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Case Hardening

Pyscodog

Gold $$ Contributor
I have a Marlin 336 and just wondering how much it might cost to have the receiver case hardened. Ball park numbers are fine as I'm just having late night thoughts. LOL!
 
shortgrass said:
If that's an original Remington Rolling Block, it's made of low carbon steel, which CCH very well. Case hardening was/is the process to "toughen" the low carbon steel receiver. Is the Marlin 336 made of low carbon steel? Probably not.....
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You can get good colors at 900F, which would leave 4140 at 36HRC. So while it's not actually hardening, it's not hurting the temper either.
 
So after case hardening, it is no longer "original". Does this increase value or decrease value? I would be doing it mainly because I think it looks good one way or another. But again I'm just asking questions first.
 
Pyscodog said:
I have a Marlin 336 and just wondering how much it might cost to have the receiver case hardened. Ball park numbers are fine as I'm just having late night thoughts. LOL!
Click to expand...
If the rifle is a collector item you ruin it's value by altering it. The process only hardens the surface to a very shallow depth. I would consider it cosmetic and surves no practical purpose. I would worry about the heat warping the receiver. I guess it's OK if you want to spend the money.
 
shortgrass said:
If that's an original Remington Rolling Block, it's made of low carbon steel, which CCH very well. Case hardening was/is the process to "toughen" the low carbon steel receiver. Is the Marlin 336 made of low carbon steel? Probably not.....
Click to expand...
All 3 of my Rolling blocks are "old". My 1886 lever gun will have some case done to it after the stock is done.
 
Webster said:
If the rifle is a collector item you ruin it's value by altering it. The process only hardens the surface to a very shallow depth. I would consider it cosmetic and surves no practical purpose. I would worry about the heat warping the receiver. I guess it's OK if you want to spend the money.
Click to expand...
CCH DOES serve a purpose! And, it served a purpose for centuries! It surface hardens, and depth of hardness can be controlled (+ or -) with temp and the length of time, and type of carbon rich media used . Mausers are case hardened, and look how long many of those have lasted. Case hardening give a hard surface to reduce wear. Older SxS shotguns receivers are case hardened. Some harder than the "hubs". CCH was not about the colors, it was about hardening the surface of low carbon steels, which were in wide use on firearms in the past. Now days, it's about the colors the process can produce. In the past, on some high grade guns, the colors were polished away. Many parts today are still case hardened by "carburizing". Many heat treating firms offer case hardening (carburizing). When CCH intricate parts (like some receivers), "blockage" is made to fit the places where warping might occur during quench. On another note, I can't see a Marlin 336 being "collectable", as millions were made , even before Cerberus Capital acquired Marlin and wrecked model.
 
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