Copper Conductivity Materials Properties Table – Knowledge Base

Indicative values are given in the table below for the most important mechanical and physical properties. Alloys are ordered in decreasing electrical conductivity. Click the alloy’s ISO designation to go to further information.

Alloy	% IACS	%Tensile Strength N/mm²	Proof Strength	Elongation %	Hardness HV	Thermal Conductivity W/m^oC	Index %	Temp. Limit ^oC
Oxygen-free High Conductivity Copper Cu-OF Cu-OFE	102	385	325	60	115	394	20	130
Electrolytic Tough Pitch Copper Cu-ETP1	101	385	325	55	155	394	20	130
Electrolytic Tough Pitch Copper Cu-ETP	100	385	325	55	155	394	20	130
Oxygen-free Extra Low Phosphorus Copper Cu-PHC	100	385	325	55	155	390	20	130
Silver-bearing Tough Pitch Copper CuAg0.04 CuAg0.10	100	385	325	55	155	394	20	250
Silver-bearing Oxygen-free Copper CuAg0.04(OF) CuAg0.10(OF)	100	385	325	55	155	394	20	250
Copper-tin-tellurium CuSn0.15Te	98	400	–	30	140	390	20	400
Phosphorus Deoxidised Tough Pitch Copper Cu-DLP	98	385	325	55	155	365	20	130
Cast Copper Cu-C	98	150	40	25	40	372	10	150
Copper-zirconium CuZr	98	150	40	25	40	372	10	150
Copper-tellurium CuTeP	94	300	240	5	95	370	80	150
Copper-sulphur CuSP	94	300	240	5	95	347	80	150
Copper-iron CuFe0.1P	90	520	480	15	160	364	18	200
Copper-tin CuSn0.15	88	460	410	25	200	360	20	220
Copper-tin CuSn0.2	83	620	–	30	–	290	20	220
Copper-magnesium CuMg0.2	82	460	370	10	–	310	20	150
Copper-chromium-zirconium CuCr1Zr	80	540	440	35	175	300	30	500
Copper-iron-phosphorus-magnesium CuFePMg	80	552	490	15	190	320	20	150
Copper-tin CuSn0.5	70	460	250	9	110	360	20	220
Copper-iron CuFe2P	65	580	485	10	170	265	25	200
Copper-magnesium CuMg0.5	64	520	430	10	–	270	20	150
Copper-beryllium CuCo1Ni1Be	63	750	650	25	290	260	30	177
Copper-nickel-silicon CuNi1Si	60	590	570	30	220	260	30	200
Copper-beryllium CuCo2Be	60	750	650	20	290	199	30	177
Copper-beryllium CuNi2Be	60	750	650	20	290	242	30	177
Copper-zinc CuZn5	56	350	200	45	95	233	25	75
Copper-nickel-siliconCuNi2Si	51	700	620	35	220	250	30	200
Copper-iron CuFePCoSn	50	670	650	26	190	200	18	350
Copper-nickel-silicon CuNi3Si	45	800	780	30	230	190	30	200
Copper-zinc CuZn10	44	380	280	45	100	190	25	75
Copper-zinc CuZn20	32	370	320	46	105	140	25	75
Copper-zinc CuZn39Pb3	29	500	350	20	135	121	100	–
Copper-zinc CuZn30	28	460	310	45	125	120	30	75
Copper-zinc CuZn35Mn2Al1Fe1-C (Cast)	22	500	200	18	120	87	–	–
Copper-zinc CuZn33Pb2-C (Cast)	20	180	70	12	50	–	–	–
Copper-zinc CuZn39Pb1Al-C (Cast)	18	280	120	10	70	–	–	–

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