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Round and square copper bars

Copper bar for electrical and general applications with different alloys and supply options: square bar and round bar – including diameters from Ø 3 to Ø 300 mm.

Supply formats:

Round
Square

Medidas: From 3 to 300 mm Ø.

Data sheet: Round and square copper bars

At Bronmetal we specialise in the supply of non-ferrous metals for use in industry and copper bar is one of them. In our catalogue you will find different compositions and alloys in three formats: round bar, square bar or rectangular bar. In addition, there is also the possibility of supplying bevelled copper bar.

The specifications in terms of composition and mechanical characteristics are detailed in the section of the product data sheet according to the corresponding type of alloy. Among them, two alloys stand out for being composed of high purity copper and significant electrical conductivity: Cu-OFE and Cu-PHCE. These two alloys are subject to the EN 13601 Standard which establishes the requirements for copper products for electrical applications.

To determine the conductivity of the material, the copper bars are subjected to the electrical properties test at 20°C in such a way that the volume resistivity, mass resistivity and conductivity are determined. In addition, the ampacity according to DIN 43671 determines the alternating and direct currents depending on the size of the copper bar.

If you have any questions, do not hesitate to contact our team of experts who will help you with everything you need.

Material Designation		Composition in % (m/m)
Material Designation		Element	Cu	Ag	Bi	O	P	Pb	Other elements (see note)
Symbolic	Numerical								Other elements (see note)
Symbolic	Numerical								Total	excluded
Cu-ETP	CW004A	min.	99.90^a	-	-	-	-	-	-	Ag, O
Cu-ETP	CW004A	max.	-	-	0,0005	0.040^b	-	0,005	0,03	Ag, O
Cu-FRHC	CW005A	min.	99.90^a	-	-	-	-	-	-	Ag, O
Cu-FRHC	CW005A	max.	-	-	-	0.040^b	-	-	0,06	Ag, O
Cu-OF	CW008A	min.	99.95^a	-	-	-	-	-	-	Ag
Cu-OF	CW008A	max.	-	-	0,0005	-^c	-	0,005	0,03	Ag
CuAg0,04	CW011A	min.	Rest	0,03	-	-	-	-	-	Ag, O
CuAg0,04	CW011A	max.	-	0,05	0,0005	0,040	-	-	0,03	Ag, O
CuAg0,07	CW012A	min.	Rest	0,06	-	-	-	-	-	Ag, O
CuAg0,07	CW012A	max.	-	0,08	0,0005	0,040	-	-	0,03	Ag, O
CuAg0,10	CW013A	min.	Rest	0,08	-	-	-	-	-	Ag, O
CuAg0,10	CW013A	max.	-	0,12	0,0005	0,040	-	-	0,03	Ag, O
CuAg0,04P	CW014A	min.	Rest	0,03	-	-	0,001	-	-	Ag, P
CuAg0,04P	CW014A	max.	-	0,05	0,0005	-^c	0,007	-	0,03	Ag, P
CuAg0,07P	CW015A	min.	Rest	0,06	-	-	0,001	-	-	Ag, P
CuAg0,07P	CW015A	max.	-	0,08	0,0005	-^c	0,007	-	0,03	Ag, P
CuAg0,10P	CW016A	min.	Rest	0,08	-	-	0,001	-	-	Ag, P
CuAg0,10P	CW016A	max.	-	0,12	0,0005	-^c	0,007	-	0,03	Ag, P
CuAg0,04(OF)	CW017A	min.	Rest	0,03	-	-	-	-	-	Ag, O
CuAg0,04(OF)	CW017A	max.	-	0,05	0,0005	-^c	-	-	0,0065	Ag, O
CuAg0,07(OF)	CW018A	min.	Rest	0,06	-	-	-	-	-	Ag, O
CuAg0,07(OF)	CW018A	max.	-	0,08	0,0005	-^c	-	-	0,0065	Ag, O
CuAg0,10(OF)	CW019A	min.	Rest	0,08	-	-	-	-	-	Ag, O
CuAg0,10(OF)	CW019A	max.	-	0,12	0,0005	-^c	-	-	0,0065	Ag, O
Cu-PHC	CW020A	min.	99.95^a	-	-	-	0,001	-	-	Ag, P
Cu-PHC	CW020A	max.	-	-	0,0005	-^c	0,006	0,005	0,03	Ag, P
Cu-HCP	CW021A	min.	99.95^a	-	-	-	0,002	-	-	Ag, P
Cu-HCP	CW021A	max.	-	-	0,0005	-^c	0,007	0,005	0,03	Ag, P
NOTE - The total of other elements ( different from copper) is defined as the sum of Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P , Pb, S, Sb, Se, Si, Sn, Te and Zn, with the exclusion of any of the elements whose value is indicated individually.
^a Including silver (Ag), up to a maximum of 0.015%
^b Up to 0.060% of oxygen content is permitted, subject to an agreement between client and supplier.
^c Oxygen content must be such that the material complies with the requisites for embrittlement by heating in a hydrogen atmosphere as in Norm En 1976.

