How It's Made

The cyanide salt bath is upward of 1700 degrees fahrenheit and it produces a true case. However, it may be that the process shown is something other. Too bad they couldn't elaborate.
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It is different, although before seeing a youtube thing about CCH I'd have thought the temperatures you mentioned are closer than what I posted (1400-then down to 1100, then quench)
They pack the parts in special pots with bone and leather char, then bring that up to temperature and drop the contents into water with an air outlet at the bottom so it's bubbling. I've read that really fine case hardening brings the surface to a very high hardness while internally there is some conventional hardening for added strength, but mostly case hardening is done to 8620 and it is close to mild steel, 20 points carbon.

BTW, grip screws in original 1911's were case hardened to 60 RC, I tried to file one once, it ruined the file. Since reading the Kuhnhausen books I see that no one makes a 1911 the way they used to, and no, they are not better as far as heat treating goes IMO.
 
Well at least the show tried to inform the general public on what a machiene a revolver actually is and that it takes a lot of steps to build one from raw stock!
I think it was good in that respect and I appreciate the thought behind the production (it wasn't anti-gun!!!).
I appreciate any TV sho that promotes the shooting sports!
ZVP
 
It's canadian production, IIRC. They have put a lot of things on there that I recognized at the time as being something you would NEVER see on american televsion.
 
Yes to both of you

Z

It is gratifying to see the article done in a positive approach.

Brian,

Agree. Lot of the stuff is clearly not of U.S. manufacture.
 
I enjoy How It's Made but there are ALWAYS translation errors since it is written in French by copywriters who have a very abreviated summary of the process to work from. I'm sure translation error from Italian to French to English must be cumulative, especially since at times it seems it is more transliteration than tranlation. But really, how else would you know how pre-cooked bacon is made?
 
A narrator is just someone hired to read a script to go along with a finished film. They often don't even see the film before it is broadcast on television.
 
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