{"product_id":"6mm-round-copper-heat-pipe-sintered-cpu-gpu","title":"6mm Round Copper Heat Pipe – Sintered Wick Straight Tube for CPU GPU Heatsink DIY Cooling","description":"\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 length for my heat pipe?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the straight-line distance the pipe needs to travel from the heat source (CPU, GPU, or chipset) to the heatsink fin array. Available lengths run from 60mm (≈2.4\\\") to 460mm (≈18.1\\\") in 10mm increments. When routing around components, account for any bends — a bent section is effectively shorter than its straight length. If in doubt, choose the next size up.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this heat pipe be bent to fit my build?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. To bend the pipe without kinking, heat the bend area to approximately 60\\u00b0C or above — for example by submerging it briefly in hot water or using a heat gun — then bend slowly and carefully. Always take appropriate burn-prevention precautions when handling heated metal. Overbending or sharp-angle bends may crack the tube wall and compromise thermal performance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the thermal transfer capacity of a 6mm copper heat pipe?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"A 6mm diameter sintered copper heat pipe typically handles 20–50W of continuous heat flux depending on length, orientation, and operating temperature. The working fluid activates at approximately 38\\u00b0C, so the pipe begins transferring heat passively once the heat source reaches that threshold. For higher TDP applications, multiple pipes in parallel are generally recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this heat pipe suitable for outdoor or high-humidity use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Copper is naturally resistant to corrosion in typical indoor electronics environments. These pipes are not designed for prolonged outdoor exposure, salt spray, or high-humidity industrial conditions. For such environments, additional protective coatings or sealed enclosures are generally recommended.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What devices and components are these heat pipes compatible with?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These 6mm round copper heat pipes are commonly used in CPU tower heatsinks, GPU cooling mods, power supply thermal upgrades, northbridge and southbridge chipset coolers, MOS transistor heatsink assemblies, and custom DIY cooling builds for compact electronics. They are compatible with any heatsink design that accepts a 6mm round heat pipe.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I attach the heat pipe to a heatsink or cold plate?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The most common attachment methods are soldering the pipe into a machined groove on the heatsink base, or press-fitting it into a tight-tolerance channel and securing with thermal epoxy or solder. Apply thermal paste between the pipe and any contact surface to minimize interface resistance. This is generally an intermediate-to-advanced DIY task requiring soldering skills or access to a press-fit jig.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What working fluid is inside, and does it require maintenance?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each pipe is factory-sealed with a liquid working fluid (typically deionized water or a similar low-boiling-point fluid) and requires no maintenance. The sintered copper wick returns condensed fluid to the evaporator end via capillary action, enabling continuous passive heat transport without any pump or external power.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e6mm Round Copper Heat Pipe for CPU \u0026amp; GPU DIY Cooling — Sintered Wick, Straight Tube\u003c\/h2\u003e\n    \u003cp\u003eWhen a CPU tower cooler runs hotter than it should, or a custom GPU cooling mod needs a reliable thermal link, the heat pipe is the critical component that makes or breaks the build. DIY PC builders, electronics repair technicians, and hardware modders who need a straight 6mm round copper heat pipe will find this sintered-wick, liquid-filled tube a direct-fit solution for restoring or upgrading thermal performance across a wide range of heatsink designs.\u003c\/p\u003e\n    \u003cp\u003eEach order is for one (1) individual straight round copper heat pipe, 6mm (approximately 1\/4\") in outer diameter. The tube is constructed from pure copper with a sintered copper powder wick and a factory-sealed liquid working fluid. Lengths are available from 60mm (≈2.4\") to 460mm (≈18.1\") in 10mm increments — 41 options in total — allowing precise matching to your specific heatsink or cooling layout. The working fluid activates at approximately 38°C, initiating passive two-phase heat transport.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include CPU tower heatsink repair and custom builds where a 6mm heat pipe for CPU cooling is required, GPU heatsink modification and thermal upgrade projects, and DIY cooling solutions for power supply units, MOS transistor arrays, northbridge and southbridge chipsets, and other compact electronics that generate localized heat.\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 These pipes fit any heatsink or cold plate designed for a standard 6mm round heat pipe. Verify the pipe channel diameter and required length in your specific heatsink before selecting a variant. The pipe can be carefully bent after heating to approximately 60°C — see FAQ for bending guidance.\n  \u003c\/div\u003e\n\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These 6mm Round Copper Heat Pipes\u003c\/h2\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔥\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSintered Copper Wick for Reliable Capillary Flow\u003c\/strong\u003e — The sintered powder wick structure provides strong, consistent capillary action that returns working fluid to the evaporator end, making this 6mm heat pipe for CPU cooling effective across a wide range of orientations including horizontal and slight anti-gravity configurations.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStandard 6mm Round Profile\u003c\/strong\u003e — At exactly 6mm outer diameter, these pipes are a drop-in fit for the most widely used heat pipe channel size in consumer CPU tower heatsinks, GPU coolers, and aftermarket cooling accessories.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e41 Length Options from 60mm to 460mm\u003c\/strong\u003e — With variants available in 10mm increments from 60mm (≈2.4\") to 460mm (≈18.1\"), you can select the exact length needed for your heatsink repair or custom DIY cooling build without cutting or splicing.