ALEACIONES. COMPOSICIÓN DEL Cu-OFE y Cu-PHCE según EN 13601

Material Designation		Element	Composition in % (mass fraction)
Symbolic	Numerical	Element	Cu	Ag	As	Bi	Cd	Fe	Mn	Ni	O	P	Pb	S	Sb	Se	Sn	Te	Zn
Cu-OFE	CW009A	min.	99,99	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Cu-OFE	CW009A	max.	-	0,002 5	0,000 5	0,000 20	0,000 1	0,0001 0	0,000 5	0,000 1	_^a	0,000 3	0,000 5	0,001 5	0,000 4	0,000 20	0,000 2	0,000 20	0,000 1
Cu-PHCE	CW022A	min.	99,99	-	-	-	-	-	-	-	-	0,001	-	-	-	-	-	-	-
Cu-PHCE	CW022A	max.	-	0,002 5	0,000 5	0,000 20	0,000 1	0,0001 0	0,000 5	0,000 1	_^a	0,006	0,000 5	0,001 5	0,000 4	0,000 20	0,000 2	0,000 20	0,000 1
^a The oxygen content must be such that the material fulfills requirements of fragilization by heating in a hydrogen atmophere, of the Norm in 1976.

ELECTRICAL PROPERTIES ( AT 20ºC)

Designations				Volumen Resistivity	Resistivity mass^a	Conductivity
Material		Metallurgical State		Volumen Resistivity	Resistivity mass^a	Conductivity
Material				Ω x mm² m	Ω x g m²	MS/m	% IACS^b
Symbolic	Numerical			Ω x mm² m	Ω x g m²	MS/m	% IACS^b
Symbolic	Numerical			max.	max.	min.	min.
Cu-OFE Cu-PHCE	CW009A CW022A	Annealed		0,01707	0,1517	58,6	101
		Annealed		0,01724	0,1533	58	100
		Non annealed		In accordance
Cu-ETP Cu-FRHC Cu-OF CuAg0,04 CuAg0,07 CuAg0,10 CuAg0,04(OF) CuAg0,07(OF) CuAg0,10(OF) Cu-PHC	CW004A CW005A CW008A CW011A CW012A CW013A CW017A CW018A CW019A CW020A	D		0,01786	0,1588	56	96,6
		H035	R200	0,01724	0,1533	58	100
		H065	R250
		H065	R230
		H085	R300	0,01754	0,1559	57	98,3
		H085	R280
		H075	R260
		H100	R350	0,01786	0,1588	56	96,6
CuAg0,04P CuAg0,07P CuAg0,10P Cu-HCP	CW014A CW015A CW016A CW021A	D		0,01818	0,1616	55	94,8
		H035	R200	0,01754	0,1559	57	98,3
		H065	R250
		H065	R230
		H085	R300	0,01786	0,1588	56	96,6
		H085	R280
		H075	R260
		H100	R350	0,01818	0,1616	55	94,8
NOTE 1 - The IACS % values are calculated as percentages of the normalized value of high conductivity annealed copper, according to those established by the International Electrotechnical Commission. Copper whose volume resistivity is of 0,017 24 Ω x m, at 20ºC, is defined as that corresponding to a conductivity of 100%.
NOTE 2 - 1 MS/m is equivalent to 1 m/(Ω x mm²).
^a Calculated with a copper density of 8.89 g/cm³.
^b IACS: International Annealed Copper Standard.

