{"product_id":"t2-copper-flat-bar-sheet-plate-strip-100mm-width-40-60mm","title":"T2 Copper Flat Bar Square Sheet Plate Strip 100mm Long-Width 40\/45\/50\/55\/60mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eT2 Copper Flat Bar Square Plate Strip 100mm — Solid Copper Block for Busbars, Thermal Interfaces \u0026amp; Precision Machining\u003c\/h2\u003e\n\u003cp\u003eWhen a project calls for a short, thick copper section with a near-square cross-section, sourcing the right blank is rarely straightforward. Electrical engineers, CNC machinists, and thermal management specialists who need a T2 copper flat bar in a compact 100mm length with substantial width and thickness turn to this solid strip — where the geometry does the work before you even pick up a tool.\u003c\/p\u003e\n\u003cp\u003eEach piece is cut from T2 copper (≥99.9% Cu) to a fixed 100mm length (approx. 3.94 in). Width options run from 40mm to 60mm (approx. 1.57–2.36 in) and thickness options from 35mm to 60mm (approx. 1.38–2.36 in), producing a dense, fully solid cross-section with no voids or seams. The near-square profile makes these pieces equally suited to use as flat bar stock or as compact copper block blanks.\u003c\/p\u003e\n\u003cp\u003eTypical applications include short busbar segments and connection blocks in switchgear panels, copper heat spreader blanks for high-wattage electronics cooling, grounding lug stock for heavy-duty earthing systems, and precision-machined contact pads or electrode blanks where a T2 copper flat bar with a thick, square cross-section is the starting point.\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 note:\u003c\/strong\u003e T2 copper is compatible with standard soldering, silver brazing, and TIG welding processes. Suitable for direct contact with copper, brass, and bronze components. For connections to aluminum, use an appropriate bimetallic transition connector to prevent galvanic corrosion.\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These T2 Copper Flat Bar Square Plate Strips\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eT2-Grade Purity (≥99.9% Cu):\u003c\/strong\u003e Electrical conductivity of approximately 58 MS\/m (IACS ~100%) and thermal conductivity of ~390 W\/(m·K) — the benchmark for commercially pure copper used in electrical and thermal applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eCompact 100mm Length, Near-Square Cross-Section:\u003c\/strong\u003e Fixed 100mm (3.94 in) length with width 40–60mm and thickness 35–60mm gives you a dense copper block that minimises material waste when machining custom contact pads, lugs, or heat spreaders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔲\u003c\/span\u003e\u003cstrong\u003eFully Solid — No Voids or Seams:\u003c\/strong\u003e Solid bar stock throughout the entire cross-section ensures uniform conductivity and mechanical integrity. No risk of internal porosity that could compromise current-carrying capacity or thermal transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eNatural Oxide Patina Protection:\u003c\/strong\u003e T2 copper develops a stable cupric oxide layer in air that slows further oxidation. In enclosed electrical enclosures and dry environments, no additional surface treatment is required for most applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\u003cstrong\u003eMachinable with Standard Workshop Tools:\u003c\/strong\u003e Soft\/annealed temper allows drilling, milling, sawing, and tapping with standard HSS tooling. Use cutting fluid for cleaner finishes and longer tool life when working with the thicker cross-sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eSold Individually (1 PCS per Unit):\u003c\/strong\u003e Each variant is listed and priced per piece, so you order the exact quantity and cross-section you need without committing to bulk packs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — T2 Copper Flat Bar Square Plate Strip\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial Grade\u003c\/th\u003e\n\u003ctd\u003eT2 Copper (≥99.9% Cu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003ctd\u003eFlat Bar \/ Square Solid Strip \/ Sheet Plate Block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFixed Length\u003c\/th\u003e\n\u003ctd\u003e100mm (approx. 3.94 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth Options\u003c\/th\u003e\n\u003ctd\u003e40mm, 45mm, 50mm, 55mm, 60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Options\u003c\/th\u003e\n\u003ctd\u003e35mm, 40mm, 45mm, 50mm, 55mm, 60mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCross-Section Profile\u003c\/th\u003e\n\u003ctd\u003eSolid rectangular \/ near-square (no hollow core)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003eApprox. 