Nikkei MC Aluminum America provides high rigidity aluminum alloys for cast parts that need stiffness, dimensional stability, and low expansion. These materials are used in transmission parts, engine parts, and machine frame applications where maintaining shape and structural consistency is important. Our high rigidity alloy offering is based on the Al-Si-Cu alloy series. That makes it a strong fit for components that need dependable performance in mechanically demanding environments. Rather than treating rigidity as a general material claim, we focus on supplying alloys suited to applications where that property directly affects part function. The result is an alloy solution built for practical use in real production settings.
Key characteristics: High rigidity, low expansion.
Common applications: Transmission parts, engine parts, machine frame applications.
Alloy series: Al-Si-Cu.
| Alloy | State | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Young's modulus (GPa) | Linear expansion coefficient (10^-6/K) | Specific gravity (g/cm^3) |
|---|---|---|---|---|---|---|---|
| DX80 | F | 267 | 297 | 0.2 | 98 | 16.6 | 2.85 |
| ADC12 (A383) | F | 186 | 296 | 2.0 | 71 | 19.0 | 2.73 |
| ADC14 (B390) | F | 258 | 260 | 0.4 | 81 | 21.0 | 2.7 |
| Cast iron | >200 | 100 | 12.0 | 7.2 |