Sure, I know about "ice box rivets," but do dive tanks come in that kind of
aluminum?

Roger (who does associate heat treatment with iron and copper)

http://home.insightbb.com/~derbyrm

"RW Salnick" wrote in message
...
'High Temperatures'? You must be thinking of iron, copper, etc.

Not aluminum. In fact there are many alloys which are room-temperature
heat treated.

bob
(refugee of both ALCOA and Kaiser Aluminum)


derbyrm wrote:
Got some numbers (temperatures) for this one? Without digging out the
data, my impression is that baking the paint happens at a few hundred
degrees F and heat treating at much higher temperatures.

Were the tanks pressurized when baked, or did they blow up later?

Roger

http://home.insightbb.com/~derbyrm

"Capt John" wrote in message
oups.com...

The only thing you have to look out for with powder coating is if the
metal is heat treated. If the metal was heat treated the baking part of
the powder coating process can cause big problems with the integrity of
the metal. This happened on several occasions to people who had scuba
tanks powder coated, they blew up. If their's no heat treating involved
it's probably not a problem.