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