Equivalent Specifications

ASTM B 171 C61300
ASTM B 100 C61300

Key Features

A single phase ductile aluminium bronze with the addition of tin to give excellent corrosion resistance and low magnetic permeability.

Typical Uses

This alloy is ductile and can be cold worked. It is normally manufactured in the form of tube plate to be used in water condenser system, pressure vessels and heat exchangers. The addition of tin gives added corrosion resistance.

The alloy is also used for bearing and expansion plates for bridges and other structural applications.

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ASTM C61300

A highly ductile wrought nickel-free aluminum bronze with a nominal composition of CuAl7Fe2.5Sn. C61300 contains 2.5% iron, which facilitates added strength and acts as a grain refiner. C61300 also contains a small addition of tin, which aids corrosion resistance. The alloy is mainly produced in the form of plates for sea water applications and is also used in water condensing systems. It meets the requirements of ASTM B 150 C61300 (bars) and ASTM B 171 C61300 (plates).

Description Aluminium Bronze
Nominal Composition CuAl7Fe2Sn
Alloy Type Wrought

Typical Mechanical Properties

Tensile Strength (N/mm²) 600
Proof/Yield Strength (N/mm²) 305
Elongation (%) 35
Hardness Brinell  
Impact Izod J20°C

Typical Physical Properties

Density g/cm³ 7.8
Melting Temperature Range °C 1040-1110
Thermal Conductivity W/mK 65
Electrical Resistivity μΩ.m15°C 15
Coefficient of Thermal Expansion 0-250°C 16
Relative Magnetic Permeability < 1.01
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.