NACE Certified Copper Round Bar, ASTM B152 Copper 101 Round Bar, 20mm Diameter 150mm Copper Round Bar, Copper Cold Drawn Bar, Premium ETP Copper Round Bars.
Copper Round Bars are meticulously crafted cylindrical rods made from high-purity copper, known for their excellent electrical and thermal conductivity, as well as exceptional resistance to corrosion. These bars are produced through a precise manufacturing process, which includes melting premium copper, casting it into billets, and shaping it into round bars via extrusion or rolling. To enhance their mechanical properties and surface quality, additional steps such as annealing and finishing (like polishing or pickling) are applied. The resulting bars are prized for their consistent dimensions, smooth surface finish, and reliable performance, making them suitable for a wide variety of demanding applications.
The material used in copper round bars is typically 99.9% pure copper, such as Electrolytic Tough Pitch (ETP) or Oxygen-Free High Conductivity (OFHC) copper. These grades offer excellent conductivity and are chosen based on application requirements. The bars are available in a variety of diameters ranging from 6mm to over 200mm, and can be supplied in lengths up to 6 meters or as per customer specifications. Key technical properties include high tensile strength (200–400 MPa), elongation ranging from 20% to 45%, and exceptional electrical conductivity—up to 101% IACS (International Annealed Copper Standard). Available in soft, half-hard, and hard tempers, they provide versatility across industries.
Copper round bars are widely used in applications that require high electrical or thermal efficiency, as well as strength and corrosion resistance. Common uses include electrical bus bars, earthing systems, switchgear components, industrial machinery, transformers, connectors, and plumbing fittings. Due to their excellent performance in both indoor and outdoor environments, these bars are also suitable for marine, architectural, and heavy-duty electrical applications. Their ability to carry high current loads and withstand environmental stress makes them a preferred material across sectors.
Copper round bars offer a wide range of advantages that make them indispensable in modern industrial systems. They provide outstanding electrical conductivity for efficient power distribution, and excellent thermal conductivity for heat transfer applications. Their strong corrosion resistance ensures durability in harsh environments such as underground installations or coastal regions. These bars also offer high workability, making them easy to machine, bend, and join. With strong mechanical properties and full recyclability, copper round bars are both high-performing and environmentally sustainable, making them a smart and long-term material solution.
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Copper Round Bars Specifications
| Grade | Copper – C10100, C10200, C10300, C10400, C10500, C10700, C11000, C11300, C12000, C12200, C14300, C14420, C14530, C19210, C19400 |
|---|---|
| Specification | ASTM B62, ASTM B133, ASTM B124, ASTM B111, ASTM B152, ASTM F68, ASTM B301, ASTM B187 |
| Standard | ASTM, ASME, API, GB, AISI, DIN, EN, SUS, UNS, ASTM B62 / ASME SB62 |
| Copper Round bar size | Diameter: 3mm~800mm |
| Copper Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Copper Square bar size | 4mm*4mm~100mm*100mm |
| Copper Flat bar size | Thickness: 2mm~100mm |
| Width: 10mm~500mm | |
| Copper Hex Bar size | 2mm~100mm |
| Copper Billet Size | 1/2″ to 495mm Diameter |
| Copper Rectangles Size | 33mm x 30mm to 295mm x 1066mm |
| Length | 12 RANDOM LENGTHS AND LONG BARS:15 20 RANDOM LENGTHS |
| Finish | Bright, Polish, Bright, Rough Turned, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline |
| Condition | Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished, Annealed round bar |
| Technique | Copper Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod |
| Form | Round, Rod, Precision Ground Bar, Square, Round Rod, Hollow, Hex (A/F), Triangle, Rectangle, Threaded, T-Bar, Half Round Bar, Flat Bar, Rings, Blocks, Billet, Ingot, I/H Bar, Angle, Channel Bar, Profiles, Forging Etc. |
| Our Copper round bar conforms to NACE MR0175/ISO 15156 | |
Types of Copper Round Bars
Hot Rolled Round Bars
Manufactured by hot rolling, offering excellent strength and durability.
Cold Drawn Round Bars
Precision-made with a smooth surface finish, ideal for machining.
Peeled & Polished Round Bars
Enhanced surface finish with high dimensional accuracy
Centerless Ground Round Bars
Extremely precise tolerance with a fine, smooth surface.
Forged Round Bars
High-strength bars for heavy-duty industrial applications.
Bright Round Bars
High-quality, smooth surface bars used in precision applications.
Black Round Bars
Raw, unfinished bars used in industrial applications requiring further processing.
