Chrome moly steel tanks

[Brian Gilpin]

I just bought a low pressure steel 95 made by Faber. It has a good viz and hydro so Im not worried about the condition. The previous owner told me it was a chrome moly tank. Does anybody know what that means? The tank was manufactured in 98 I believe.

 

[LUBOLD8431]

Thats the type of steel that the cylinder is made of. PST and Faber are both made of chrome molybdenum (sp?) steel. Maybe someone who knows a little more about steel will come along and explain it more.

 

[Drew Sailbum]

It's a "normal" steel cylinder. Chrome molybdenum steel is made to the 3AA DOT specification. You will find the 3AA designation stamped into the metal on the shoulder of the cylinder.

 

[pescador775]

The tanks are called chrome/molybdenum (3AA) to designate them as separate from other specs such as carbon steel (3A). Generally, chrome/molybdenum (and chrome vanadium) are heat treatable steels which can be drawn in the annealed state and can withstand higher pressures than carbon steel.

It's a "normal" steel cylinder. Chrome molybdenum steel is made to the 3AA DOT specification. You will find the 3AA designation stamped into the metal on the shoulder of the cylinder.

 

[Scottri]

chrome/molybdenum has been used in tanks for years and is pretty durable. I wouldn't worry about them. Just take care of them and they will last you forever. I've seen chrome/molybdenum tanks that are 40 years old and still in service.


Scott

 

[aquaoren]

chrome/molybdenum has been used in tanks for years and is pretty durable. I wouldn't worry about them. Just take care of them and they will last you forever. I've seen chrome/molybdenum tanks that are 40 years old and still in service.


Scott

I have 2x72s steel tanks from 1972.
Just came back from Hydro yesterday