LG2 - Copper Alloys

A British continuous cast leaded gunmetal to BS1400 LG2 CuSn5Zn5Pb5, which also meets the European norm BS EN 1982-2008 CC491K. This alloy has higher strength than CC490K and can be used under low mechanical loads and non-critical engineering applications.

Equivalent Specifications

BS 1400 LG2
BS EN 1982-2008 GC CC491K
CuSn5Zn5Pb5-C
ASTM B 505 C83600
ASTM B 271 C83600
ASTM B 584 C83600
QQC 390B Type 111
Mil-B-11553 Comp 2
Mil-C-14345 Alloy 1
SAE J461
SAE J462
SAE 40
AS 1565 1985 C83600
AS 1565 1974 836B
AMS 4855
JIS H5111
JIS H2203
DIN 1705 G-CuSn5ZnPb 2.1096.01
RG5
SS 5204-15

Key Features

A general bearing alloy working under low loads and for non critical uses.

Needs adequate lubrication but good embed ability.

Typical Uses

Housings for water and steam fittings up to 225°c.

Description	Leaded Gunmetal
Nominal Composition	CuSn5Pb5Zn5
Alloy Type	cast

Typical Mechanical Properties

Tensile Strength (N/mm²)	270
Proof/Yield Strength (N/mm²)	112
Elongation (%)	36
Hardness Brinell	70
Impact Izod J20°C	26

Typical Physical Properties

Density g/cm³	8.8
Melting Temperature Range °C	855 - 1010
Thermal Conductivity W/mK	71
Electrical Resistivity μΩ.m15°C	0.11
Coefficient of Thermal Expansion 0-250°C	18
Relative Magnetic Permeability	1.01
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.