Equivalent of Copper Round Bars
| Grade Name | UNS Number | ASTM | EN / DIN | BS | JIS | ISO |
|---|---|---|---|---|---|---|
| ETP Copper (Electrolytic Tough Pitch) | C11000 | ASTM B187 | Cu-ETP / CW004A | C101 | C1100 | Cu-ETP |
| DHP Copper (Deoxidized High Phosphorus) | C12200 | ASTM B152 | Cu-DHP / CW024A | C106 | C1220 | Cu-DHP |
| Commercial Copper | C12000 | ASTM B152 | CuZn0 / CW008A | C103 | C1201 | CuZn0 |
| Tellurium Copper | C14500 | ASTM B301 | CuTeP / CW118C | C109 | C1450 | CuTe |
| Beryllium Copper | C17200 | ASTM B196 | CuBe2 / CW101C | CN102 | C1720 | CuBe2 |
Chemical Composition of Pure Copper Round Bars
| Grade | UNS | Copper (Cu) | Phosphorus (P) | Tellurium (Te) | Beryllium (Be) | Other Elements |
|---|---|---|---|---|---|---|
| ETP Copper | C11000 | ≥ 99.90% | ≤ 0.04% | — | — | None |
| DHP Copper | C12200 | ≥ 99.90% | 0.015% – 0.040% | — | — | None |
| Tellurium Copper | C14500 | ≥ 99.90% | — | 0.40% – 0.70% | — | None |
| Beryllium Copper | C17200 | 96.0% – 98.0% | — | — | 1.80% – 2.00% | Co, Ni (trace) |
| Commercial Copper | C12000 | ≥ 99.90% | 0.004% – 0.040% | — | — | None |
Mechanical Properties of ETP Copper Round Bars
| Aluminum Grade | Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (Brinell HB) |
|---|---|---|---|---|---|
| 1060 | O | 60–95 | 25–30 | 25–35 | 20 |
| 1100 | H14 | 110–150 | 95–125 | 5–10 | 35 |
| 2011 | T3 | 340–390 | 275–345 | 10–15 | 95 |
| 2024 | T4 | 470 | 325 | 20 | 120 |
| 5052 | H32 | 210–260 | 130–195 | 12–20 | 65 |
| 6061 | T6 | 310–350 | 270–310 | 10–17 | 95 |
| 6082 | T6 | 310–340 | 260–300 | 8–12 | 95 |
| 7075 | T6 | 510–570 | 430–480 | 7–11 | 150 |
Sizes Chart of Copper Round Bars
| Diameter (mm) | Length (mm) | Tolerance | Weight (kg/m) | Standard Available |
|---|---|---|---|---|
| 6 | 1000 – 6000 | ±0.1 | 0.25 | ASTM B187 / B133 |
| 8 | 1000 – 6000 | ±0.1 | 0.45 | ASTM B187 / B133 |
| 10 | 1000 – 6000 | ±0.15 | 0.70 | ASTM B187 / B133 |
| 12 | 1000 – 6000 | ±0.15 | 1.01 | ASTM B187 / B133 |
| 16 | 1000 – 6000 | ±0.2 | 1.80 | ASTM B187 / B133 |
| 20 | 1000 – 6000 | ±0.25 | 2.80 | ASTM B187 / B133 |
| 25 | 1000 – 6000 | ±0.25 | 4.38 | ASTM B187 / B133 |
| 32 | 1000 – 6000 | ±0.3 | 7.17 | ASTM B187 / B133 |
| 40 | 1000 – 6000 | ±0.35 | 11.20 | ASTM B187 / B133 |
| 50 | 1000 – 6000 | ±0.4 | 17.50 | ASTM B187 / B133 |
OFHC Copper Round Bar Weight Per Foot
| Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
|---|---|---|---|---|---|---|---|---|
| 3mm | 0.017 | 0.055 | 3″ | 10.900 | 35.762 | 20mm | 0.753 | 2.470 |
| 5/32″ | 0.029 | 0.095 | 3-1/2″ | 14.850 | 48.772 | 7/8″ | 0.926 | 3.038 |
| 4mm | 0.030 | 0.098 | 3-3/4″ | 17.001 | 55.780 | 24mm | 1.080 | 3.543 |
| 1/8″ | 0.019 | 0.062 | 3-1/4″ | 12.800 | 41.996 | 22mm | 0.908 | 2.979 |
| 3/16″ | 0.043 | 0.141 | 4″ | 19.306 | 63.340 | 25mm | 1.180 | 3.871 |
| 6mm | 0.068 | 0.223 | 4-3/4″ | 27.366 | 90.249 | 27mm | 1.368 | 4.490 |
| 1/4″ | 0.076 | 0.249 | 5″ | 30.461 | 99.940 | 1-1/8″ | 1.534 | 5.033 |
| 5mm | 0.047 | 0.154 | 4-1/4″ | 21.908 | 72.249 | 1″ | 1.210 | 3.970 |
| 12mm | 0.271 | 0.889 | 40mm | 3.009 | 9.872 | |||
| 7/32″ | 0.058 | 0.190 | 4-1/2″ | 24.4487 | 80.340 | 26mm | 1.271 | 4.170 |
| 7mm | 0.091 | 0.298 | 5-1/2″ | 36.690 | 121.000 | 30mm | 1.691 | 5.548 |
| 9mm | 0.152 | 0.498 | 7″ | 59.432 | 196.000 | 1-3/8″ | 2.303 | 7.550 |
| 10mm | 0.189 | 0.620 | 8″ | 77.586 | 254.55 | 36mm | 2.438 | 7.999 |
| 1/2″ | 0.303 | 0.994 | 1-5/8″ | 3.200 | 10.449 | |||
| 11mm | 0.228 | 0.748 | 10″ | 121.048 | 397.140 | 38mm | 2.792 | 8.903 |
| 7/16″ | 0.232 | 0.761 | 1-1/2″ | 2.715 | 8.951 | |||
| 3/8″ | 0.170 | 0.557 | 7-1/2″ | 68.226 | 225.000 | 35mm | 2.390 | 7.553 |
| 5/16″ | 0.118 | 0.387 | 6″ | 43.860 | 143.900 | 1-1/4″ | 1.924 | 6.349 |
| 8mm | 0.120 | 0.398 | 6-1/2″ | 51.093 | 167.630 | 32mm | 1.894 | 6.314 |
| 13mm | 0.318 | 1.043 | 1-3/4″ | 3.712 | 12.179 |
Worldwide Supply of Copper Round Bars
Russia, Bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Palestine, Qatar, Saudi Arabia, Syria, Turkey, United Arab Emirates (UAE), Yemen, United States of America (USA), Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom, Vatican City.
