Copper-NickelBeryllium-freeIn production
K5
CuNi14Al2, CuNi14Al3
K5 is a CuNi14Al2 or CuNi14Al3 alloy supplied as bars for aerospace, marine and defence parts. It combines very high mechanical properties with good resistance to impact, fatigue and seawater corrosion.
500–590 MPaYield strength
720–780 MPaTensile strength
7–10 %Elongation
200–215 HBHardness HB
Specify this grade
Qualification packs are released after a short form. Export control applies.
Properties
Guaranteed values, by temper.
- Alloy family
- Copper-Nickel
- Chemistry family
- CuNiAl
- Lead-free
- Yes
Forms
Forms & dimensions available
Bars6 variant(s)
Dimensional ranges and tolerances on request — machining and finishing are in house.
Standards
Standards & equivalences
- ASNA 6127
- GAM MM11
- NFL 14702
Product and process qualifications are listed above. Customer approvals are confidential and are not disclosed.
Applications
Markets & applications
Applications
- Bearings for aerospace structures
- Control elements of submarines
- Non-magnetic parts for electrical engineering
Why this grade
Strictly non-magnetic and non-sparking on impact.
Good impact and fatigue resistance.
Very good resistance to seawater corrosion and to oxidation.
Compliant with ASNA 6127, GAM MM11 and NFL 14702.
Alternatives
If this grade is not the right trade-off.
GradeChemistryYield strengthChoose it when
C97 ZeSTCuNi
Niclal 02RCuNi
Niclal 08RCuNi
Niclal 13RCuNi
Niclal 15RCuNi
Niclal 23RCuNiMn
Niclal 25RCuNi
Niclal 30ACuNiMn
Niclal 30A FeCuNiMn
Niclal 30BCuNi
Niclal 30B FeCuNiMn
Niclal 30DCuNiMn
Niclal 30RCuNi