58 MS\/m (IACS ~100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThermal Conductivity\u003c\/th\u003e\n\u003ctd\u003eApprox. 390 W\/(m·K)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemper\u003c\/th\u003e\n\u003ctd\u003eSoft \/ Annealed (typical for T2 grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePacking Unit\u003c\/th\u003e\n\u003ctd\u003e1 PCS per order unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight per Piece\u003c\/th\u003e\n\u003ctd\u003eSee variant options (varies by width × thickness; density of copper ≈ 8,960 kg\/m³)\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 between the different width and thickness combinations?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe right combination depends on your application's current or thermal load and the physical space available. For busbar use, calculate the required cross-sectional area (width × thickness in mm²) based on your target current rating — a conservative guideline for T2 copper in enclosed installations is 1–2 A per mm². For machined blanks, choose the smallest cross-section that still gives you enough material to achieve your finished dimensions after cutting.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between this product and the 200mm-long version?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThis listing covers pieces cut to a fixed 100mm length, which suits applications where a compact, near-square copper block is needed — such as short busbar connectors, heat spreader blanks, or machined contact pads. The 200mm-long version provides a longer flat bar profile better suited to extended busbar runs or strip applications. Both are made from the same T2 copper grade.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this copper bar as a heat spreader or thermal interface block?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. T2 copper's thermal conductivity of approximately 390 W\/(m·K) makes it one of the most effective commercially available materials for heat spreading. The thick cross-sections available in this listing (35–60mm) provide substantial thermal mass, which is useful for buffering transient heat loads in power electronics, laser diode mounts, and high-wattage LED assemblies. Machine the mating surfaces flat to minimise thermal contact resistance.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWill the copper surface oxidize, and does that affect conductivity?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eT2 copper oxidizes in air, forming a thin cupric oxide (Cu₂O \/ CuO) layer. In dry indoor environments, this layer is stable and grows slowly. For electrical contact surfaces, oxidation can increase contact resistance over time. To maintain low-resistance connections, clean contact areas with fine abrasive or apply an electrical-grade anti-oxidant compound before assembly. Tin-plating is an option for long-term protection in humid environments.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs T2 copper suitable for welding or brazing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. T2 copper can be silver-brazed using standard silver-copper-phosphorus or silver-copper-zinc alloys with appropriate flux. TIG welding is also possible using deoxidized copper filler rod (e.g., ERCu), though copper's high thermal conductivity requires significant preheat (typically 300–500°C for thick sections) to achieve proper fusion. Soldering with tin-lead or lead-free solders is straightforward for lighter-duty joints.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I estimate the weight of a piece before ordering?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eUse the formula: Weight (kg) = Length (m) × Width (m) × Thickness (m) × 8,960. For example, a 100mm × 50mm × 50mm piece = 0.1 × 0.05 × 0.05 × 8,960 ≈ 2.24 kg. For a 100mm × 40mm × 35mm piece = 0.1 × 0.04 × 0.035 × 8,960 ≈ 1.25 kg. Use these estimates to plan handling and shipping requirements when ordering multiple pieces.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I drill or tap threads into this copper bar?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. T2 copper in soft\/annealed temper drills and taps readily with standard HSS tooling. Use a center punch before drilling to prevent bit wandering on the smooth surface. For tapping, use a spiral-flute tap with cutting oil to clear chips effectively — copper's ductility can cause chips to pack in straight-flute taps. Thread engagement of 1.5× the bolt diameter is recommended for reliable pull-out strength in copper.