{"product_id":"pure-copper-bar-solid-copper-rod","title":"Pure Copper Bar Dia 2mm（0.079\") Electrolytic Copper Rod","description":"\u003cdiv class=\"rk-pcb\"\u003e\n\u003cstyle\u003e\n.rk-pcb{--p:#005969;--a:#00AAFF;--t:#22303a;--m:#5b6b70;--bg:#f5f9fa;--bd:#d9e6e9;--w:#ffffff;font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,Helvetica,Arial,sans-serif;color:var(--t);line-height:1.75;font-size:16px;max-width:1180px;margin:0 auto;padding:0 16px;box-sizing:border-box}\n.rk-pcb *{box-sizing:border-box}\n.rk-pcb h2,.rk-pcb h3,.rk-pcb h4,.rk-pcb h5,.rk-pcb h6{color:var(--p);font-weight:700;line-height:1.35;margin:0 0 14px}\n.rk-pcb h2{font-size:clamp(22px,3.2vw,30px);padding-bottom:12px;border-bottom:3px solid var(--a);margin-top:42px}\n.rk-pcb h3{font-size:clamp(18px,2.4vw,22px);margin-top:32px;padding-left:14px;border-left:5px solid var(--a)}\n.rk-pcb h4{font-size:clamp(16px,2vw,18px);margin-top:24px;color:var(--t)}\n.rk-pcb h5{font-size:15px;margin-top:18px;color:var(--p);text-transform:uppercase;letter-spacing:.5px}\n.rk-pcb h6{font-size:14px;margin-top:14px;color:var(--a);font-weight:700}\n.rk-pcb p{margin:0 0 14px;color:var(--t)}\n.rk-pcb ul{margin:0 0 16px;padding-left:22px}\n.rk-pcb li{margin-bottom:8px;color:var(--t)}\n.rk-pcb li::marker{color:var(--a)}\n.rk-pcb .rk-lead{font-size:17px;color:var(--m)}\n.rk-pcb .rk-sec{margin-bottom:30px}\n.rk-pcb .rk-grid{display:grid;gap:18px;margin:20px 0}\n.rk-pcb .rk-g2{grid-template-columns:repeat(2,1fr)}\n.rk-pcb .rk-g3{grid-template-columns:repeat(3,1fr)}\n.rk-pcb .rk-g4{grid-template-columns:repeat(4,1fr)}\n.rk-pcb .rk-card{background:var(--w);border:1px solid var(--bd);border-radius:10px;padding:22px;transition:box-shadow .25s,transform .25s}\n.rk-pcb .rk-card:hover{box-shadow:0 8px 24px rgba(0,89,105,.10);transform:translateY(-2px)}\n.rk-pcb .rk-card h3,.rk-pcb .rk-card h4{margin-top:0;border:none;padding:0}\n.rk-pcb .rk-card h4{color:var(--p)}\n.rk-pcb .rk-icon{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--p),var(--a));color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin-bottom:12px;flex-shrink:0}\n.rk-pcb .rk-badge{display:inline-block;background:rgba(0,170,255,.10);color:var(--p);font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px;margin:0 6px 6px 0;letter-spacing:.3px}\n.rk-pcb .rk-glance{background:linear-gradient(135deg,#005969,#007a8c);color:#fff;border-radius:12px;padding:28px;margin:24px 0}\n.rk-pcb .rk-glance h3{color:#fff;border:none;padding:0;margin-top:0}\n.rk-pcb .rk-glance ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}\n.rk-pcb .rk-glance li{color:#eaf6f8;margin:0;padding-left:24px;position:relative}\n.rk-pcb .rk-glance li::before{content:\"\\2713\";position:absolute;left:0;color:var(--a);font-weight:700}\n.rk-pcb .rk-faq{border:1px solid var(--bd);border-radius:10px;padding:20px 24px;margin-bottom:14px;background:var(--w)}\n.rk-pcb .rk-faq h4{margin-top:0;color:var(--p)}\n.rk-pcb .rk-faq h5{margin:10px 0 6px;color:var(--m);text-transform:none;letter-spacing:normal;font-size:14px}\n.rk-pcb .rk-faq p:last-child{margin-bottom:0}\n.rk-pcb .rk-note{background:var(--bg);border-left:4px solid var(--a);padding:16px 20px;border-radius:0 8px 8px 0;margin:18px 0;color:var(--m)}\n.rk-pcb .rk-note strong{color:var(--p)}\n@media(max-width:900px){\n  .rk-pcb .rk-g4{grid-template-columns:repeat(2,1fr)}\n  .rk-pcb .rk-g3{grid-template-columns:repeat(2,1fr)}\n}\n@media(max-width:600px){\n  .rk-pcb{font-size:15px;padding:0 12px}\n  .rk-pcb .rk-g2,.rk-pcb .rk-g3,.rk-pcb .rk-g4{grid-template-columns:1fr}\n  .rk-pcb .rk-card{padding:18px}\n  .rk-pcb .rk-glance{padding:20px}\n  .rk-pcb .rk-faq{padding:16px 18px}\n}\n\u003c\/style\u003e\n\n\u003ch2\u003ePure Copper Bar — Solid Copper Rod for Superior Conductivity\u003c\/h2\u003e\n\u003cp class=\"rk-lead\"\u003ePremium \u003cstrong\u003epure copper bar\u003c\/strong\u003e manufactured from commercially pure 99.9% copper. Available as solid copper rod in round, flat bus bar, square, and hexagonal forms for electrical, industrial, construction, and craft applications.