Luois Metals stands out as a top-notch manufacturer and supplier of **Copper Round Bars**, proudly based in Houston, USA. We provide high-quality copper bars that are celebrated for their outstanding electrical and thermal conductivity, impressive resistance to corrosion, and superb workability. These round bars are perfect for a variety of applications in electrical, architectural, and industrial fields where performance and durability are key. At Luois Metals, we offer copper round bars in a diverse selection of diameters, tempers, and finishes, tailored to meet the unique demands of industries like electrical engineering, construction, automotive, and beyond.
When it comes to composition, **Copper Round Bars** are generally made from high-purity copper (99.9% or higher), with popular grades such as Electrolytic Tough Pitch (ETP, C11000) and Oxygen-Free High Conductivity (OFHC, C10200) copper. These bars are known for their excellent conductivity, making them a go-to choice for electrical bus bars, grounding rods, and transformer components. They also boast remarkable corrosion resistance across various environments, along with great formability, machinability, and weldability. Plus, copper’s natural antimicrobial properties enhance its appeal for hygienic and architectural uses.
| Grade | Copper – UNS C12200 |
|---|---|
| Specification | ASTM B62 UNS C12200 |
| 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 |
| LENGTHS | 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 | |
|
Standard |
Copper NO. |
Chemical Composition |
|
|
CU% |
P% |
||
|
ASTM
B280/62 |
C12200 |
>99.9 |
0.015 to 0.040 |
|
Mechanical Properties |
|||
|
Temper |
Tensile strength (Mpa) |
Elongation (%) |
Average Grain Size (mm) |
|
>60 |
>205 |
>40 |
>0.040 |
|
>50 |
>245 |
||
|
BS EN NUMBER |
TITLE |
NEAREST OLD BS EQUIVALENT |
|---|---|---|
|
Unwrought Products |
||
|
1976 |
Cast unwrought copper products |
6017 |
|
1977 |
Copper drawing stock (wire rod) |
6926 |
|
1978 |
Copper cathods |
6017 |
|
1981 |
Master Alloys |
– |
|
1982 |
Ingots and castings |
1400 |
|
Copper Rod / Bar, Wire, Profiles |
||
|
12163 |
Rod for general purposes |
2874 |
|
12164 |
Rod for free machining purposes |
2874 |
|
12165 |
Wrought and unwrought forging stock |
2872 |
|
12167 |
Profiles and rectangular bar for general purposes |
2874 |
|
12168 |
Hollow rod for free machining purposes |
– |
|
13347 |
Rod and wire for welding and braze welding |
1453, 1845, 2901 |
|
Copper Electrical Purposes |
||
|
13601 |
Copper rod, bar and wire general electrical purposes |
1433, 1432, 4109 |
|
13605 |
Copper profiles for electrical purposes |
|
Copper Ann- Round * CG – Centerless Ground | 3/16 CG Copper Bar 1/4 CG Copper Bar 5/16 CG Copper Bar 3/8 CG Copper Bar 1/2 CG Copper Bar 5/8 CG Copper Bar 3/4 CG Copper Bar 13/16 CG Copper Bar 7/8 CG Copper Bar 1 CG Copper Bar 1-1/8 CG Copper Bar 1-1/4 CG Copper Bar 1-3/8 CG Copper Bar 1-1/2 CG Copper Bar 1-3/4 CG Copper Bar | 2 CG Copper Bar 2-1/4 CG Copper Bar 2-1/2 CG Copper Bar 2-3/4 CG Copper Bar 3 CG Copper Bar 3-1/4 CG Copper Bar 3-1/2 CG Copper Bar 4 HR RT Copper Bar 4-1/2 HR RT Copper Bar 5 HR RT Copper Bar 6 HR RT Copper Bar 7 HR RT Copper Bar 8 HR RT Copper Bar 9 HR RT Copper Bar 10 HR RT Copper Bar |
Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
|---|---|---|---|
Cold Drawn and Polish | 3.00 – 75.00 | 1/8” – 3.00” | h8-h9-h10-h11, ASTM B62 |
Cold Drawn and Ground | 10.00 – 75.00 | 5/6” – 2.50” | h8-h9-h10-h11 |
