Key features:

Excellent machinability, medium strength, good pressure tightness; not subject to dezincification.

Full alloy description:

A. W. Fraser Alloy LG2 is a general purpose leaded gunmetal conforming to the requirements of BS 1400 - 1985 alloy LG2. (BS EN 1982 CuSn5Zn5Pb5).

LG2  has  excellent  machining  properties,  medium  strength,  good  pressure  tightness  and  is  not  subject  to dezincification (Category I alloy), and has reasonable corrosion resistance to seawater and brine, making it suitable for pump and valve components.

LG2  is  suitable  for  bearings  having  light  loads  and low  to  medium  speeds  with  adequate  lubrication,  and  for  very light duty gears when loading is negligible.

The  composition  of  AW  Fraser  alloy  LG2  is  strictly  controlled  as  are  the  casting  conditions.   

LG2  products  are manufactured using the latest continuous and centrifugal casting technology.
Machinability Rating: 85
SAE Grade: 40/J462

Comparable specifications:

BS1400 - LG2; AS1565 83600; ASTM B505, B271 - 83600; SAE 40; JIS (Japan) H5121 – CAC402C (BC6); DIN (Germany) 1705 - RG5; ISO 1338 - CuPb5Sn5Zn5; BS EN 1982 CuSn5Zn5Pb5

Download tech sheet:

For a full alloy summary, including Chemical Composition and Mechanical Properties, please download our tech sheet in PDF format below...


  • C83600
  • BS1400 - LG2 / CuSn5Pb5Zn5
  • CC491K / CuSn5Zn5Pb5
  • 2.0196 (RG5) / CuSn5ZnPb*
  • CAC402C (BC6)
  • U-E5Pb5Z5
  • UNI 7013-72-8A*
  • C83600*
* = similar specification


The alloy information provided on this page is indicative and must not be taken as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with product specification.

The information contained on this page is based on our present knowledge and is given in good faith as a precursor to discussing your specific requirements with us.

No liability will be accepted by AW Fraser in respect of any action taken by any third party in relying on the data on this page.
Enquire about Alloy LG2
AW Fraser has the capability to modify alloys for improved performance.

To discuss your specific requirements, please contact our technical team on the telephone number below, or e-mail us via the enquiry form:
  • +64 3 341 0027
Alloy enquiry form
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Reasons to choose AW Fraser:

  • AW Fraser exports to all corners of the globe, maintaining a competitive edge in the global marketplace through a commitment to quality engineering and manufacturing.
  • AW Fraser maintains its own laboratory with the latest equipment and can supply reports for all production on request. Read more
  • AW Fraser is accredited to ISO 9001 and ISO 14001, delivering independently accredited quality. Read more
  • AW Fraser has received multiple Supplier Awards from a Fortune 500 company for machined components.

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