\u003c\/p\u003e\n\n\u003cp\u003eA \u003cstrong\u003epure copper bar\u003c\/strong\u003e is a solid, wrought copper product valued worldwide for its exceptional electrical conductivity, thermal performance, natural corrosion resistance, and distinctive warm reddish-gold finish. Unlike brass or bronze, which are copper alloys containing zinc or tin, our \u003cstrong\u003epure copper rod\u003c\/strong\u003e uses commercially pure copper with no intentional alloying additions, preserving copper’s natural properties at their maximum. Whether you call it \u003cstrong\u003ecopper bar stock\u003c\/strong\u003e, solid copper bar, or copper rod, you get a dependable, high-conductivity material suited to everything from heavy electrical bus work to precision machining and custom craft projects.\u003c\/p\u003e\n\n\u003cdiv class=\"rk-glance\"\u003e\n  \u003ch3\u003ePure Copper Bar at a Glance\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#fff\"\u003eMaterial:\u003c\/strong\u003e Commercially pure copper (99.9% Cu)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#fff\"\u003eForms:\u003c\/strong\u003e Round bar, flat bar \/ bus bar, square bar, hexagonal bar\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#fff\"\u003eKey properties:\u003c\/strong\u003e High electrical \u0026amp; thermal conductivity, corrosion resistant, ductile\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#fff\"\u003eFinish:\u003c\/strong\u003e Smooth, clean mill finish ready for fabrication or polishing\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#fff\"\u003eLengths:\u003c\/strong\u003e Standard straight lengths with custom cutting available\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n  \u003cspan class=\"rk-badge\"\u003epure copper bar\u003c\/span\u003e\n  \u003cspan class=\"rk-badge\"\u003esolid copper rod\u003c\/span\u003e\n  \u003cspan class=\"rk-badge\"\u003ecopper round bar\u003c\/span\u003e\n  \u003cspan class=\"rk-badge\"\u003ecopper bus bar\u003c\/span\u003e\n  \u003cspan class=\"rk-badge\"\u003ecopper bar stock\u003c\/span\u003e\n  \u003cspan class=\"rk-badge\"\u003ehigh conductivity copper\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eAvailable Forms of Pure Copper Bar\u003c\/h2\u003e\n\u003cp\u003ePure copper bar is produced in several standard cross-sections to match different engineering, electrical, and fabrication requirements. Each form of \u003cstrong\u003ecopper bar stock\u003c\/strong\u003e shares the same high-purity composition and reliable properties.\u003c\/p\u003e\n\n\u003cdiv class=\"rk-grid rk-g4\"\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003cdiv class=\"rk-icon\"\u003eR\u003c\/div\u003e\n    \u003ch4\u003eSolid Copper Round Bar\u003c\/h4\u003e\n    \u003cp\u003eThe most widely used form, \u003cstrong\u003epure copper round bar\u003c\/strong\u003e (also called copper round rod) is stocked across a broad range of diameters for electrical conductors, machined parts, fasteners, and craft work.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003cdiv class=\"rk-icon\"\u003eF\u003c\/div\u003e\n    \u003ch4\u003eCopper Flat Bar \u0026amp; Bus Bar\u003c\/h4\u003e\n    \u003cp\u003eFlat copper bar, commonly known as \u003cstrong\u003ecopper bus bar\u003c\/strong\u003e, is the standard conductor for power distribution, panel boards, switchgear, and \u003cstrong\u003ecopper grounding bar\u003c\/strong\u003e installations where a flat, high-surface-area conductor is required.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003cdiv class=\"rk-icon\"\u003eS\u003c\/div\u003e\n    \u003ch4\u003eCopper Square Bar\u003c\/h4\u003e\n    \u003cp\u003eSquare copper rod offers clean, straight edges and is frequently chosen for decorative trim, architectural hardware, and mechanical components that call for a uniform square profile.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003cdiv class=\"rk-icon\"\u003eH\u003c\/div\u003e\n    \u003ch4\u003eCopper Hexagonal Bar\u003c\/h4\u003e\n    \u003cp\u003e\u003cstrong\u003eCopper hex bar\u003c\/strong\u003e (hexagonal copper rod) is the preferred stock for turned parts, nuts, bolts, fittings, and CNC machining where a hex profile is needed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy Choose Pure Copper Bar Stock?\u003c\/h2\u003e\n\u003cp\u003ePure copper is one of the oldest and most trusted engineering metals, and solid \u003cstrong\u003ecopper rod stock\u003c\/strong\u003e remains indispensable across modern industry. Here are the key advantages that keep buyers choosing pure copper bar over alternative materials.