PERMISSIBLE CURRENT. DIN 43671

Room temperature: 35°C • Final temperature of bars: 65°C • Conductivity 56 M/Ωmm² (r-0.0178 Ωmm²/m)

Width x Thickness	Alternating current up to 60 Hz								Corriente continua y alterna 16 2/3 Hz								Static characteristics
	Painted				Polished				Painted				Polished
	No. Bar				No. Bar				No. Bar				No. Bar
	1	2	3	4	1	2	3	4	1	2	3	4	1	2	3	4	Jx	Wx	Ix	Jx	Wx	Ix
	I	II	III	II II	I	II	III	II II	I	II	III	IIII	I	II	III	IIII	cm⁴	cm³	cm	cm⁴	cm³	cm
12 x 2	123	202	228		108	182	216		123	202	233		108	182	220		0,0288	0,0480	0,3460	0,0008	0,0080	0,0577
15 x 2	148	240	261		128	212	247		148	240	267		128	212	252		0,0563	0,0750	0,4330	0,0010	0,0100	0,0577
15 x 3	187	316	381		162	282	361		187	316	387		162	282	365		0,0844	0,1130	0,4330	0,0034	0,0225	0,0866
20 x 2	189	302	313		162	264	298		189	302	321		162	266	303		0,133	0,133	0,577	0,0013	0,0133	0,0577
20 x 3	237	394	454		204	348	431		237	394	463		204	348	437		0,200	0,200	0,577	0,0045	0,0300	0,0866
20 x 5	319	560	728		274	500	690		320	562	729		274	502	687		0,333	0,333	0,577	0,0208	0,0833	0,1440
20 x 10	497	924	1320		427	825	1180		499	932	1300		428	832	1210		0,667	0,667	0,577	0,1670	0,3330	0,2890
25 x 3	287	470	525		245	412	498		287	470	536		245	414	506		0,391	0,313	0,722	0,0056	0,0375	0,0866
25 x 5	384	662	869		327	586	795		384	664	841		327	590	794		0,651	0,521	0,722	0,0260	0,1040	0,1440
30 x 3	337	544	593		285	476	564		337	546	608		286	478	575		0,675	0,450	0,866	0,0068	0,0450	0,0866
30 x 5	447	760	944		379	672	896		448	766	950		380	676	897		1,130	0,750	0,866	0,0313	0,1250	0,1440
30 x 10	676	1200	1670		573	1060	1480		683	1230	1630		579	1080	1520		2,250	1,500	0,866	0,2500	0,5000	0,2890
40 x 3	435	692	725		366	600	690		436	696	748		367	604	708		1,60	0,80	1,15	0,0090	0,0600	0,0866
40 x 5	573	952	1140		482	836	1090		576	966	1160		484	848	1100		2,67	1,33	1,15	0,0417	0,1670	0,1440
40 x 10	850	1470	2000	2580	715	1290	1770	2280	865	1530	2000		728	1350	1880		5,33	2,67	1,15	0,3330	0,6670	0,2890
50 x 5	697	1140	1330	2010	583	994	1260	1920	703	1170	1370		588	1020	1300		5,21	2,08	1,44	0,0521	0,208	0,144
50 x 10	1020	1720	2320	2950	852	1510	2040	2600	1050	1830	2360		875	1610	2220		10,40	4,17	1,44	0,4170	0,833	0,289
60 x 5	826	1330	1510	2310	688	1150	1440	2210	836	1370	1580	2060	696	1190	1500	1970	9,00	3,00	1,73	0,0625	0,250	0,144
60 x 10	1180	1960	2610	3290	985	1720	2300	2900	1230	2130	2720	3580	1020	1870	2570	3390	18,00	6,00	1,73	0,5000	1,000	0,289
80 x 5	1070	1680	1830	2830	885	1450	1750	2720	1090	1770	1990	2570	902	1530	1890	2460	21,30	5,33	2,31	0,0833	0,333	0,144
80 x 10	1500	2410	3170	3930	1240	2110	2790	3450	1590	2730	3420	4490	1310	2380	3240	4280	42,70	10,70	2,31	0,6670	1,330	0,289
100 x 5	1300	2010	2150	3300	1080	1730	2050	3190	1340	2160	2380	3080	1110	1810	2270	2960	41,70	8,33	2,89	0,1040	0,417	0,144
100 x 10	1810	2850	3720	4530	1490	2480	3260	3980	1940	3310	4100	5310	1600	2890	3900	5150	83,30	16,70	2,89	0,833	1,670	0,289
120 x 10	2110	3280	4270	5130	1740	2860	3740	4500	2300	3900	4780	6260	1890	3390	4560	6010	144,00	24,00	3,46	1,000	2,000	0,289
160 x 10	2700	4130	5360	6320	2220	3590	4680	5530	3010	5060	6130	8010	2470	4400	5860	7110	341,00	42,70	4,62	1,330	2,670	0,289
200 x 10	3290	4970	6430	7490	2690	4310	5610	6540	3720	6220	7460	9730	3040	5390	7150	9390	667,00	66,70	5,77	1,670	3,330	0,289

