C95800 Nickel Aluminium Bronze

C95800 is a high-strength nickel aluminium bronze alloy widely used in marine, offshore, and heavy engineering applications. Known for its excellent combination of impact strength, corrosion resistance, and wear performance, C95800 is particularly suited to demanding environments where components are exposed to seawater, high loads, and abrasive conditions.

This alloy is commonly specified for applications requiring long service life, reliability, and resistance to corrosion, cavitation, and galling. The alloy can be supplied to a number of global specifications, SAE J461/ J462, QQ-C-390 G8, BS 1400 AB2, EN 1982-2008 CC333G, NF A 53-709 CuAl10Fe5Ni5 Y70, DIN 1714 W Nr 2.0975.04, AS 1565 C95810, JIS H 5121 CAC703C class3, SFS 2212 GC CuAl10Fe5Ni5, GB1176 ZCuAl9Fe4Ni4Mn2, GOST 493 BrAl10Z4N4L-K and SIS 145716-15.

Properties of C95800 Nickel Aluminium Bronze

C95800 offers a well-balanced combination of strength and durability, making it one of the most widely used aluminium bronze grades for critical engineering components.

Key properties include:

High tensile strength (typically 580–660 MPa)
excellent seawater corrosion resistance
Outstanding wear and abrasion resistance
Good resistance to cavitation and erosion
Anti-galling properties for moving components
Reliable performance under heavy loads

Compared to many other copper alloys, C95800 maintains its integrity in aggressive environments, particularly in marine and offshore applications.

C95800 vs Other Aluminium Bronze Alloys

C95800 is often compared with other aluminium bronze grades depending on the application requirements.

Compared to C95500 alloy, C95800 typically offers improved strength and enhanced resistance to seawater corrosion
Compared to C95900 alloy, it provides a strong balance between wear resistance and corrosion performance
Alternative alloys such as C63000 alloy and C63200 alloy may be selected where different mechanical or compositional characteristics are required

Selecting the correct alloy depends on the balance of strength, corrosion resistance, and wear performance needed for the application.

Equivalent Specifications

ASTM B505 C95800
ASTM B148 C95800
ASTM B271 C95800
SAE J461
BS EN 1982-2008 GC CC 333G
CuAl10Fe5Ni5-C

Key Features

Good strength, wear and corrosion resistant.

Alloy is heat treatable.

Typical Uses

Gears, worm wheels, valve guides and seats and structural applications.

Due to its strength and corrosion resistance, C95800 is widely used for gears, worm wheels, valve guides & seats and structural applications. It is used across a range of industries.

Typical industries include:

Marine and offshore components – propellers, shafts, seawater systems
Oil and gas equipment – valves, pumps, and pressure components
Industrial machinery – bearings, bushings, and gears
Defence and aerospace – high-load and safety-critical components

Its resistance to seawater corrosion makes it a preferred material for components operating in harsh marine environments.

Description	Nickel Aluminium Bronze
Nominal Composition	CuAl8NI5Fe4Mn
Alloy Type	cast

Typical Mechanical Properties

Tensile Strength (N/mm²)	590
Proof/Yield Strength (N/mm²)	250
Elongation (%)	18
Hardness Brinell	159
Impact Izod J20°C	27

Typical Physical Properties

Density g/cm³	7.64
Melting Temperature Range °C	1043 - 1063
Thermal Conductivity W/mK	36
Electrical Resistivity μΩ.m15°C
Coefficient of Thermal Expansion 0-250°C	16.2
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.