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crank case alloy composition
Posted: Mon Dec 18, 2006 7:55 pm
by gregh
I have an '82 900S2, it has a crack in the crank case that I'm about to get welded, has anyone any idea as to the composition of the alloy in these (silicon,magnesium content)?
I'd like to help the engine shop out in there selection of tig wire, if I can.
thanks
Posted: Fri Dec 22, 2006 8:54 pm
by lb980316
Hllo,
You can use ALMG5 for welding the crank case.
Cheers,
MarcVSt
Posted: Tue Dec 26, 2006 2:25 pm
by seddy
when I investigated getting my cases repaired I was told the Aluminum was 6061
Posted: Fri Aug 24, 2007 12:54 am
by sbelcher
just a note about the advise given to gregh. I work with aluminium and the 6061 grade he was advised is a grade used for "wrought" products. i.e. extrusions or forgings. Casting grades normally have silicon added to lower the viscosity of the alloy when molten which allows them to flow into a mould more easily. this additive is absent in 6061....
For future reference, I am sure I have the information somewhere so will add it at a later date
Steve