e — T2 copper offers conductivity of approximately 57–58 MS\/m (IACS ≥100%), making these strips a dependable choice for battery interconnects, solar panel wiring, and custom electrical bus bars.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n        \u003cstrong\u003eNatural Corrosion Resistance\u003c\/strong\u003e — Copper forms a stable patina over time that slows further oxidation, providing long-term durability in indoor electrical enclosures, workshop environments, and decorative installations.\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n        \u003cstrong\u003eFlexible Quantity Options\u003c\/strong\u003e — Order 1, 2, 3, or 4 pieces per variant to match your exact project needs, reducing waste and letting you prototype before committing to larger quantities.\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 — Copper Flat Bar Strip\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eT2 Pure Copper (≥99.9% Cu)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThickness Options\u003c\/th\u003e\n\u003ctd\u003e3mm \/ 4mm \/ 5mm \/ 6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWidth Options\u003c\/th\u003e\n\u003ctd\u003e10mm \/ 15mm \/ 20mm \/ 25mm \/ 30mm \/ 40mm \/ 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e100mm (≈3.94 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003e≥100% IACS (approx. 57–58 MS\/m)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThermal Conductivity\u003c\/th\u003e\n\u003ctd\u003eApprox. 385–400 W\/(m·K)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTensile Strength\u003c\/th\u003e\n\u003ctd\u003eTypically 200–250 MPa (annealed state)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eMill finish (slight oxidation may be present; clean before use)\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\u003eWeight per Piece\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eReddish-orange copper\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eElectrical bus bars, grounding straps, thermal shims, metalwork, jewelry\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\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right thickness and width for my project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eStart with your current-carrying requirement or mechanical load. For low-current signal or grounding applications, 3mm thickness is often sufficient. For battery bus bars or higher-current connections (30A+), consider 4mm or 5mm. Width determines the cross-sectional area — wider strips carry more current. If you are unsure, select the variant closest to your calculated cross-section (thickness × width in mm²) and verify against your ampacity tables.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is T2 copper and how does it differ from other copper grades?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eT2 copper is a designation for electrolytic tough-pitch (ETP) copper with a purity of ≥99.9% Cu. It offers excellent electrical conductivity (≥100% IACS), good thermal conductivity, and is easy to solder and braze. It differs from lower-purity brass or bronze alloys, which trade conductivity for hardness. T2 is the standard choice for electrical and thermal applications where conductivity is the primary requirement.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these copper strips be soldered or brazed?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. T2 copper solders readily with standard rosin-core or water-soluble flux solder. For brazing, use a silver-bearing brazing alloy and appropriate flux. Clean the surface with fine sandpaper or a wire brush before joining to remove any surface oxidation and ensure a strong bond.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWill the copper strips corrode or tarnish over time?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eCopper naturally oxidizes when exposed to air and moisture, forming a brownish or greenish patina (verdigris). This patina actually slows further corrosion. For electrical connections, clean contact surfaces before assembly and apply a thin layer of electrical contact grease or tin-plate the contact area to maintain low resistance over time. In decorative applications, the patina is often desirable and can be accelerated or sealed as needed.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these strips compatible with aluminum or steel components?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eCopper can be used alongside aluminum and steel, but direct contact between copper and aluminum in a wet environment can cause galvanic corrosion. Use bi-metallic washers or anti-oxidant compound when joining copper to aluminum bus bars. Copper-to-steel contact is generally less problematic but should still be protected in outdoor or high-humidity environments.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I cut or drill these flat bars at home?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. Copper is a soft, ductile metal that cuts cleanly with a hacksaw, angle grinder with a metal-cutting disc, or tin snips (for thinner pieces). Drilling is straightforward with standard HSS drill bits — use cutting oil and moderate speed to prevent work-hardening. Deburr cut edges with a file or sandpaper for safe handling and clean electrical contact.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many pieces do I need for a typical DIY battery bus bar?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eA typical 4S or 8S LiFePO4 battery pack requires one bus bar per cell-to-cell connection. For a 4S pack, you would need 3 bus bars; for an 8S pack, 7 bus bars. Order the quantity variant that matches your build, or order extra pieces to allow for test cuts and adjustments. The 2-pcs and 4-pcs variants offer the best value for small battery builds.