Specifications - Conductive Copper

Please open the specification sections below for details of grade designations, mechanical and service properties and applications.

 

Knight Precision Wire are specialist manufacturers of Wire and Cable in many specifications and can provide free quotations on your requirements. Please get in touch to arrange this.

Request a Quote

Grade Designations And Chemical Compositions for Copper specifically used in electrical conductor applications*

Material Designation BS EN 13602:2013

Nearest equivalent

                     

Other elements

Symbol

Number

UNS

BS 4109

Cu

Be

Co

Fe max

Mn max

Ni

P

Pb max

Sn

Zn

Others

Impurities max excluding

Excluding

Cu-ETP

CW004A

C10100

C101

99.90 min

           

0.005

   

O 0.040 max Bi 0.0005 max

0.03

Ag , O

Cu-OF

CW008A

C10300

C103

99.95 min

           

0.005

   

Bi 0.0005 max

0.03

Ag

*denotes Tinned Wire.

 

Mechanical Properties for Copper specifically used in electrical conductor applications

Material Designation BS EN 13602:2013

Nearest equivalent

Material Condition

UTS Nominal Rm N/mm²

% Elongation A200mm

Conductivity

Symbol

Number

UNS

BS 4109

   

Single Wire

Multi Line

% IACS

Cu-ETP

CW004A

C10100

C101

Annealed

200

10 to 33

8 to 26

100

Cu-OF

CW008A

C10300

C103

Cu-ETP*

CW004A

C10100

C101

Annealed

200

5 to 31

5 to 22

92.6 to 99.0

Cu-OF*

CW008A

C10300

C103

Cu-ETP

CW004A

C10100

C101

Hard Drawn

360 to460

-

-

93.4 to 97.1

Cu-OF

CW008A

C10300

C103

Cu-ETP*

CW004A

C10100

C101

Hard Drawn

360 to 460

-

-

 - to 96.2

Cu-OF*

CW008A

C10300

C103

General Characteristics for Copper specifically used in electrical conductor applications

Material Designation BS EN 13602:2013

Nearest equivalent

 

 

 

 

 

Symbol

Number

UNS

BS 4109

 

Cu-ETP

CW004A

C10100

C101

ETP or Tough Pitch Coppers - Coppers of this type are produced with a controlled amount of oxygen and have high electrical conductivity. Special precautions are necessary when heat treating, welding or brazing these coppers in atmospheres containing hydrogen to avoid hydrogen embrittlement.

Cu-OF

CW008A

C10300

C103

OF or Oxygen Free Coppers - Coppers of this type are produced in an oxygen-free environment without the use of deoxidisers and have high electrical conductivity. These coppers may be heat treated, welded or brazed without the need for special precautions to avoid hydrogen embrittlement.