High strength, high conductivity copper alloys and electrical conductors made therefrom

摘要

A copper base alloy achieves a breakthrough electrical conductor product of strength, flexure and conductivity of minimal inverse in relationship of at least 85% IACS electrical conductivity while providing an 80 to 85 ksi tensile strength, an increase of at least 33% in strength compared to prior art and is made from an alloy containing 0.2-0.5 w/o chromium, 0.02-0.20 w/o silver and 0.04-0.16 w/o of a third metallic component selected from tin, magnesium and tin/magnesium together.

主权项

1. A copper base alloy conductor product of hot or cold worked and final heat treated forms made of an alloy composition consisting of:
(a) 0.2-0.6 w/o chromium, (b) 0.02-0.20 w/o silver, (c) 0.04-0.16 w/o of a third metallic component selected from the group consisting of tin, magnesium and tin/magnesium combined, and (d) balance copper,
the product having a tensile strength of at least 80 ksi, at least 6% elongation and at least 85% IACS electrical conductivity.