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eLiquid-Filled \u0026amp; Factory-Sealed\u003c\/strong\u003e — Each pipe arrives pre-filled with working fluid and hermetically sealed, ready for installation. The two-phase heat transport system activates at approximately 38°C and requires no maintenance or refilling over its service life.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBendable for Custom Routing\u003c\/strong\u003e — The straight tube can be carefully shaped to fit non-linear heatsink layouts by heating the bend area to 60°C or above before forming, making it suitable for custom GPU cooling mods and compact chassis builds where straight routing is not possible.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛠️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBroad Application Range\u003c\/strong\u003e — Compatible with CPU tower coolers, GPU heatsink mods, power supply thermal upgrades, MOS transistor coolers, northbridge and southbridge chipset heatsinks, and any DIY electronics cooling project that requires a standard 6mm round heat pipe.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 6mm Round Copper Heat Pipe\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eStraight Round Sintered Copper Heat Pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePure copper (tube body \u0026amp; sintered wick)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWorking Fluid\u003c\/th\u003e\n\u003ctd\u003eSealed liquid (deionized water or equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWick Structure\u003c\/th\u003e\n\u003ctd\u003eSintered powder copper wick\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOuter Diameter\u003c\/th\u003e\n\u003ctd\u003e6mm (≈1\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTube Shape\u003c\/th\u003e\n\u003ctd\u003eStraight round (can be bent after heating)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Lengths\u003c\/th\u003e\n\u003ctd\u003e60mm–460mm \/ ≈2.4\"–18.1\" in 10mm steps (see variant options)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWorking Fluid Activation Temp.\u003c\/th\u003e\n\u003ctd\u003eApproximately 38°C (100°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThermal Capacity (typical)\u003c\/th\u003e\n\u003ctd\u003eGenerally 20–50W depending on length and orientation\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural copper\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTypical Applications\u003c\/th\u003e\n\u003ctd\u003eCPU heatsink, GPU cooling mod, MOS\/chipset cooler, PSU thermal upgrade, DIY cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e The working fluid activates at approximately 38°C — the pipe will feel warm to the touch at the condenser end once the heat source reaches this temperature, confirming it is functioning correctly. When bending, always heat the pipe to 60°C or above first and take appropriate burn-prevention precautions. Overbending or sharp kinks may crack the tube and reduce thermal performance.\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 length for my heat pipe?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMeasure the straight-line distance the pipe needs to travel from the heat source (CPU, GPU, or chipset) to the heatsink fin array. Available lengths run from 60mm (≈2.4\") to 460mm (≈18.1\") in 10mm increments. When routing around components, account for any bends — a bent section is effectively shorter than its straight length. If in doubt, choose the next size up.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan this heat pipe be bent to fit my build?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. To bend the pipe without kinking, heat the bend area to approximately 60°C or above — for example by submerging it briefly in hot water or using a heat gun — then bend slowly and carefully. Always take appropriate burn-prevention precautions when handling heated metal. Overbending or sharp-angle bends may crack the tube wall and compromise thermal performance.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the thermal transfer capacity of a 6mm copper heat pipe?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eA 6mm diameter sintered copper heat pipe typically handles 20–50W of continuous heat flux depending on length, orientation, and operating temperature. The working fluid activates at approximately 38°C, so the pipe begins transferring heat passively once the heat source reaches that threshold. For higher TDP applications, multiple pipes in parallel are generally recommended.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this heat pipe suitable for outdoor or high-humidity use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eCopper is naturally resistant to corrosion in typical indoor electronics environments. These pipes are not designed for prolonged outdoor exposure, salt spray, or high-humidity industrial conditions. For such environments, additional protective coatings or sealed enclosures are generally recommended.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat devices and components are these heat pipes compatible with?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese 6mm round copper heat pipes are commonly used in CPU tower heatsinks, GPU cooling mods, power supply thermal upgrades, northbridge and southbridge chipset coolers, MOS transistor heatsink assemblies, and custom DIY cooling builds for compact electronics. They are compatible with any heatsink design that accepts a 6mm round heat pipe.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I attach the heat pipe to a heatsink or cold plate?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe most common attachment methods are soldering the pipe into a machined groove on the heatsink base, or press-fitting it into a tight-tolerance channel and securing with thermal epoxy or solder. Apply thermal paste between the pipe and any contact surface to minimize interface resistance. This is generally an intermediate-to-advanced DIY task requiring soldering skills or access to a press-fit jig.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat working fluid is inside, and does it require maintenance?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eEach pipe is factory-sealed with a liquid working fluid (typically deionized water or a similar low-boiling-point fluid) and requires no maintenance. The sintered copper wick returns condensed fluid to the evaporator end via capillary action, enabling continuous passive heat transport without any pump or external power.\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 length above, then add to cart.\n  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