Copper Nickel Silicon | Alloy Grade - CuNi2Si
Material No. Unified Numbering System (UNS): C64700
Chemical Composition
| Element | Cu | Ni | Si |
|---|---|---|---|
| Min (%) | Rem | 1.6 | 0.4 |
| Max (%) | Rem | 2.5 | 0.8 |
1. Age-hardened high strength alloy.
CuNi2Si provides high tensile strength up to 800 MPa combined with dynamic fatigue resistance for high torque motor end rings.
Common Fabrication Processes
Hot Forging
Solution Treatment
Age Hardening
CNC Turning
Mechanical & Electrical Properties
| Form | Range in mm | Tensile Strength in N/MM² | Elongation in % | Rockwell Hardness HRB | Conductivity% |
|---|---|---|---|---|---|
| End Ring | Precipitation Hardened | 650-800 | 8-12 | 180-220 HB | 45-50 |
Physical Properties
| Melting Point – Liquidus °C | 1070 |
| Density lb/cu in. at 20°C | 0.318 |
| Electrical Conductivity% IACS at 20°C | 45 |
Applicable Form & Size
| Form | Size Dimensions |
|---|---|
| Ring | OD: Ø150 mm - Ø1200 mm |
| Bar | Thick: 10 mm - 100 mm |
Apart from above we can also manufacture as per customer specification.
Typical Industrial Applications
Electrical Sector
- Locomotive Traction Motor Short Circuit End Rings
- High Stress Fasteners
Industrial & Automotive Sector
- Cryogenic Connectors
- Centrifugal Pump Bushings