K5
A wrought copper-nickel-aluminium bronze with very high mechanical properties and good impact and fatigue resistance, corrosion-resistant, non-sparking and strictly amagnetic.
✓ Lead-free · REACH / RoHSVery high strength
Outstanding mechanical properties with good impact and fatigue resistance.
Aerospace-certified
Meets aerospace material requirements (NFL 14-702, ASNA 6127).
Amagnetic & non-sparking
Strictly amagnetic with non-sparking behaviour on impact.
Reliable in severe service
Dependable under high mechanical constraints, corrosion and HPHT conditions.
Fully integrated supply
Cast, forged and machined in-house, full traceability.
Copper-Nickel Alloys.
K5 is a wrought copper-nickel-aluminium bronze engineered for demanding applications that require very high mechanical properties and reliable behaviour under severe operating conditions. It offers good impact and fatigue resistance, is strictly amagnetic and non-sparking on impact.
Certified to aerospace material requirements, K5 suits high-stress aerospace components, HPHT oil & gas parts, electrical-engineering hardware and marine fittings where reliability under load and in harsh environments is essential.
Minimum guaranteed properties.
| Grade / spec | Form | Tensile (ksi) | Yield 0.2% (ksi) | Elong. (%) | Hardness (HB) | Hardness (HRC) | Compliant with |
|---|---|---|---|---|---|---|---|
| As supplied | Bars | 104 ksi | 72 ksi | 7 | 200 | 15 | ASNA 6127, NFL 14702, GAM MM11 |
Data for information only, non-contractual. Request a certified datasheet for design allowables.
Physical properties
| Density | 8.9 g/cm³ |
| Electrical conductivity | 9 %IACS |
| Thermal conductivity | 30 W/m·K |
| Young's modulus | 120 GPa |
| Thermal expansion | 17 ×10⁻⁶/K |
| Magnetic permeability | 1.01 |
| Machinability index | 10 |
| NACE corrosion rating | 5 |
Norms & designations.
Aerospace
- NFL 14-702
- ASNA 6127
- GAM MM11
Designations
- CuNi14Al2 / CuNi14Al3
- Equivalent: X316
Forms & applications.
Bars & hollow bars
Round bar up to Ø 254 mm / 10″, plus hollow bars, standard stocked forms for high-strength bushings, bearings and sleeves.
Forged & machined parts
Forged blanks and ready-to-use machined components produced in-house with full traceability.
Structural & actuation
High-stress aerospace components requiring strength, fatigue resistance and non-magnetic behaviour.
Conductive hardware
Electrical-engineering parts requiring amagnetic behaviour and reliable mechanical performance.
Marine fittings
Corrosion-resistant, non-sparking and amagnetic parts for marine and naval service.