not sure why CO2 would cause brittle welds, AFAIK the gas is to sheild it from oxidising, CO2 is good at this, Argon better, as a result you need less argon to sheild than you do CO2???
Seeing as a big pub bottle costs me around £11 a fill, and everyone else I know uses CO2 for general work, Ill stick with CO2 unless somone can give me a good reason not to
Im on the comittee of a local club, I get the steward to order me one in when hes doing a gas order, if your friendly with a local landlord, they will probably do the same
Like I said refills are £11 and most companies dont do bottle deposits any more, but if they do they are usually around £20 a bottle.
We proved the worth of the mixture when the boys did the 109" chassis a few years back, it was so much nicer to use, although having the big 250A MIG welder helped a lot in that respect.
We get full-size Coogar bottles from one of our metalbashers, we pay the rental and for the gas, but a big bottle lasts up to 2 years for what we do. Saves us having an account with Air Products.
Now we have the additional TIG unit we'll probably look at a second bottle, that or arrange a split feed from the existing one.
Peter
why would they patch with a thinner steel than original?
you need pure argon for tig as you need a active gas
i love the term metal basher
you need pure argon for tig as you need a active gas
i love the term metal basher