Best method for cutting stainless steel? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > DIY Projects > Best method for cutting stainless steel?

Reply
 
Thread Tools
Old 12-09-2011, 10:42 PM   #1
Schnitzengiggle
 
Schnitzengiggle's Avatar
Recipes 
 
Feb 2009
Tucson, AZ
Posts: 2,560
Liked 31 Times on 23 Posts



I have a very small project that I am working on and I need to cut a piece of stainless tube (just 2 simple straight cuts). It is my understanding that when using a hacksaw, or any type of non stainless metal-to-stainless metal cutting, the stainless becomes contaminated with the other steel and can rust at that point.

So my question is do I cut with a hacksaw or sawzall, then clean up with sandpaper, or will a cutting disk on my miter saw be better?

FWIW, I don't have a miter saw cutting disk, so I will have to incur that cost if I want to do it that way (which would provide the cleanest most accurate cut I assume), but I have a hacksaw.

What would you do/suggest?
__________________
follow me @ Broken Glass Brewery

Okham's Razor - simplest explanation is usually the correct one.

My DIY Kegerator - My DIY Fermentation Chamber - My DIY Portable Pump Box

 
Reply With Quote
Old 12-09-2011, 10:59 PM   #2
DMartin
Recipes 
 
Jun 2010
Hagerstown, Maryland
Posts: 262
Liked 9 Times on 9 Posts


Bite it really hard.

 
Reply With Quote
Old 12-09-2011, 11:01 PM   #3
Schnitzengiggle
 
Schnitzengiggle's Avatar
Recipes 
 
Feb 2009
Tucson, AZ
Posts: 2,560
Liked 31 Times on 23 Posts


Quote:
Originally Posted by DMartin View Post
Bite it really hard.
Is that what you'd do, or is that what you suggest?
__________________
follow me @ Broken Glass Brewery

Okham's Razor - simplest explanation is usually the correct one.

My DIY Kegerator - My DIY Fermentation Chamber - My DIY Portable Pump Box

 
Reply With Quote
Old 12-09-2011, 11:10 PM   #4
bottlebomber
 
bottlebomber's Avatar
Recipes 
 
Apr 2011
Ukiah, CA
Posts: 14,342
Liked 2737 Times on 2112 Posts


As a machinist I would have to call BS on the "contamination" of the stainless steel. There's a chance if an inferior quality cutting tool was used that there may be some build-up on the cut surface that may oxidize, but that doesn't mean the stainless has changed. Stainless steel has high levels of nickel and chrome that make it less prone to oxidation. Having a little high speed steel rusting on its surface isn't going to change that. If you were worried you could hit it with a little sand paper, but you should probably do that anyway.

 
Reply With Quote
Old 12-09-2011, 11:28 PM   #5
Chrisl77
Recipes 
 
Mar 2011
Jackson, New Jersey
Posts: 890
Liked 86 Times on 68 Posts


How big diameter is the tubing? If its thin wall tubing you can just use a tubing cutter on it like the ones used for copper pipe. Just take your time and dont try to cut to much at one time.
__________________
Ocean County home brew club

 
Reply With Quote
Old 12-09-2011, 11:41 PM   #6
kevink
Recipes 
 
Jan 2010
PA
Posts: 723
Liked 99 Times on 68 Posts


I recommend just using the hacksaw. When you're done, take some 220 grit sandpaper, fold it up so it fits the slot snugly, and sand it. This will remove any material that the hacksaw may have deposited on the SS. That's the stuff that will rust later, not your stainless, so you want to get it off.

I used the same technique (I also used Scotch Brite on some stuff, but that wouldn't be appropriate for your application) for every cut that I made for my electric keggle and nothing has rusted yet, and it would have by now.

 
Reply With Quote
Old 12-09-2011, 11:59 PM   #7
Schnitzengiggle
 
Schnitzengiggle's Avatar
Recipes 
 
Feb 2009
Tucson, AZ
Posts: 2,560
Liked 31 Times on 23 Posts


Quote:
Originally Posted by bottlebomber View Post
As a machinist I would have to call BS on the "contamination" of the stainless steel. There's a chance if an inferior quality cutting tool was used that there may be some build-up on the cut surface that may oxidize, but that doesn't mean the stainless has changed. Stainless steel has high levels of nickel and chrome that make it less prone to oxidation. Having a little high speed steel rusting on its surface isn't going to change that. If you were worried you could hit it with a little sand paper, but you should probably do that anyway.
Yeah I understand that a little sandpaper, and a scrub with some BKF will more than likely remove any metal contaminant that may cause rust. Since this will be immersed in the beer, I want to make sure there aren't any corrosion issues from any contaminants.

I was wondering if a cutting disk would avoid any metal contamination, but then you run into the problem of overheating which is another can of worms.
__________________
follow me @ Broken Glass Brewery

Okham's Razor - simplest explanation is usually the correct one.

My DIY Kegerator - My DIY Fermentation Chamber - My DIY Portable Pump Box

 
Reply With Quote
Old 12-10-2011, 12:03 AM   #8
Schnitzengiggle
 
Schnitzengiggle's Avatar
Recipes 
 
Feb 2009
Tucson, AZ
Posts: 2,560
Liked 31 Times on 23 Posts


Quote:
Originally Posted by Chrisl77 View Post
How big diameter is the tubing? If its thin wall tubing you can just use a tubing cutter on it like the ones used for copper pipe. Just take your time and dont try to cut to much at one time.
It is a Sanke spear.
__________________
follow me @ Broken Glass Brewery

Okham's Razor - simplest explanation is usually the correct one.

My DIY Kegerator - My DIY Fermentation Chamber - My DIY Portable Pump Box

 
Reply With Quote
Old 12-10-2011, 12:06 AM   #9
kevink
Recipes 
 
Jan 2010
PA
Posts: 723
Liked 99 Times on 68 Posts


What exactly are you making to be concerned about overheating?

 
Reply With Quote
Old 12-10-2011, 12:11 AM   #10
Schnitzengiggle
 
Schnitzengiggle's Avatar
Recipes 
 
Feb 2009
Tucson, AZ
Posts: 2,560
Liked 31 Times on 23 Posts


I am making Randall.

I overheard Palmer on a Brew Strong podcast talking about stainless steel and cutting it and the potential hazards of contamination and overheating of the stainless when using certain methods to cut it.

Maybe I'll just take the spear to HD, open up a pipe cutter, cut it there and leave, lol.
__________________
follow me @ Broken Glass Brewery

Okham's Razor - simplest explanation is usually the correct one.

My DIY Kegerator - My DIY Fermentation Chamber - My DIY Portable Pump Box

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Stainless steel question baer19d Kettles, Mash Tuns & Hot Liquor Tanks 22 06-16-2011 05:05 AM
Cutting Diamond Plated Steel Sheets franklinswheat Kegerators & Keezers 1 02-05-2011 12:29 PM
Stainless Steel thenatibrewer Brew Stands 12 12-18-2010 06:06 AM
tools for cutting stainless steel enclosure for Control Box BucksPA Brew Stands 14 02-25-2010 01:51 AM
Cutting a perforated stainless steel false bottom? stoutaholic Kettles, Mash Tuns & Hot Liquor Tanks 10 07-24-2009 05:28 PM


Forum Jump