Copper Round Bar

Starc Metals, based in Canberra, Australia, has made a name for itself as a top-notch manufacturer and supplier of high-quality Copper Round Bars that cater to a variety of industrial needs. These bars are crafted from premium-grade copper, ensuring they deliver outstanding conductivity, durability, and corrosion resistance. With state-of-the-art manufacturing facilities and rigorous quality control measures, Starc Metals offers Copper Round Bars in a range of sizes and specifications tailored to meet client demands. Their products are highly regarded across sectors like electrical, automotive, construction, and marine, known for their reliability, consistent performance, and precision-engineered finish.

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Copper Cold Drawn Bars

Copper Bright Rods

Copper Threaded Rods

What is Copper Round Bar?

Copper Round Bars are made primarily from high-purity copper (usually over 99.9%), which guarantees exceptional electrical and thermal conductivity. They boast impressive mechanical strength, ductility, and malleability, making them easy to machine and fabricate. These bars also show remarkable resistance to corrosion, particularly in marine and industrial settings. With tensile strength between 200–400 MPa and excellent elongation properties, Copper Round Bars maintain their structural integrity even under stress. Their well-balanced composition and mechanical characteristics make them perfect for high-performance electrical and mechanical applications.

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Copper Round Bar Specification

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	3mm20mm20mm~12mm100mm100mm
Copper Square bar size	4mm4mm~100mm100mm
Copper Flat bar size	Thickness: 2mm~100mm
Copper Flat bar size	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

Chemical Compositions of Copper Round Bar

Standard	Copper NO.	Chemical Composition
		CU%	P%
ASTM B280/62	C12200	>99.9	0.015 to 0.040

Copper Round Bar Mechanical Properties

Mechanical Properties
Temper	Tensile strength (Mpa)	Elongation (%)	Average Grain Size (mm)
>60	>205	>40	>0.040
>50	>245

Copper Round Bar Equivalent Grades

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

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Copper Round Bar Types

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Copper Round Bar Size Chart

Copper Ann- Round

* CG – Centerless Ground
HR RT – Hot Rolled Rough Turned

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

Copper Round Bar Weight Chart

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

Frequently Asked Questions (FAQ)

Do Copper Round Bar Require Corrosion Protection Coatings?

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.

Can Copper Round Bar Be Welded?

Yes, Copper Round Bars can be welded using appropriate techniques, such as TIG or MIG welding, with careful control of heat to prevent oxidation.

How Do I Choose The Right Copper Round Bar?

To choose the right Copper Round Bar, consider factors such as required strength, conductivity, corrosion resistance, and the specific application needs.

Copper Round Bar Uses

Thanks to their superior conductivity and strength, Copper Round Bars find extensive use across various industries. In the electrical field, they are commonly found in bus bars, transformers, switchgear, and connectors. In plumbing and construction, they serve as fittings, architectural features, and decorative elements. The automotive sector utilizes them in radiators and electrical components, while marine applications take advantage of their outstanding resistance to saltwater corrosion. Moreover, Copper Round Bars are ideal for producing fasteners, heat exchangers, and parts for industrial machinery, making them a versatile and essential material in engineering.

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