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  1. High Conductivity Free Machining Copper Rods  
 
 

    

 
     
 

High Conductivity Free Machining Copper Rods
(LEADED COPPER)

 

 

CHEMICAL  REQUIREMENTS

                Copper                                          ..                    ..                  ..     Remainder 

                Lead                                               ..                    ..                  ..     0.6 to 1.0%

                Impurities                                        ..                    ..                  ..     0.2 Max.

PHYSICAL  PROPERTIES

*Tensile strength                                  ..                    ..                  ..     23 to 35 kgs/mm2

  Elongation                                         ..                    ..                  ..     45 to 10%

  Electrical conductivity at 200C             ..                    ..                  ..     94 to 98% IACS

FABRICATION  PROPERTIES                   

                Capacity for being Cold worked          ..                   ..                   ..      Fair

                Hot formed                                                                                                                                      good

                Machineability ra­ting (Free cutting brass-100)                                                                         80

                Suitability for Brazing                         ..                   ..                  ..      Good

                Soldering                                          ..                   ..                  ..      Good

USES

Threaded-machine components and parts requiring high conductivity, extensive machining and corrosion resistance; electrical connectors, motor switch components etc.

 

 

(TELLURIUM COPPER)

As per BS 2874 C 109

 

CHEMICAL  REQUIREMENTS

                Copper                                              ..                 ..                 ..     Remainder

                Tellurium                                           ..                      ..                     ..     0.3 to 0.7%

                Impurities                                          ..                 ..                 ..     0.2%-Max

PHISICAL  PROPERTIES

                **Tensile strength                              ..                 ..                 …   23 to 35 kg/mm2

                    Elongation                                    ..                 ..                 ..     45 to 10%

                    Electrical conductivity at 100C        ..                      …              ..     94 to 98% IACS

FABRICATION  PROPERTIES

                Capacity for being cold worked           ..                  ..                ..     Fair

                        Hot formed                                ..                 ..                 ..    Good

                Machineability Rating (Free cutting brass.100)            ..                       ..    80

                       Suitability for Brazing                   ..                ..                 ..     Good

                       Soldering                                    …              ..                 ..     Good

USES

Threaded-machine components and parts requiring high conductivity, extensive machining and corrosion resistance, electrical connectors, motor, switch components, etc. requiring high softening temperature.

            *Material  can be supplied in any temper as required by customers.

          **Customers to specify temper required

 

 
 

 

 

 

 
 
 

1  High Conductivity Free Machining
    Copper Rods

 

2  Copper-Nickel-Alloy Rods

 

3  Copper Rods & Tubes for General
    Engineering Purposes

 

4  Nickel Silver Alloy Rods

 

5  Free Cutting Brass Rods

 

6  Brass Tubes 63/37

 

7  Manganese Brass Rods

 

8  Aluminium Brass Rods

 

9   Aluminium Silicon Bronze Rods

 

10 High Conductivity Electrolytic Copper      Rods and Tubes

 

11 British Standard Specifications for the      Principal

 

12 Non-Ferrous Casting Alloys

 

13 Aluminium Casting, Alloys for General      Engineering Purposes (Related      specification and trade name)

 

14 Table of sizes, weights & Lengths of       copper wire

 

15  Wrought Alloys and related British       and American Specifications

 

 
 

 

 
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