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Cutting Cast Iron Pipe #4673095
02/21/18 12:19 PM
02/21/18 12:19 PM
Joined: Feb 2009
Posts: 1,755
wv
krismoriah72 Offline OP
krismoriah72  Offline OP

Joined: Feb 2009
Posts: 1,755
wv
On my property there are several miles of abandoned natural gas pipe left over from the 50s and 60s. it is all unaccessable to electric and hauling cutting torches is not feasible. I want to cut it and make a fence for another part of my property.

I have come up with a few solutions.
1)Pipe Snapper- expensive, manual operation.
2)Cordless Sawzall- i probably wont get much done.
3)Cordless grinder with cutoff wheel..same as sawzall.
4)Small portable torches..bottles wont last long.

5) 2 stroke Concrete Saw with cutoff wheel.

Number 5 wasnt on my radar but i asked around and a few guys have done it.

I am trying to stay below $500 on this budget.. as of right now I found a couple of concrete saws that I can get for $400 to $500. I do also think that after the project i can sell the concrete saw for about $50 less than i paid for it..

Number 1 seems to be the safest bet but i would have to order it i think, and i doubt many people would buy it after i was done.

All in all I expect to make 300 or more cuts that would give me enough for my project.

What say you?

Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673114
02/21/18 12:31 PM
02/21/18 12:31 PM
Joined: May 2005
Posts: 2,309
Toronto, Canada
George7941 Offline
George7941  Offline

Joined: May 2005
Posts: 2,309
Toronto, Canada
The pipe snapper does not give you a very clean cut, if that matters for your project. You should be able to rent a concrete saw.


2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.
Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673115
02/21/18 12:32 PM
02/21/18 12:32 PM
Joined: Sep 2004
Posts: 8,011
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,011
Marshfield , MA
I've cut 1 1/2 cast iron steam heat pipes with a Sawzall. What diameter pipe? Is there a risk of a grass fire? Can you chop it into manageable lengths and haul it to where you cut it up efficiently?


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

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Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673118
02/21/18 12:32 PM
02/21/18 12:32 PM
Joined: May 2012
Posts: 4,659
Baltimore, Maryland, USA
zzyzzx Offline
zzyzzx  Offline

Joined: May 2012
Posts: 4,659
Baltimore, Maryland, USA
No electricity to use an angle grinder???

Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673149
02/21/18 12:55 PM
02/21/18 12:55 PM
Joined: Feb 2011
Posts: 2,071
California
Stelth Offline
Stelth  Offline

Joined: Feb 2011
Posts: 2,071
California
If itís gas pipe, itís probably not cast iron. If itís rally cast iron, scissor snaps would be the quickest. But itís probably steel, in which case the big cut-off saw would be prett hard to beat.


Experts are often wrong, but rarely in doubt.
Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673178
02/21/18 01:10 PM
02/21/18 01:10 PM
Joined: Jun 2002
Posts: 12,883
The Motor City
Kestas Offline
Global Moderator
Kestas  Offline
Global Moderator

Joined: Jun 2002
Posts: 12,883
The Motor City
I agree with Stelth. It's probably mot cast iron. Cast iron is easy to cut.

Consider hauling a generator to the site. Then you can use just about any power tool.

Re: Cutting Cast Iron Pipe [Re: Kestas] #4673185
02/21/18 01:22 PM
02/21/18 01:22 PM
Joined: Feb 2009
Posts: 1,755
wv
krismoriah72 Offline OP
krismoriah72  Offline OP

Joined: Feb 2009
Posts: 1,755
wv
Originally Posted By: Kestas
Consider hauling a generator to the site. Then you can use just about any power tool.

Dang that is a good idea.. i never thought of that because i have one of those wheelbarrow size champions but my buddy has one of the small ones about the same weight as the concrete saw. Not sure how cool he would be with me borrowing it and the cost to get the same as his, is about $500..but great idea.


Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673226
02/21/18 01:56 PM
02/21/18 01:56 PM
Joined: Mar 2017
Posts: 8,229
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,229
...
Since itís from the 50ís and 60ís, it could be cast iron or what was called black iron then. That would be brittle so a cutting saw is better. Snips will fracture rather than cut cleanly if they even cut at all. Hopefully the pipe is in good condition. Any rust through will make for a short life as fencing.


Cannot see signatures any longer so it doesn’t matter.
Re: Cutting Cast Iron Pipe [Re: PimTac] #4673249
02/21/18 02:13 PM
02/21/18 02:13 PM
Joined: Feb 2009
Posts: 1,755
wv
krismoriah72 Offline OP
krismoriah72  Offline OP

Joined: Feb 2009
Posts: 1,755
wv
Yes i would say its old black iron. I have two bridges made from it and my neighbor has one as well..i think a grinder with cutoff wheel which i already have..mated to an inverter generator which i kinda want anyways would be a good way to go about it.

Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673283
02/21/18 02:37 PM
02/21/18 02:37 PM
Joined: May 2003
Posts: 9,397
Central Coast, Calif.
tom slick Offline
tom slick  Offline

Joined: May 2003
Posts: 9,397
Central Coast, Calif.
Iíd use the concrete saw. Plenty of power and weight. Youíre going to fight with everything else to make cuts.


You get what you pay for...
So keep in mind how much you paid for this advice.
Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673309
02/21/18 02:51 PM
02/21/18 02:51 PM
Joined: Sep 2008
Posts: 9,249
Ontario, Canada
IndyIan Offline
IndyIan  Offline

Joined: Sep 2008
Posts: 9,249
Ontario, Canada
Whats the diameter? And how long are your pieces? Maybe a couple knicks with a cordless angle grinder and break it?


07 Focus ZXW, 5spd manual, 230km M1 5W30
18 Outback 2.5 CVT 22km 0W20
Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673321
02/21/18 02:59 PM
02/21/18 02:59 PM
Joined: Oct 2009
Posts: 4,030
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,030
Wet side WA
Several miles you have a hug piece of Property.


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Re: Cutting Cast Iron Pipe [Re: IndyIan] #4673326
02/21/18 03:04 PM
02/21/18 03:04 PM
Joined: Feb 2009
Posts: 1,755
wv
krismoriah72 Offline OP
krismoriah72  Offline OP

Joined: Feb 2009
Posts: 1,755
wv
3" pipe. Theres probably a few miles of it.

I have power outages where i live all the time so a small inverter generator will be used eventually..

I found a guy selling a husqvarna knockoff concrete saw for $200. He also has a Stihl for $400.

So i can either buy the stihl and resell when im done..or get an inverter and keep it.

On the cordless route those would lose alot of value if i bought new and sold afterward.

I dont need any of these tools other than the job at hand..except the inverter gen.

The stihl concrete saw weighs 23lb the small inverter generator weighs 50lb.

Most of the pipe is across creeks and small streams so i will cut into 5 ft sections and haul by hand to access roads.

Worst case scenario the recycling center is paying $12/100lb so if i dont like it theres money to be made.

Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673350
02/21/18 03:25 PM
02/21/18 03:25 PM
Joined: Dec 2006
Posts: 1,850
NY, NY
NYEngineer Offline
NYEngineer  Offline

Joined: Dec 2006
Posts: 1,850
NY, NY
I had to cut a cast iron vent pipe once when I was renovating a house. First cut was with a sawzall. That was insane. Second time, I borrowed a pipe snapper. Worked awesome. in and out.

Re: Cutting Cast Iron Pipe [Re: krismoriah72] #4673353
02/21/18 03:29 PM
02/21/18 03:29 PM
Joined: Aug 2007
Posts: 1,819
.
Michael_P Offline
Michael_P  Offline

Joined: Aug 2007
Posts: 1,819
.
Gas powered cut off saw with aluminum oxide wheel.

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