\u003c\/p\u003e\n\n\u003cdiv class=\"rk-grid rk-g3\"\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eExceptional Electrical Conductivity\u003c\/h3\u003e\n    \u003cp\u003ePure copper sets the global benchmark for electrical conductivity among engineering metals. A \u003cstrong\u003ehigh conductivity copper bar\u003c\/strong\u003e ensures minimal energy loss and efficient current transfer, making it the preferred material for bus bars, connectors, grounding systems, and electrical components.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eOutstanding Thermal Conductivity\u003c\/h3\u003e\n    \u003cp\u003eCopper transfers heat faster than most common engineering metals. This makes \u003cstrong\u003epure copper rod\u003c\/strong\u003e an excellent choice for heat exchangers, thermal conductors, cooling systems, induction heating equipment, and any application requiring rapid, even heat transfer.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eNatural Corrosion Resistance\u003c\/h3\u003e\n    \u003cp\u003eWhen exposed to air, moisture, or soil, pure copper forms a protective patina that seals the surface against further degradation. This gives \u003cstrong\u003esolid copper bar\u003c\/strong\u003e a long service life outdoors, underground, and in marine-adjacent environments without requiring paint or additional coating.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eExcellent Workability\u003c\/h3\u003e\n    \u003cp\u003ePure copper bar is highly ductile and malleable. It can be machined, drilled, turned, milled, bent, stamped, forged, soldered, brazed, and welded with standard shop equipment, suiting both high-volume production and one-off custom fabrication.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eAntimicrobial Properties\u003c\/h3\u003e\n    \u003cp\u003eCopper is naturally antimicrobial, continuously killing a wide range of microbes on contact. This makes \u003cstrong\u003epure copper bar\u003c\/strong\u003e a smart choice for high-touch hardware, healthcare fixtures, food-processing equipment, and sanitary components.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eDistinctive Aesthetic Appeal\u003c\/h3\u003e\n    \u003cp\u003eCopper’s warm, reddish-gold color develops a rich living patina over time. It is a favorite material for decorative hardware, jewelry, sculptures, architectural accents, and custom metal art where appearance matters as much as performance.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eApplications of Pure Copper Bar\u003c\/h2\u003e\n\u003cp\u003eThanks to its unique combination of conductivity, workability, and durability, \u003cstrong\u003epure copper bar\u003c\/strong\u003e serves an enormous range of industries and projects. Below are the most common applications for solid copper rod and copper bar stock.\u003c\/p\u003e\n\n\u003ch3\u003eElectrical \u0026amp; Electronics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectrical bus bars and power distribution conductors\u003c\/li\u003e\n  \u003cli\u003eSwitchgear, panel boards, and control cabinets\u003c\/li\u003e\n  \u003cli\u003eGrounding bars, lightning protection, and earthing systems\u003c\/li\u003e\n  \u003cli\u003eTransformer and motor components\u003c\/li\u003e\n  \u003cli\u003eCable lugs, terminals, and electrical connectors\u003c\/li\u003e\n  \u003cli\u003eWelding electrodes, contact tips, and current-carrying arms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial \u0026amp; Manufacturing\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat exchanger and thermal management components\u003c\/li\u003e\n  \u003cli\u003eInduction heating coils and conductors\u003c\/li\u003e\n  \u003cli\u003eHydraulic fittings, fasteners, nuts, and bolts\u003c\/li\u003e\n  \u003cli\u003eGaskets, seals, valve parts, and bushings\u003c\/li\u003e\n  \u003cli\u003eAnodes for plating and electroplating lines\u003c\/li\u003e\n  \u003cli\u003eTooling, die components, and fixturing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConstruction \u0026amp; Architecture\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRoofing accessories and flashing details\u003c\/li\u003e\n  \u003cli\u003eDecorative trim, edging, and door\/window hardware\u003c\/li\u003e\n  \u003cli\u003eLightning protection and structural grounding\u003c\/li\u003e\n  \u003cli\u003ePlumbing fittings and connectors\u003c\/li\u003e\n  \u003cli\u003eRestoration and heritage building work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCrafts, Jewelry \u0026amp; Hobby\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eJewelry making, rings, bangles, and findings\u003c\/li\u003e\n  \u003cli\u003eKnife handles, pins, and bolster material\u003c\/li\u003e\n  \u003cli\u003eSculpture, metal art, and model engineering\u003c\/li\u003e\n  \u003cli\u003eWoodworking inlay and turning projects\u003c\/li\u003e\n  \u003cli\u003eDIY, maker, and workshop projects\u003c\/li\u003e\n  \u003cli\u003eDistilling, brewing, and custom equipment builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eForms, Sizes \u0026amp; Finishes\u003c\/h2\u003e\n\u003cp\u003eWe stock \u003cstrong\u003epure copper bar\u003c\/strong\u003e in multiple cross-sections and diameters to cover the widest possible range of applications. Use the guide below to select the right form of \u003cstrong\u003ecopper rod stock\u003c\/strong\u003e for your project.\u003c\/p\u003e\n\n\u003ch3\u003eSolid Copper Round Bar (Copper Rod)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePure copper round bar\u003c\/strong\u003e is our most versatile product, suitable for machining, fabrication, electrical work, and craft use.\u003c\/p\u003e\n\n\u003ch4\u003eDiameter Range\u003c\/h4\u003e\n\n\u003ch5\u003eSmall Diameters\u003c\/h5\u003e\n\u003cp\u003eSmall-diameter pure copper rod is ideal for precision and light-duty work where a compact, high-conductivity material is needed.\u003c\/p\u003e\n\u003ch6\u003eTypical Applications\u003c\/h6\u003e\n\u003cp\u003eElectronics, connectors, fasteners, pins, jewelry making, model engineering, and small turned parts on CNC or automatic lathes.\u003c\/p\u003e\n\n\u003ch5\u003eMedium Diameters\u003c\/h5\u003e\n\u003cp\u003eMid-size copper round bar covers the majority of general engineering, maintenance, and fabrication requirements.\u003c\/p\u003e\n\u003ch6\u003eTypical Applications\u003c\/h6\u003e\n\u003cp\u003eBus conductors, grounding bars, shafts, fittings, structural supports, plumbing components, and general machine shop work.\u003c\/p\u003e\n\n\u003ch5\u003eLarge Diameters\u003c\/h5\u003e\n\u003cp\u003eLarge-diameter pure copper bar is supplied for heavy-duty applications that demand maximum current capacity or substantial forging stock.\u003c\/p\u003e\n\u003ch6\u003eTypical Applications\u003c\/h6\u003e\n\u003cp\u003eHeavy electrical conductors, transformer components, industrial bushings, forging billets, and large machined parts.\u003c\/p\u003e\n\n\u003ch4\u003eLengths\u003c\/h4\u003e\n\u003cp\u003eRound copper bar is supplied in standard straight lengths. Custom cutting is available so you receive exactly the lengths your project requires, reducing scrap and secondary cutting in your shop.\u003c\/p\u003e\n\n\u003ch3\u003eCopper Flat Bar \/ Copper Bus Bar\u003c\/h3\u003e\n\u003cp\u003eFlat copper bar is stocked in a range of widths and thicknesses. It is the standard choice for electrical bus work, \u003cstrong\u003ecopper grounding bar\u003c\/strong\u003e installations, panel building, and architectural uses where a flat conductor is specified.\u003c\/p\u003e\n\n\u003ch3\u003eCopper Square Bar\u003c\/h3\u003e\n\u003cp\u003eSquare pure copper bar is available in common square dimensions for decorative and mechanical applications requiring sharp, uniform edges and a solid, substantial feel.\u003c\/p\u003e\n\n\u003ch3\u003eCopper Hexagonal Bar\u003c\/h3\u003e\n\u003cp\u003eHexagonal pure copper rod is stocked for turned parts, nuts, bolts, fittings, and CNC machining operations where a hex profile simplifies gripping and secondary operations.\u003c\/p\u003e\n\n\u003ch3\u003eSurface Finish\u003c\/h3\u003e\n\u003cp\u003eAll \u003cstrong\u003epure copper bar\u003c\/strong\u003e is supplied with a smooth, clean mill finish suitable for immediate fabrication, plating, soldering, or polishing. The natural copper surface can be left to develop a patina, or polished and lacquered for a lasting bright finish.\u003c\/p\u003e\n\n\u003cdiv class=\"rk-note\"\u003e\n  \u003cstrong\u003eTip:\u003c\/strong\u003e If your project calls for a specific diameter, length, or cross-section that you do not see listed, select the closest available option and note your requirements at checkout. We regularly cut \u003cstrong\u003esolid copper rod\u003c\/strong\u003e to custom sizes.\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy Buy Pure Copper Bar from RapidKeen?