Equivalent Specifications

ASTM B 98 C65500
CW116C
BS 101
SAE J463
SAE J461
DIN 2.1525
UNS C65500

Key Features

A high copper alloy, single phase silicon bronze. The alloy can be cold worked to increase the strength and can be supplied in a range of tempers. The addition of silicon and manganese not only improves the strength but also increase the corrosion resistance.

Typical Uses

General engineering: The combination of high tensile and good ductility combined with excellent corrosion resistance makes this alloy ideal for fasteners.

It is also used in plate form for bridge bearing and expansion plates and other structural applications.

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ASTM C65500

A silicon bronze CuSi3Mn1 which can be cold worked to enhance the mechanical properties. It is a high strength, engineering alloy that has excellent resistance to a wide range of corrosives, including fresh and salt water, most acids, alkalies, salts, and organic chemicals. However, it is not suitable for use with sulphides, nitric acid, acid chromates, or oxidizing salts such as ferric chloride. The alloy conforms to ASTM B 96 C65500 and ASTM B 98 C65500.

Description Silicon Bronze
Nominal Composition CuSi3Mn
Alloy Type Wrought

Typical Mechanical Properties

Tensile Strength (N/mm²) 490
Proof/Yield Strength (N/mm²) 270
Elongation (%) 18
Hardness Brinell  
Impact Izod J20°C  

Typical Physical Properties

Density g/cm³ 8.53
Melting Temperature Range °C 970-1025
Thermal Conductivity W/mK 36
Electrical Resistivity μΩ.m15°C 14.4
Coefficient of Thermal Expansion 0-250°C 18
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.