NF A 51-116 CuAl11Ni5Fe5

A National French Standard for a nickel aluminium bronze CuAl11Ni5Fe5. The alloy is one in a range of specifications used by world wide aircraft manufacturers for landing gear bushings and bearings. It has extremely good wear resistance and anti galling properties. It also finds many applications in defence and commercial sea water systems where it has good corrosion resistance. The alloy can be specified to EN 12163/12165/12420 CW308Gand NFL 14 706 (UA11N).

Equivalent Specifications

DIN 17665 1983 2.0978
DIN 17678 1983 2.0978
DIN 17672 1983 2.0978
CuAl11Fe6Ni6
CuAl11NI6Fe5
BS EN 12165 CW 308G
CuAl11Ni
NFL 14-706
NFA 51-116
AMS 4590
C63020
NCT 10-641-01MD
CuAl11Ni5Fe5

Key Features

A high strength nickel aluminium bronze that can be heat treated by quench hardening and tempering

Typical Uses

One of the highest strength aluminium bronzes.

Aerospace: Bushings and bearings.

General engineering: Wear plates, dies.

Marine: Valves, hydraulic blocks, fixtures and fittings.

Description	Nickel Aluminium Bronze
Nominal Composition	CuAl11Ni5Fe5
Alloy Type	wrought

Typical Mechanical Properties

Tensile Strength (N/mm²)	800
Proof/Yield Strength (N/mm²)	570
Elongation (%)	4
Hardness Brinell	215
Impact Izod J20°C

Typical Physical Properties

Density g/cm³	7.6
Melting Temperature Range °C	1060 - 1075
Thermal Conductivity W/mK	54
Electrical Resistivity μΩ.m15°C	22
Coefficient of Thermal Expansion 0-250°C	17
Relative Magnetic Permeability
Coefficient of Friction

Copper Alloys has the ability to modify existing alloys for improved performance. Many customers have benefited from this in the past.

To discuss your requirements, call a member of Copper Alloys’s technical team on +44 (0) 1782-816888, or email [email protected].

This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with tempeter, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose.

Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the Company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions, a copy of which is available on request.