Question about machining Nichroloy

gear cutter · Oct 23, 2014

Has anyone worked with Nichroloy? If so, what can you tell me about it. How does it machine? Will I need to get special tooling? I have never worked with it and I do not want to learn anything about it the hard way right now if I can avoid it. The job in question is machining a 12' shaft 4.5" O.D. A 2.999 journal on each end and turn one end to 3.875 O.D. 90" in length. Two keyways, one at each end.

Rich L · Oct 23, 2014

Just looked it up and found three varieties:
Ni Cr Fe Mn
75 16 8 3
40 7 50 3
23 20 50 1

You may have something in between and it seems to be difficult to find out exactly what Baldwin is putting in it (if you got it from them). They seem to be a bit obtuse about revealing composition.

Would say it surely depends on which one you have. My reference says the cast variety is the third one.

Rich

Tonytn36 · Oct 23, 2014

Rich L said:
Just looked it up and found three varieties:
Ni Cr Fe Mn
75 16 8 3
40 7 50 3
23 20 50 1

You may have something in between and it seems to be difficult to find out exactly what Baldwin is putting in it (if you got it from them). They seem to be a bit obtuse about revealing composition.

Would say it surely depends on which one you have. My reference says the cast variety is the third one.

Rich

None of those are going to be fun.... especially that first one.

Limy Sami · Oct 23, 2014

Tonytn36 said:
None of those are going to be fun.... especially that first one.

X 2, with all that Nickel and Chrome, it's gonna be nasty.

Sounds kinda $$$$$$$$$$$$$$$$ to screw up as well :eek:

sable · Oct 23, 2014

At least you haven't got to tap it.

Is there any chance of getting hold of a small piece to play around with?

18my · Oct 23, 2014

Lol you'll be right. Someone would make specific tooling if you dug deep enough. A challenge is always good fun, I usually flip out when I get these jobs and then once I'm finished I wonder why I was ever worried lol.

gbent · Oct 23, 2014

The following is copied from Baldwin's website:

"The Accurloy/Nichroloy
product group is a derivative
of the filed–proven
base metals of the 41XX
and the 43XX series of
ultra–high strength alloys."

That doesn't sound anything like the compositions that Rich L posted. Baldwin's description suggests it will turn like 4130 PHT.

Rich L · Oct 23, 2014

gbent said:
The following is copied from Baldwin's website:

"The Accurloy/Nichroloy
product group is a derivative
of the filed–proven
base metals of the 41XX
and the 43XX series of
ultra–high strength alloys."

That doesn't sound anything like the compositions that Rich L posted. Baldwin's description suggests it will turn like 4130 PHT.

I agree it doesn't sound like the stuff I found however "Ni -- chro -- loy" screams Nickel and Chromium. 41xx and 43xx are lightweights in Ni and Cr. I don't know, ... sales pitch by Baldwin?? Easy turning, no worries.

Cheers,
Rich

Search

Largest Manufacturing Technology Community on the Web

Search

Question about machining Nichroloy

gear cutter

Cast Iron

Rich L

Hot Rolled

Tonytn36

Diamond

Limy Sami

Diamond

sable

Titanium

18my

Cast Iron

gbent

Diamond

Rich L

Hot Rolled

Similar threads