In the case of several parallel bars, the distance between the bars is the same as the thickness. For alternating current, the net distance between the phases is equal to 0.8 + the distance between phase axes. *Minimum distance

EN		DIN		ASTM	AFNOR	BS	JIS	SN
Symbolic	Numerical	Symbolic	Numerical	ASTM	AFNOR	BS	JIS	SN
Cu-ETP	CW004A	E-Cu58	20065	C11000	CuA1	C101	C1100	Cu-ETP
Cu-OFE	CW009A	-	-	C10100	CuC2	C110	-	Cu-OFE
Cu-OF	CW008A	OF-Cu	2.0040	C10200	CuC1	C103	C1020	Cu-OF
Cu-HCP	CW021A	Se-Cu	2.0070	-	-	-	-	-
Cu-PHC	CW020A	Se-Cu	2.0070	C10300	-	-	-	Cu-HCP
Cu-PHCE	CW022A	-	-	-	-	-	-	-
CuAg0,10	CW013A	CuAg0,10	2.1203	C10700	-	-	-	-
				C10940
				C11600
CuAg0,04P	CW014A	-	-	C11904	-	-	-	-
CuAg0,10P	CW016A	CuAg0,1P	2.1197	C11907	-	-	-	CuAg0,1P
Cu-DHP	CW024A	SF-Cu	2.0090	C12200	CuB1	C106	C1220	-
Cu-DHP	CW024A	SF-Cu	2.0090	C12200	CuB1	C106	C1221	-
Cu-DLP	CW023A	SW-Cu	2.0076	C12000	CuB2	-	-	Cu-DLP
CuTeP	CW118C	CuTeP	2.1546	C14500	CuTe 1336	C109	-	CuTeP
CuFe2P	CW107C	CuFe2P	2.1310	C19400	-	CW107C	-	-
Cu-S	CW114C	CuSP	2.1498	C14700	Cu-S 1336	C111	-	Cu-S

Designations			Measurements in mm									Hardness				Tensile Strength	Yield Limit at 0,2%	Elongation
			round, square, hexagonal			rectangular						Hardness				Tensile Strength	Yield Limit at 0,2%	Elongation
			round, square, hexagonal			Thickness			Width			HB		HV		R_m	R_p0.2	A_100mm	A
Symbolic	Numerical	Metallurgical State	From	Greater than	Up to and including	From	Greater than	Up to and including	From	Greater than	Up to and including	min.	max.	min.	max.	N/mm²	N/mm²	%	%
Symbolic	Numerical	Metallurgical State	From	Greater than	Up to and including	From	Greater than	Up to and including	From	Greater than	Up to and including	min.	max.	min.	max.	min.	N/mm²	min.	min.
Cu-ETP Cu-FRHC Cu-OF Cu-OFE CuAg0,04 CuAg0,07 CuAg0,10 CuAg0,04P CuAg0,07P CuAg0,10P CuAg0,04(OF) CuAg0,07(OF) CuAg0,10(OF) Cu-PHC Cu-HCP Cu-PHCE	CW004A CW005A CW008A CW009A CW011A CW012A CW013A CW014A CW015A CW016A CW017A CW018A CW019A CW020A CW021A CW022A	D	2	-	160	0,5	-	40	1	-	200	Cold drawn product without specific properties
		H035^a	2	-	160	0,5	-	40	1	-	200	35	65	35	65	-	-	-	-
		H200^a	2	-	160	1	-	40	5	-	200	-	-	-	-	200	max.120	25	35

