Overview

The materials show a prominent resistance against contact welding and low contact resistance. With the increase in graphite content, the resistance against welding increases. AgC materials have self-lubricating characteristic when used as sliding contacts.

Electrical Characteristic

Grain Size Fine Medium Large
Graphite content in % 3 4 5 3 4 3
Theorical density g/cm³ 9.46 9.16 8.88 9.46 9.16 9.16
IACS conductibility Measured by eddy Current method % ET 78 64 59 83.5 75.5 82.5
ED 80 80.5 78 87 81 90.5
U 67 57 49.5 82 76 81.5
HV hardness ET 45 to 55 40 to 50 40 to 50 30 to 40 30 to 40 30 to 40
ED 35 to 45 35 to 50 25 to 35 33 to 40 30 to 40 30 to 40
U 30 to 40 30 to 40 25 to 35 25 to 35 25 to 35 25 to 35

Applications

AgC is mainly used in protective switches like MCBs, MCCBs, Industrial circuit breaker for industry, etc that requite breaking capacity of 16 to 1000 A.

The manufacturing is purely carried out according to customer’s needs and specifications. Our expert technicians are promptly available to discuss dimensions, brazing requirements and informations, and contact forms.