Equivalent Specifications

BS EN 12420 1999 CW 304G
BS EN 12165 1998 CW 304G
DIN 17665 1983 2.0971
DIN 17675 1983 2.0971
DIN 17670 1983 2.0971
CuAl9Ni3Fe2
NFA51-116
GAM MM 11
GAM MM 12
GAM MM 13

Key Features

A complex Aluminium Bronze with small additions of nickel and iron.

The alloy has high mechanical properties while maintaining good ductility and toughness. Can also be manufactured with low magnetic permeability.

Typical Uses

Marine: Marine Defence applications requiring low magnetic permeability, valve blocks and valve stems and fittings.

Fasteners: Nuts and bolts

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CW304G

Description	Nickel Aluminium Bronze
Nominal Composition	CuAl9Ni3Fe2
Alloy Type	Wrought

Typical Mechanical Properties

Tensile Strength (N/mm²)	500
Proof/Yield Strength (N/mm²)	180
Elongation (%)	30
Hardness Brinell	115
Impact Izod J20°C	30

Typical Physical Properties

Density g/cm³	7.4
Melting Temperature Range °C	1050-1110
Thermal Conductivity W/mK	45
Electrical Resistivity μΩ.m15°C	20
Coefficient of Thermal Expansion 0-250°C	16
Relative Magnetic Permeability	1.1
Coefficient of Friction

Copper Alloys Ltd 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 Ltd's technical team on +44 (0) 1782-816888, or email sales@copperalloys.net.

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 acepted 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.