		H065	2	-	80	0,5	-	40	1	-	200	65	90	70	95	-	-	-	-
		R250	2	-	10	1	-	10	5	-	200	-	-	-	-	250	min. 200	8	12
		R250	-	10	140	-	-	-	-	10	200	-	-	-	-	250	min. 180	-	15
		R230	-	30	80	-	10	40	-	10	200	-	-	-	-	230	min. 160	-	18

		H085	2	-	40	0,5	-	20	1	-	120	85	110	90	115	-	-	-	-
		H075	-	40	80	-	20	40	-	20	160	75	100	80	105	-	-	-	-
		R300	2	-	20	1	-	10	5	-	120	-	-	-	-	300	min. 260	5	8
		R280	-	20	60	-	10	20	-	10	120	-	-	-	-	280	min. 240	-	10
		R260	-	40	60	-	20	40	-	20	160	-	-	-	-	260	min. 220	-	12

		H100	2	-	10	0,5	-	5	1	-	120	100	-	110	-	-	-	-	-
		R350	2	-	10	1	-	5	5	-	120	-	-	-	-	350	min. 320	3	5
NOTE - 1 N/mm² is equivalent to 1 MPa
^a Annealed.

Nominal measurements		Tolerances ^a
Nominal measurements		Round Bars and Wiring ^b (Diameter)		Square and Hexagonal Bars and Wiring (width between faces)
Greater than	Up to and including	Class A	Class B	Class A	Class B
2^c	3	0	± 0,03	-	-
2^c	3	-0,06	± 0,03	-	-
3	6	0	± 0,04	0	± 0,06
3	6	-0,08	± 0,04	-0,12	± 0,06
6	10	0	± 0,05	0	± 0,08
6	10	-0,09	± 0,05	-0,15	± 0,08
10	18	0	± 0,06	0	± 0,09
10	18	-0,11	± 0,06	-0,18	± 0,09
18	30	0	± 0,07	0	± 0,11
18	30	-0,13	± 0,07	-0,21	± 0,11
30	50	0	± 0,08	0	± 0,13
30	50	-0,16	± 0,08	-0,25	± 0,13
50	80	0	± 0,10	0	±0,15
50	80	-0,19	± 0,10	-0,30	±0,15
80	120	0	± 0,18	0	±0,27
80	120	-0,35	± 0,18	-0,54	±0,27
120	160	0	± 0,30	0	±0,32
120	160	-0,6	± 0,30	-0,63	±0,32
^a The tolerances specified are based on the ISO h11 or ISO h12 tolerances for class A (only negative tolerances) and on ISO js11 or ISO js12 tolerances for class B (positive / negative tolerances).
^b Circularity (see section 3.3) is included in the tolerances for diameter, and must not exceed half of the tolerance specified in the table.
^c Including the value of 2mm

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ELECTRICAL SECTOR. Bronmetal

Type Catalogue

Created 03/04/2023

INDUSTRIAL SECTOR Bronmetal

Type Catalogue

Created 07/07/2020

Round and square copper bars

Supply formats:

Round

Square

Data sheet: Round and square copper bars

ALEACIONES. COMPOSICIÓN DEL Cu-OFE y Cu-PHCE según EN 13601

ELECTRICAL PROPERTIES ( AT 20ºC)

PERMISSIBLE CURRENT. DIN 43671

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