Re: Gun Metal

[Pierre]

Hi all,

I already asked this question few months ago, but due to some computer problems I lost the adress of the web site send by Alan .
WHAT IS THE CHEMICAL COMPOSITION OF THE SO CALLED GUN METAL?

I thank you for your help and promise you to not loose this info again !

KInd regards.

PIerre (Sorry but I missed few letters !)

[lancelot]

Hello Pierr,
Chemical composition ''gun metal'' as follows.

chemical composition by weight
STANDARD...BS1400G1
NEAREST ISO DESIGNATION...CuSn10Zn2INTERNATIONAL EQUIVALENCE...ASTM B505 IS 306
Cu%...Rem
Sn%...9.5-10.5
P%...0.02max
Pb%1.5max
Zn%1.75-2.75
Others...Fe-0.15maxTotal imp...0.50%max
Conditions...Un wrought

Standard...BS1400G1
Mechanical Properties
UTSN/mm2
E%...9min
Y.S.Rp...0.2...N/mm2
Hardness...HB
Applications
Typical uses...bearings bushes etc.....

Hope this is of some use to you,
All the best for now,
John.

[Tel]

This site is quite handy to have in your favourites

www.nbm-houston.com/metals/brass260.html