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Old 01-30-2021, 08:56 AM
Liseo Liseo is offline
Join Date: Nov 2006
Posts: 34
Default Derimming die steel


I'm making some 224 bullets out of 22 lr cases.
But the derimming die insert is short-lived, has a lot of wear.
I'm thinking of making one, but I don't know which steel is more suitable, because I made a unit with silver steel(52100) and the useful life was short, because it had quick wear, even after doing the temper.

could someone give a tip?

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Old 01-30-2021, 12:38 PM
Hog Patrol Hog Patrol is offline
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Join Date: Sep 2011
Location: DE
Posts: 1,402

Do you have or have access to a heat treating oven/furnace? If so, A2 or O2.
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Old 02-11-2021, 11:02 AM
gunhaus gunhaus is offline
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Join Date: Sep 2006
Location: Lake City,Mich
Posts: 179

I have made these for a number of years with 0-1 or O-6 both give great life. Also, pre-cleaning spent cases with on of the SS pin systems can dramatically increase life as the cases get VERY clean with this process. This with the sufficient and even distribution of a good swage lube will really increase the life of the dies.
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Old 02-11-2021, 01:46 PM
TinMan TinMan is online now
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Join Date: Sep 2006
Posts: 2,579

As I recall, AISI 52100 is a bearing steel.
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