Equivalent Specifications

BS 1400 LB5
BS EN 1982-2008 GC CC497K
CuSn5Pb20-C
ASTM B 505 C94100
SAE 794
SAE 799
AS 1565-1985 C94100
AS 1565-1974 941C

Key Features

Will tolerate moderate loading, moderate to high sliding velocities. Can tolerate indifferent lubrication and dust or grit. Has good embed ability. Minimum shaft hardness HB 150.Tolerant of water lubrication.

Typical Uses

Steel backed automotive and aero engine bushes which may suffer from poor lubrication.
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ASTM B 505 C94100

An American continuous cast high leaded tin bronze CuSn5Pb20.With the extremely high lead the alloy has embeddability and has excellent anti-seizer properties when there is an interruption or breakdown of lubrication. The alloy can also tolerate the ingress of dirt and foreign bodies which would normally damage a shaft. This specification can also be manufactured to alternative requirements, SAE 94, QQ-C-390B, Mil-B-16261 grade x , AS 1565 C94100, DIN 1716 2.1188.01, GB 1176 ZCuPb20Sn5-La, NF A53-707 CuPb20Sn5 Y70, BS 1400 LB5, NS 16544-02 and EN 1982-2008 GC CC497K.

Description Leaded Bronze
Nominal Composition CuPb20Sn5
Alloy Type Cast

Typical Mechanical Properties

Tensile Strength (N/mm²) 230
Proof/Yield Strength (N/mm²) 130
Elongation (%) 10
Hardness Brinell 60
Impact Izod J20°C

Typical Physical Properties

Density g/cm³ 9.2
Melting Temperature Range °C 855-950
Thermal Conductivity W/mK 71
Electrical Resistivity μΩ.m15°C 0.11
Coefficient of Thermal Expansion 0-250°C 19
Relative Magnetic Permeability
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.