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e\n🛒 Select your Width x Length, Thickness, and Packing 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 between the different width and thickness combinations?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The right combination depends on your application's current or thermal load and the physical space available. For busbar use, calculate the required cross-sectional area based on your target current rating — a conservative guideline for T2 copper in enclosed installations is 1–2 A per mm². For machined blanks, choose the smallest cross-section that still gives you enough material after cutting.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between this product and the 200mm-long version?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This listing covers pieces cut to a fixed 100mm length, suited for compact copper block applications such as short busbar connectors, heat spreader blanks, or machined contact pads. The 200mm version provides a longer flat bar profile for extended busbar runs. Both use the same T2 copper grade.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this copper bar as a heat spreader or thermal interface block?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. T2 copper's thermal conductivity of approximately 390 W\/(m·K) makes it highly effective for heat spreading. The thick cross-sections (35–60mm) provide substantial thermal mass for buffering transient heat loads. Machine the mating surfaces flat to minimise thermal contact resistance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Will the copper surface oxidize, and does that affect conductivity?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"T2 copper oxidizes in air, forming a thin cupric oxide layer. For electrical contact surfaces, clean contact areas with fine abrasive or apply an anti-oxidant compound before assembly. Tin-plating is an option for long-term protection in humid environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is T2 copper suitable for welding or brazing?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. T2 copper can be silver-brazed or TIG welded using deoxidized copper filler rod. Thick sections require significant preheat (typically 300–500°C) for proper fusion. Soldering with tin-lead or lead-free solders is straightforward for lighter-duty joints.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I estimate the weight of a piece before ordering?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Use: Weight (kg) = Length (m) × Width (m) × Thickness (m) × 8,960. For example, a 100mm × 50mm × 50mm piece ≈ 2.24 kg. A 100mm × 40mm × 35mm piece ≈ 1.25 kg.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I drill or tap threads into this copper bar?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. T2 copper drills and taps readily with standard HSS tooling. Use a center punch before drilling and a spiral-flute tap with cutting oil for tapping. Thread engagement of 1.5× the bolt diameter is recommended for reliable pull-out strength.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"40mm x 100mm \/ 35mm \/ 1 PCS","offer_id":52409336758546,"sku":"Adaah2024BILINGQJD03420x1","price":77.37,"currency_code":"USD","in_stock":true},{"title":"45mm x 100mm \/ 35mm \/ 1 PCS","offer_id":52409336791314,"sku":"Adaah2024BILINGQJD03421x1","price":86.84,"currency_code":"USD","in_stock":true},{"title":"40mm x 100mm \/ 40mm \/ 1 PCS","offer_id":52409336824082,"sku":"Adaah2024BILINGQJD03423x1","price":88.25,"currency_code":"USD","in_stock":true},{"title":"45mm x 100mm \/ 40mm \/ 1 PCS","offer_id":52409336856850,"sku":"Adaah2024BILINGQJD03424x1","price":99.13,"currency_code":"USD","in_stock":true},{"title":"50mm x 100mm \/ 40mm \/ 1 PCS","offer_id":52409336889618,"sku":"Adaah2024BILINGQJD03425x1","price":110.01,"currency_code":"USD","in_stock":true},{"title":"45mm x 100mm \/ 45mm \/ 1 PCS","offer_id":52409336922386,"sku":"Adaah2024BILINGQJD03426x1","price":111.37,"currency_code":"USD","in_stock":true},{"title":"50mm x 100mm \/ 50mm \/ 1 PCS","offer_id":52409336955154,"sku":"Adaah2024BILINGQJD03427x1","price":137.35,"currency_code":"USD","in_stock":true},{"title":"55mm x 100mm \/ 55mm \/ 1 PCS","offer_id":52409336987922,"sku":"Adaah2024BILINGQJD03428x1","price":166.31,"currency_code":"USD","in_stock":true},{"title":"60mm x 100mm \/ 60mm \/ 1 PCS","offer_id":52409337020690,"sku":"Adaah2024BILINGQJD03429x1","price":197.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of8_82ef6ae0-0dd0-41b8-9b65-ebab673fb9ac.jpg?v=1782395922","url":"https:\/\/homediyer.com\/products\/t2-copper-flat-bar-sheet-plate-strip-100mm-width-40-60mm","provider":"HomeDIYer","version":"1.0","type":"link"}