Peeled and Polished | 40.00 – 150.00 | 1.50” – 6.00” | h11, ASTMA-484 h11-DIN 1013 |
Peeled and Ground | 20.00 – 50.00 | 3/4″ – 2.00” | h9-h10-h11, ASTM B62 |
|
Round Bar |
||||||||
|---|---|---|---|---|---|---|---|---|
|
Size |
Kgs / Foot |
Kgs / Mtr |
Size |
Kgs / Foot |
Kgs / Mtr |
Size |
Kgs / Foot |
Kgs / Mtr |
|
3mm |
0.017 |
0.055 |
20mm |
0.753 |
2.470 |
3″ |
10.900 |
35.762 |
|
1/8″ |
0.019 |
0.062 |
22mm |
0.908 |
2.979 |
3-1/4″ |
12.800 |
41.996 |
|
5/32″ |
0.029 |
0.095 |
7/8″ |
0.926 |
3.038 |
3-1/2″ |
14.850 |
48.772 |
|
4mm |
0.030 |
0.098 |
24mm |
1.080 |
3.543 |
3-3/4″ |
17.001 |
55.780 |
|
3/16″ |
0.043 |
0.141 |
25mm |
1.180 |
3.871 |
4″ |
19.306 |
63.340 |
|
5mm |
0.047 |
0.154 |
1″ |
1.210 |
3.970 |
4-1/4″ |
21.908 |
72.249 |
|
7/32″ |
0.058 |
0.190 |
26mm |
1.271 |
4.170 |
4-1/2″ |
24.4487 |
80.340 |
|
6mm |
0.068 |
0.223 |
27mm |
1.368 |
4.490 |
4-3/4″ |
27.366 |
90.249 |
|
1/4″ |
0.076 |
0.249 |
1-1/8″ |
1.534 |
5.033 |
5″ |
30.461 |
99.940 |
|
7mm |
0.091 |
0.298 |
30mm |
1.691 |
5.548 |
5-1/2″ |
36.690 |
121.000 |
|
5/16″ |
0.118 |
0.387 |
1-1/4″ |
1.924 |
6.349 |
6″ |
43.860 |
143.900 |
|
8mm |
0.120 |
0.398 |
32mm |
1.894 |
6.314 |
6-1/2″ |
51.093 |
167.630 |
|
9mm |
0.152 |
0.498 |
1-3/8″ |
2.303 |
7.550 |
7″ |
59.432 |
196.000 |
|
3/8″ |
0.170 |
0.557 |
35mm |
2.390 |
7.553 |
7-1/2″ |
68.226 |
225.000 |
|
10mm |
0.189 |
0.620 |
36mm |
2.438 |
7.999 |
8″ |
77.586 |
254.55 |
|
11mm |
0.228 |
0.748 |
38mm |
2.792 |
8.903 |
10″ |
121.048 |
397.140 |
|
7/16″ |
0.232 |
0.761 |
1-1/2″ |
2.715 |
8.951 |
|||
|
12mm |
0.271 |
0.889 |
40mm |
3.009 |
9.872 |
|||
|
1/2″ |
0.303 |
0.994 |
1-5/8″ |
3.200 |
10.449 |
|||
|
13mm |
0.318 |
1.043 |
1-3/4″ |
3.712 |
12.179 |
|||
|
14mm |
0.368 |
1.207 |
45mm |
3.807 |
12.555 |
|||
|
9/16″ |
0.383 |
1.256 |
1-7/8″ |
4.260 |
13.977 |
|||
|
15mm |
0.424 |
1.391 |
48mm |
4.330 |
14.205 |
|||
|
5/8″ |
0.473 |
1.551 |
50mm |
4.698 |
15.414 |
|||
|
16mm |
0.481 |
1.578 |
2″ |
4.848 |
15.906 |
|||
|
17mm |
0.543 |
1.791 |
2-1/8″ |
5.475 |
17.963 |
|||
|
11/16″ |
0.573 |
1.880 |
2-1/4″ |
6.135 |
20.128 |
|||
|
18mm |
0.610 |
2.001 |
60mm |
6.768 |
22.205 |
|||
|
3/4″ |
0.682 |
2.237 |
2-3/8″ |
6.838 |
22.435 |
|||
|
2-1/2″ |
7.576 |
24.856 |
||||||
|
2-5/8″ |
8.354 |
27.409 |
||||||
|
2-3/4″ |
9.169 |
30.083 |
||||||
Copper Round Bars typically do not require corrosion protection coatings due to their inherent corrosion resistance, but coatings may be used in specific environments for added protection.
Yes, Copper Round Bars can be welded using appropriate techniques, such as TIG or MIG welding, with careful control of heat to prevent oxidation.
To choose the right Copper Round Bar, consider factors such as required strength, conductivity, corrosion resistance, and the specific application needs.
These round bars find their place in a wide array of applications, including electrical conductors, power distribution systems, plumbing components, heat exchangers, industrial machinery, and even decorative architectural features. Their adaptability and long-lasting performance make them ideal for both cutting-edge and traditional industries. Luois Metals provides **Copper Round Bars** in custom cut-to-size lengths, available in polished or mill finishes, and compliant with ASTM B187 and other relevant international standards, ensuring you receive consistent quality and timely delivery for all your copper material requirements.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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