From Newsgroup: sci.engr.joining.welding


I dont know if there's any UK users on here, but I would be interested
to know what you do with discarded single use gas cylinders - the small
ones which you buy in places like Machine Mart ...


The guy in Machine Mart says that they just go in to "normal" landfill,
and the guy down at the local tip had no idea, but I would have thought
they can be recycled ?
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From Newsgroup: sci.engr.joining.welding

Commercially it's thought decent / almost-mandatory to make holes in
scrapped air cylinders and anything else which could explode violently
with rising temperature in a furnace if recycled.
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From Newsgroup: sci.engr.joining.welding

On 6/30/2022 1:55 AM, Richard Smith wrote:

Commercially it's thought decent / almost-mandatory to make holes in
scrapped air cylinders and anything else which could explode violently
with rising temperature in a furnace if recycled.

I use one of those small hand held torches occasionally . I also keep
a couple of the cylinders around and refill them from a 30 lb pre-OPD
tank . It's not illegal to refill them , but it IS illegal to transport
them if they have been refilled .
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From Newsgroup: sci.engr.joining.welding

Richard Smith <null@void.com> wrote:

Commercially it's thought decent / almost-mandatory to make holes in
scrapped air cylinders and anything else which could explode violently
with rising temperature in a furnace if recycled.

I'd think fuel gas cylinder are considered hazardous waste so long as
they're intact. Can't tell by looking that they're empty. But, I'm
from California 8-)

bob prohaska

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From Newsgroup: sci.engr.joining.welding

On 02/07/2022 03:18, bob prohaska wrote:

Richard Smith <null@void.com> wrote:

Commercially it's thought decent / almost-mandatory to make holes in
scrapped air cylinders and anything else which could explode violently
with rising temperature in a furnace if recycled.

I'd think fuel gas cylinder are considered hazardous waste so long as they're intact. Can't tell by looking that they're empty. But, I'm
from California 8-)

bob prohaska

I should have clarified in the OP that these are argon or CO2 cylinders
- but thanks anyway ...
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