Project of the Month built by gbritnell

Help Support Home Model Engine Machinist by donating using the link above or becoming a Supporting Member.
Home Model Engine Machinist > The Tools and Tips > Metals > what is monel metal

Reply
 
Thread Tools
Old 11-27-2015, 08:23 PM   #1
werowance
 
Join Date: Sep 2011
Posts: 229
Liked 66 Times on 36 Posts
Likes Given: 3

Default what is monel metal

hello everyone, I decided to try my hand at making a trench style cigarette lighter out of a popular science magazine from the 50's and have a few questions.

1. it recommends monel metal. what is that? what would be a good substitute? im trying brass without much success
2. on the flint tube, I must tap the inside to #10 x cant remember the threads. and cut the outside to 3/16 by cant remember the number of threads. sorry im at work and don't have the plans here. but with brass I snap the tube off every time cutting the outside. I have even increased the outside from 3/16 to a 5 mm thread still witout luck. so was wondering if there would be a trick such as annealing the brass first or something. or if I just need to find monel metal.

thanks much.
Bryan


werowance is offline  
 
Reply With Quote
Old 11-27-2015, 09:23 PM   #2
james_III
HMEM_SUPPORTER.png
 
Join Date: Feb 2014
Posts: 41
Liked 6 Times on 5 Posts
Likes Given: 43

Default

Monel metal http://en.wikipedia.org/wiki/Monel But where it is actually used, I have no idea


james_III is offline  
 
Reply With Quote
Old 11-27-2015, 09:33 PM   #3
bazmak
BAZMAK
HMEM_SUPPORTER.png
 
bazmak's Avatar
 
Join Date: Dec 2012
Location: adelaide south australia
Posts: 1,792
Liked 939 Times on 543 Posts
Likes Given: 754

Default

Monel metals are alloys in the family of stainless steels.316 would be an adequate substitute for what you are doing.Easy to btain and work
bazmak is offline  
 
Reply With Quote
Old 11-27-2015, 10:02 PM   #4
werowance
 
Join Date: Sep 2011
Posts: 229
Liked 66 Times on 36 Posts
Likes Given: 3

Default

ah, great, I happen to have a stick of 316. just hope its big enough.

I figured it was going to be soft metal since most trench lighters are brass.

thank you very much.

have a great weekend and don't eat to many thanks giving left overs.

werowance is offline  
 
Reply With Quote
Old 11-27-2015, 10:10 PM   #5
10K Pete
 
Join Date: Jan 2009
Location: Nordland, WA, USA
Posts: 494
Liked 106 Times on 95 Posts
Likes Given: 172

Default

Monel is a high nickle alloy used in corrosive sea water situations. Most
larger metal dealers will have access to it although its us has been pretty
much been replaced by stainless steel as Monel has a lot of copper in it.

Pete
__________________
Just tryin'.....
10K Pete is offline  
 
Reply With Quote
Old 11-27-2015, 11:53 PM   #6
Charles Lamont
 
Join Date: Mar 2011
Location: UK
Posts: 430
Liked 98 Times on 72 Posts
Likes Given: 14

Default

Monel comes in various grades, but they are all roughly 1/3 copper & 2/3 nickel, with very small amounts of other stuff. The main use in model and to a greater extent full size steam engines is as firebox stays in locomotive type boilers.
Charles Lamont is offline  
 
Reply With Quote
Old 11-28-2015, 01:14 AM   #7
Mark Rand
HMEM_SUPPORTER.png
 
Join Date: Jul 2011
Location: Rugby, Warwickshire, England
Posts: 24
Liked 7 Times on 5 Posts

Default

It is/was also used for brake pipes in cars when you didn't want them to rust through in a few years.Very good in that application.
Mark Rand is offline  
 
Reply With Quote
Old 11-28-2015, 01:52 AM   #8
Cogsy
 
Cogsy's Avatar
 
Join Date: Jul 2012
Location: Perth, Western Australia
Posts: 1,734
Liked 448 Times on 347 Posts
Likes Given: 438

Default

Quote:
Originally Posted by werowance View Post
but with brass I snap the tube off every time cutting the outside.
Just a thought - is it possible to cut the outside thread while it is still solid, then drill and tap the internal thread after? If you can do it in that order you have a better chance of the part staying in one piece.
__________________
Al.
______________________
I'd like to be a perfectionist, but I lack the patience...not to mention the skill...
Cogsy is offline  
 
Reply With Quote
Old 11-28-2015, 10:13 PM   #9
tornitore45
HMEM_LIFETIMESUPPORTER.png
 
Join Date: Jan 2009
Posts: 428
Liked 72 Times on 59 Posts
Likes Given: 22

Default

Am I missing something?

#10 major diameter = 0.190 regardless of TPI
3/16 major diameter = 0.188

How can you have a pipe threaded inside and outside with those two dimensions?

The result is nothing but disconnected metal dust particles
__________________
Mauro
Austin, TX
USA
tornitore45 is offline  
 
Reply With Quote
Old 11-29-2015, 01:02 AM   #10
Tin Falcon
HMEM_LIFETIMESUPPORTER.png
 
Tin Falcon's Avatar
 
Join Date: Jul 2007
Location: down Jersey USA
Posts: 7,212
Liked 813 Times on 647 Posts
Likes Given: 18

Default

Hastelloy and inconel are similar High nickel alloys
Tin


__________________
Ad maiorem dei gloriam - Ad vitam paramus
Amat victoria praeparatio diligens
Tin Falcon is offline  
 
Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
New kind of metal Mosey The Break Room 1 07-30-2012 10:01 PM
Metal storage Omnimill Tips and Tricks 8 10-27-2010 09:36 PM
Metal Bender cfellows Tools 7 04-24-2009 07:21 PM
Monel Metal citizen004 Metals 7 02-16-2009 11:01 AM
Preventing damage by metal on metal Bogstandard Tips and Tricks 7 05-02-2008 04:45 PM



Newest Threads






- Top - Member List