We have a track oxy/propane cutting torch that we fixed up and we need
to cut quite a few steel plates. I am thinking that it will take a
couple of days.

My guy says we need to do it outside to avoid making a mess of our
shop, with the dust and fumes.

My question is how true is that, does gas cutting generate a lot of
air borne dust?

i

Ignoramus16992 fired this volley in
:

My question is how true is that, does gas cutting generate a lot of
air borne dust?



A fair amount... most of it is coarse enough to fall to the floor within
a couple of feet of the cutting operation.

But what you don't know is what's in the steel. If it's alloy stuff,
besides the inoccuous red and black iron oxides that can result, there
can be toxic oxides of chromium, nickel, cadmium, and other nasties you
don't want in your lungs or settling on clean rust-free iron goods.

Good advice from your guys. Do it outside.

LLoyd

On 2013-05-05, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus16992 fired this volley in
:

My question is how true is that, does gas cutting generate a lot of
air borne dust?



A fair amount... most of it is coarse enough to fall to the floor within
a couple of feet of the cutting operation.

But what you don't know is what's in the steel. If it's alloy stuff,
besides the inoccuous red and black iron oxides that can result, there
can be toxic oxides of chromium, nickel, cadmium, and other nasties you
don't want in your lungs or settling on clean rust-free iron goods.

Good advice from your guys. Do it outside.

It is all A36 structural plate. Thanks for the advice, the weather
should be OK .

i

Remember most of our steel is from scrap. As you cut the A36 you might
find a pressed in bearing race or ball bearing. Scrap is scrap.
The scrap mills don't fire to the temp of high alloy but that of the
lessor steel to save money. I cut A36 and see it all the time.

Martin

On 5/5/2013 11:20 AM, Ignoramus16992 wrote:
On 2013-05-05, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus16992 fired this volley in
:

My question is how true is that, does gas cutting generate a lot of
air borne dust?



A fair amount... most of it is coarse enough to fall to the floor within
a couple of feet of the cutting operation.

But what you don't know is what's in the steel. If it's alloy stuff,
besides the inoccuous red and black iron oxides that can result, there
can be toxic oxides of chromium, nickel, cadmium, and other nasties you
don't want in your lungs or settling on clean rust-free iron goods.

Good advice from your guys. Do it outside.

It is all A36 structural plate. Thanks for the advice, the weather
should be OK .

i

Burning can also damage a concrete floor (or parking lot surface). Burning
some plates wouldn't be as bad as grinding a lot of rusty steel indoors.

--
WB
..........


"Ignoramus16992" wrote in message
...
We have a track oxy/propane cutting torch that we fixed up and we need
to cut quite a few steel plates. I am thinking that it will take a
couple of days.

My guy says we need to do it outside to avoid making a mess of our
shop, with the dust and fumes.

My question is how true is that, does gas cutting generate a lot of
air borne dust?

i

On 5/5/2013 10:07 PM, Martin Eastburn wrote:
Remember most of our steel is from scrap. As you cut the A36 you might
find a pressed in bearing race or ball bearing. Scrap is scrap.
The scrap mills don't fire to the temp of high alloy but that of the
lessor steel to save money. I cut A36 and see it all the time.

Martin

At a shop where I used to work, a Mazak machining center was milling a
4'x4'x6" plate when the tool died rather spectacularly. Upon inspection
of the plate, it was found to have a Nicholson file imbedded in it.

David

"David R. Birch" wrote:

On 5/5/2013 10:07 PM, Martin Eastburn wrote:
Remember most of our steel is from scrap. As you cut the A36 you might
find a pressed in bearing race or ball bearing. Scrap is scrap.
The scrap mills don't fire to the temp of high alloy but that of the
lessor steel to save money. I cut A36 and see it all the time.

Martin

At a shop where I used to work, a Mazak machining center was milling a
4'x4'x6" plate when the tool died rather spectacularly. Upon inspection
of the plate, it was found to have a Nicholson file imbedded in it.

David

I keep hearing stories like this, but no pictures are ever posted

"Pete C." fired this volley in news:51883731$0$4801
:

I keep hearing stories like this, but no pictures are ever posted

Heh! I just threw away a scrap of 3" 6061 someone had absolutely
_buried_ a 1-1/4" cutter into. It snapped off the shank like it was made
of butter... Sorry... no pictures AGAIN! G

(no... twern't me... my mill couldn't produce that torque with Viagra)

LLoyd

On 5/6/2013 6:05 PM, Pete C. wrote:

"David R. Birch" wrote:

On 5/5/2013 10:07 PM, Martin Eastburn wrote:
Remember most of our steel is from scrap. As you cut the A36 you might
find a pressed in bearing race or ball bearing. Scrap is scrap.
The scrap mills don't fire to the temp of high alloy but that of the
lessor steel to save money. I cut A36 and see it all the time.

Martin

At a shop where I used to work, a Mazak machining center was milling a
4'x4'x6" plate when the tool died rather spectacularly. Upon inspection
of the plate, it was found to have a Nicholson file imbedded in it.

David

I keep hearing stories like this, but no pictures are ever posted

I don't remember anyone taking pix. We just milled away enough of the
plate to expose the file's brand name. We left the file in the plate to
show to the vendor of the plate. The vendor also paid for the tool.

David

On Mon, 06 May 2013 16:32:17 -0500, "David R. Birch"
wrote:

On 5/5/2013 10:07 PM, Martin Eastburn wrote:
Remember most of our steel is from scrap. As you cut the A36 you might
find a pressed in bearing race or ball bearing. Scrap is scrap.
The scrap mills don't fire to the temp of high alloy but that of the
lessor steel to save money. I cut A36 and see it all the time.

Martin

At a shop where I used to work, a Mazak machining center was milling a
4'x4'x6" plate when the tool died rather spectacularly. Upon inspection
of the plate, it was found to have a Nicholson file imbedded in it.

David

OUCH!!

Id love to see a photo of that! And the expression on the steel
sellers face when the steel was shown to him


"The ruling class doesn't care about public safety. Having made it
very difficult for States and localities to police themselves, having
left ordinary citizens with no choice but to protect themselves as
best they can, they now try to take our guns away. In fact they blame
us and our guns for crime. This is so wrong that it cannot be an
honest mistake."
Malcolm Wallop
former U.S. Sen. (R-WY)