\u003c\/h2\u003e\n\n\u003cdiv class=\"rk-grid rk-g2\"\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eConsistent, Reliable Quality\u003c\/h3\u003e\n    \u003cp\u003eEvery bar is produced to consistent composition and properties, so you receive dependable \u003cstrong\u003epure copper bar\u003c\/strong\u003e from order to order — no surprises in conductivity, workability, or finish.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eWide Selection in One Place\u003c\/h3\u003e\n    \u003cp\u003eSource round, flat bus bar, square, and hexagonal \u003cstrong\u003ecopper bar stock\u003c\/strong\u003e together, reducing the number of suppliers and shipments you need to manage.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eCustom Cutting Available\u003c\/h3\u003e\n    \u003cp\u003eOrder the exact lengths you need and reduce scrap, handling time, and secondary operations in your shop. Custom-cut \u003cstrong\u003ecopper rod\u003c\/strong\u003e arrives ready to use.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"rk-card\"\u003e\n    \u003ch3\u003eFast, Dependable Fulfillment\u003c\/h3\u003e\n    \u003cp\u003eStocked products ship quickly from US-based fulfillment, helping you keep production schedules and project timelines on track.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003ePure Copper Bar FAQ\u003c\/h2\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eWhat is the difference between pure copper bar and brass bar?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003e\u003cstrong\u003ePure copper bar\u003c\/strong\u003e is made from commercially pure 99.9% copper with no significant alloying additions, giving it the characteristic reddish color and maximum electrical and thermal conductivity. Brass bar is an alloy of copper and zinc, appearing more yellow, with higher machinability and strength but substantially lower conductivity. If your application requires high conductivity, corrosion resistance, or the natural properties of copper, choose pure copper bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eIs pure copper bar the same as copper rod?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003eIn most industrial usage, “copper bar” and “copper rod” refer to the same solid wrought product. “Bar” generally describes straight lengths in various cross-sections, while “rod” commonly refers to round bar or coiled wire rod. Our \u003cstrong\u003epure copper bar\u003c\/strong\u003e and \u003cstrong\u003epure copper rod\u003c\/strong\u003e listings describe the same high-quality solid material.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eCan pure copper bar be welded, soldered, and brazed?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003eYes. Pure copper has excellent joining characteristics. It can be readily soldered, brazed, and welded using TIG welding, MIG welding, and brazing with appropriate filler metals and shielding. Because copper conducts heat so efficiently, more heat input is generally required compared to welding steel.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eDoes pure copper bar tarnish or turn green?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003ePure copper naturally darkens to a deep brown and, with prolonged outdoor exposure, may develop a green patina (verdigris). This layer is protective and does not weaken the metal. If a bright finish is preferred, the bar can be polished and sealed with a clear lacquer or wax.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eCan I cut and machine pure copper bar in my own shop?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003eAbsolutely. \u003cstrong\u003eSolid copper bar\u003c\/strong\u003e machines well with sharp high-speed steel or carbide tooling and can be cut with band saws, horizontal cut-off saws, and abrasive saws. Using lubricant and appropriate speeds and feeds helps achieve clean cuts and extends tool life.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eWhat is pure copper bar commonly used for?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003e\u003cstrong\u003ePure copper bar\u003c\/strong\u003e is used across electrical, industrial, construction, and craft applications. Typical uses include bus bars, grounding bars, electrical connectors, heat exchanger parts, fasteners, decorative hardware, jewelry, and custom machined components.