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your Thickness, Size, and Qty 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 and width for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Start with your current-carrying requirement or mechanical load. For low-current signal or grounding applications, 3mm thickness is often sufficient. For battery bus bars or higher-current connections (30A+), consider 4mm or 5mm. Width determines the cross-sectional area — wider strips carry more current. Select the variant closest to your calculated cross-section (thickness × width in mm²) and verify against your ampacity tables.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is T2 copper and how does it differ from other copper grades?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"T2 copper is a designation for electrolytic tough-pitch (ETP) copper with a purity of ≥99.9% Cu. It offers excellent electrical conductivity (≥100% IACS), good thermal conductivity, and is easy to solder and braze. It is the standard choice for electrical and thermal applications where conductivity is the primary requirement.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these copper strips be soldered or brazed?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. T2 copper solders readily with standard rosin-core or water-soluble flux solder. For brazing, use a silver-bearing brazing alloy and appropriate flux. Clean the surface before joining to remove oxidation and ensure a strong bond.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will the copper strips corrode or tarnish over time?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Copper naturally oxidizes when exposed to air and moisture, forming a patina that slows further corrosion. For electrical connections, clean contact surfaces before assembly and apply electrical contact grease or tin-plate the contact area to maintain low resistance over time.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these strips compatible with aluminum or steel components?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Copper can be used alongside aluminum and steel, but direct contact between copper and aluminum in a wet environment can cause galvanic corrosion. Use bi-metallic washers or anti-oxidant compound when joining copper to aluminum. Copper-to-steel contact should be protected in outdoor or high-humidity environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I cut or drill these flat bars at home?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Copper cuts cleanly with a hacksaw, angle grinder, or tin snips. Drilling is straightforward with standard HSS drill bits — use cutting oil and moderate speed. Deburr cut edges with a file or sandpaper for safe handling.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many pieces do I need for a typical DIY battery bus bar?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A typical 4S LiFePO4 battery pack requires 3 bus bars; an 8S pack requires 7. Order the quantity variant that matches your build, or order extra pieces to allow for test cuts and adjustments.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"3mm \/ 10*100mm \/ 4 pcs","offer_id":52409070387474,"sku":"CHERRY013548x1","price":18.07,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 15*100mm \/ 3 pcs","offer_id":52409070420242,"sku":"CHERRY013549x1","price":18.31,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 20*100mm \/ 2 pcs","offer_id":52409070453010,"sku":"CHERRY013550x1","price":16.9,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 30*100mm \/ 1 pcs","offer_id":52409070485778,"sku":"CHERRY013551x1","price":14.46,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 40*100mm \/ 1 pcs","offer_id":52409070518546,"sku":"CHERRY013552x1","price":16.33,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 20*100mm \/ 2 pcs","offer_id":52409070551314,"sku":"CHERRY013553x1","price":20.64,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 25*100mm \/ 2 pcs","offer_id":52409070584082,"sku":"CHERRY013554x1","price":24.37,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 30*100mm \/ 1 pcs","offer_id":52409070616850,"sku":"CHERRY013555x1","price":16.9,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 40*100mm \/ 1 pcs","offer_id":52409070649618,"sku":"CHERRY013556x1","price":20.64,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 50*100mm \/ 1 pcs","offer_id":52409070682386,"sku":"CHERRY013557x1","price":24.37,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 15*100mm \/ 2 pcs","offer_id":52409070715154,"sku":"CHERRY013558x1","price":19.71,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 20*100mm \/ 1 pcs","offer_id":52409070747922,"sku":"CHERRY013559x1","price":15.04,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 25*100mm \/ 1 pcs","offer_id":52409070780690,"sku":"CHERRY013560x1","price":17.38,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 30*100mm \/ 1 pcs","offer_id":52409070813458,"sku":"CHERRY013561x1","price":19.71,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 40*100mm \/ 1 pcs","offer_id":52409070846226,"sku":"CHERRY013562x1","price":24.37,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 50*100mm \/ 1 pcs","offer_id":52409070878994,"sku":"CHERRY013563x1","price":29.04,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 20*100mm \/ 1 pcs","offer_id":52409070911762,"sku":"CHERRY013564x1","price":16.9,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 30*100mm \/ 1 pcs","offer_id":52409070944530,"sku":"CHERRY013565x1","price":22.51,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 50*100mm \/ 1 pcs","offer_id":52409070977298,"sku":"CHERRY013566x1","price":33.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture3of10_19ca0b82-b19a-4d48-9ecc-2ebc785b1a3f.jpg?v=1782284758","url":"https:\/\/homediyer.com\/products\/3-4-5-6mm-pure-copper-strip-flat-bar-t2-cu-metal-copper-sheet-plate-100mm-length","provider":"HomeDIYer","version":"1.0","type":"link"}