154CM - Development, Properties, and Legacy

Larrin

Larrin

Gold Member
Joined
Jan 17, 2004
Messages
5,111
New article on 154CM, this one was very interesting as I was able to solve a couple of mysteries I had always wondered about. And there were a couple misconceptions I had about other things related to its history and properties.

Why are 154CM and BG-42 so similar?
Does 154CM have superior properties to 440C?
Was 154CM designed for turbine blades?
What does the "CM" stand for?

http://knifesteelnerds.com/2018/05/21/154cm-development-properties-legacy/
 
Interesting read.
I had the impression that Hitachi had developed ATS-34 and then Crucible copied it as 154-CM. I see how early Crucible developed it now. Probably my misinterpretation was because Crucible didn't get the QC down on it until the 90's when we saw it show up as a knife steel. I had always thought the CM was Crucible Metallurgy, as in CPM.

Do you know the meaning of ATS from Hitachi. I would guess A??? T??(tool?) Steel, as in YSS = Yasugi Specialty Steel.
 
Last edited:
Thank you Larrin for yet another well written and supported article. Very informative. Wish I could remember all this stuff.
 
i4Marc said:
Thank you Larrin for yet another well written and supported article. Very informative. Wish I could remember all this stuff.
Click to expand...
Why do you think I'm writing it down? Now I have a record of all the things I've forgotten.
 
Larrin thanks a lot! a lot of tecnical informations in a lot of history. I also knew that the ATS34 had been done before 154CM.
 
A fairly comprehensive study was done on the 14-4 family of steels, and 440C, 52100. in the early 60s by
Climax Molebdenum
 
Russ Andrews said:
A fairly comprehensive study was done on the 14-4 family of steels, and 440C, 52100. in the early 60s by
Climax Molebdenum
Click to expand...
Yeah I tried to get it but Climax Molybdenum said it wasn’t in their archives and the Interlibrary loan service told me it would be $50 through the British library.
 
Hmmm, I posted this yesterday at 11AM????? Don't know why it just showed up????


I just got off the phone with Tom Bell of Hitachi America.

ATS-34 is Aichi Tool Steel - 34. Aichi is the former name for Hitachi.

I also asked about getting the Hitachi #1 white and other steels in the USA. He said that I can order it in 2000 pound lots of one thickness.
 
Larrin said:
Yeah I tried to get it but Climax Molybdenum said it wasn’t in their archives and the Interlibrary loan service told me it would be $50 through the British library.
Click to expand...

If you feel that would benefit what you're doing Larrin I'll pay for it.
 
You must log in or register to reply here.
Back
Top