Metal strip with high electric conductibility and connector made from it

摘要

Electrically conducting metal strip comprises a base material made from a copper alloy with a coating made from a tin-silver alloy. An intermetallic phase is formed between the base material and the coating. The copper alloy contains (in weight %): 1.0-4.0 nickel, 0.08-1.0 silicon, 0.02-1.0 tin, 0.01-2.0 zinc, 0.005-0.2 zirconium and 0.02-0.5 silver. The coating contains 1-3.8 weight % silver. Preferred Features: The coating further contains 0.1-5 weight % indium. The base material further contains up to 0.1 weight % magnesium, up to 0.05 weight % phosphorus and/or up to 0.1 weight % iron.