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"rk-faq\"\u003e\n  \u003ch4\u003eWhich form of copper bar should I choose for electrical grounding?\u003c\/h4\u003e\n  \u003ch5\u003eAnswer\u003c\/h5\u003e\n  \u003cp\u003eFor grounding and earthing systems, \u003cstrong\u003ecopper flat bar\u003c\/strong\u003e (copper bus bar) is the most common choice due to its large surface area and easy mounting. Solid copper round bar is also widely used for grounding electrodes and conductors. Both forms offer the high conductivity and corrosion resistance that grounding applications demand.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"text-align:center;color:var(--m);font-size:14px;margin-top:30px;padding-top:20px;border-top:1px solid var(--bd)\"\u003eRapidKeen — Pure Copper Bar, Solid Copper Rod \u0026amp; Copper Bus Bar Stock\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the difference between pure copper bar and brass bar?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pure copper bar is made from commercially pure 99.9% copper with no significant alloying additions, giving it a reddish color and maximum electrical and thermal conductivity. Brass bar is a copper-zinc alloy that is more yellow, stronger, and less conductive. Choose pure copper bar for high conductivity and natural copper properties.\"}},{\"@type\":\"Question\",\"name\":\"Is pure copper bar the same as copper rod?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"In most industrial usage, copper bar and copper rod refer to the same solid wrought product. Bar generally describes straight lengths in various cross-sections, while rod commonly refers to round bar or coiled wire rod.\"}},{\"@type\":\"Question\",\"name\":\"Can pure copper bar be welded, soldered, and brazed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Pure copper can be readily soldered, brazed, and welded using TIG, MIG, and brazing with appropriate filler metals. Because copper conducts heat efficiently, more heat input is generally required than for steel.\"}},{\"@type\":\"Question\",\"name\":\"Does pure copper bar tarnish or turn green?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pure copper naturally darkens and may develop a green patina with prolonged outdoor exposure. This patina is protective and does not weaken the metal. A bright finish can be maintained by polishing and sealing with lacquer or wax.\"}},{\"@type\":\"Question\",\"name\":\"Can I cut and machine pure copper bar in my own shop?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Solid copper bar machines well with sharp HSS or carbide tooling and can be cut with band saws, cut-off saws, and abrasive saws. Use lubricant and appropriate speeds and feeds for best results.\"}},{\"@type\":\"Question\",\"name\":\"What is pure copper bar commonly used for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pure copper bar is used for bus bars, grounding bars, electrical connectors, heat exchanger parts, fasteners, decorative hardware, jewelry, and custom machined components across electrical, industrial, construction, and craft applications.\"}},{\"@type\":\"Question\",\"name\":\"Which form of copper bar should I choose for electrical grounding?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Copper flat bar (bus bar) is most common for grounding due to its large surface area and easy mounting. Solid copper round bar is also widely used for grounding electrodes and conductors.\"}}]}\n\u003c\/script\u003e\n\u003c\/div\u003e\n","brand":"RapidKeen","offers":[{"title":"2mm（0.079\"） \/ 300mm (11.811\")","offer_id":43553338392635,"sku":null,"price":2.19,"currency_code":"USD","in_stock":true},{"title":"2mm（0.079\"） \/ 500mm (19.685\")","offer_id":43553338425403,"sku":null,"price":3.65,"currency_code":"USD","in_stock":true},{"title":"3mm (0.118\") \/ 300mm (11.811\")","offer_id":43553338523707,"sku":null,"price":2.76,"currency_code":"USD","in_stock":true},{"title":"3mm (0.118\") \/ 500mm (19.685\")","offer_id":43553338556475,"sku":null,"price":4.6,"currency_code":"USD","in_stock":true},{"title":"4mm (0.158\") \/ 300mm (11.811\")","offer_id":43553338654779,"sku":null,"price":3.12,"currency_code":"USD","in_stock":true},{"title":"4mm (0.158\") \/ 500mm (19.685\")","offer_id":43553338687547,"sku":null,"price":5.2,"currency_code":"USD","in_stock":true},{"title":"5mm (0.197\") \/ 300mm 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