Def Stan 02-834 - Copper Alloys

A UK Defence Standard for an aluminium silicon bronze CuAl6Si2Fe which has excellent corrosion properties and can be manufactured with low magnetic permeability. This specification supersedes NES 834 Part 2 which in turn has been superseded by Def Stan 02-879 Part 2.

Equivalent Specifications

Def Stan 02-834
NES 834
DGS 1044
BS 2874 CA 107
BS EN 12165:1998 CW 301G

Key Features

A single phase ductile silicon aluminium bronze with excellent corrosion resistance and low magnetic permeability.

Typical Uses

Marine

A ductile aluminium bronze mainly used in the Naval Defence sector for Mine Hunters and applications which require low magnetic permeability and good corrosion resistance. Also used in weapon handling systems.

Description	Silicon Aluminium Bronze
Nominal Composition	CuAl6Si2Fe
Alloy Type	wrought

Typical Mechanical Properties

Tensile Strength (N/mm²)	550
Proof/Yield Strength (N/mm²)	250
Elongation (%)	23
Hardness Brinell	120
Impact Izod J20°C

Typical Physical Properties

Density g/cm³	7.7
Melting Temperature Range °C	985 - 1005
Thermal Conductivity W/mK	42
Electrical Resistivity μΩ.m15°C	21.6
Coefficient of Thermal Expansion 0-250°C	18
Relative Magnetic Permeability	1.005
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.