LB1 - Copper Alloys

A British continuous cast leaded tin bronze to the classic British engineering standard BS1400 LB1 CuPb15Sn9, meeting the requirements of BS EN 1982-2008 GC CC-496K. LB1 can handle moderate loading and high sliding velocities. This high leaded bronze can also withstand dust and grit ingress. With the high lead content it has excellent lubricity and good embeddability. The alloy requires a minimum shaft hardness of HB150. LB1 will also work well with water lubrication, making it a useful bearing for water pumps.

Equivalent Specifications

BS 1400 LB1
BS EN 1982-2008 GC CC-496K
CuSn7Pb15-C

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.

Description	Leaded Bronze
Nominal Composition	CuPb15Sn9
Alloy Type	cast

Typical Mechanical Properties

Tensile Strength (N/mm²)	270
Proof/Yield Strength (N/mm²)	150
Elongation (%)	16
Hardness Brinell	80
Impact Izod J20°C

Typical Physical Properties

Density g/cm³	9.1
Melting Temperature Range °C	855 - 970
Thermal Conductivity W/mK	47
Electrical Resistivity μΩ.m15°C	0.16
Coefficient of Thermal Expansion 0-250°C	19
Relative Magnetic Permeability
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.