GIGALLOY® High Strength Copper Alloy for Connectors (UNS Alloy No. C19910)
NKT322 GIGALLOY® is a proprietary alloy we developed by adding small amounts of iron to titanium copper and further improving processes. It is notably stronger than ordinary titanium copper and has better bend formability.
A beryllium-free ultra-high-strength copper alloy
Strength and bend formability equal to or greater than mill-hardened beryllium copper: In wide use as an alternative product
The highest level of stress relaxation resistance among copper alloys: Maintains contact force at high temperatures
Table 1. NKT322 chemical composition (%)
Table 2. Physical properties of NKT322
|Electrical conductivity||12||%IACS (@20℃)|
|Specific resistance||144||nΩ·m (@20℃)|
|Linear expansion coefficient||18.0||×10-6/K (20 to 300℃)|
|Modulus of elasticity||120||GPa|
Table 3. Mechanical properties of NKT322
- Standard values are shown for tensile strength, Yield strength, and elongation, while typical values are given for Vickers hardness.
Correlation between Yield strength and bend formability
- Test piece shape: 0.1 mm thick × 10 mm wide × 30 mm long
For reference purpose only. They are observed values, not guaranteed values.
Stress relaxation resistance
- For reference purpose only. They are observed values, not guaranteed values.
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