what types of materials are capable of case hardening?

Question

Up to 0.50 depth to Rockwell-C 60-62?

I mean .050 depth. THANKS!

Answer 1

Below are details of two grades of steel which are case hardenable to a hardness of 60 to 62 Rc.
1. BS3100, Grade-AW1.
%C-0.10 TO 0.18, %Si-0.6 max, %Mn-0.6 to 1.0 %S&P-
0.05max.
2. ASTM A148, Grade- 80-50
%C-0.18 to 0.28, %Si-0.5max, %Mn-1.2 to1.6, %S&P-
0.05max
Surface hardness will depend on the efficiency of the heat treatment method adopted.
A maximum case depth of 5mm can be achieved by carburising at 1000C.

Answer 2

Only steel is capable of case hardening but you would have a hard time getting penetration of more than maybe 0.01 inch or 0.025 mm. It would be too difficult to get the carbon to precipitate any deeper than that.

Case hardened steel is usually formed by diffusing carbon and/or nitrogen into the outer layer of the steel at high temperature. The carbon combines with the steel to make it nearly glass-like in its hardness. The core of the metal stays soft. This gives you a piece of metal that you cannot cut with a saw, but also will not shatter.


[;-)

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Answer 3

U need to be more descriptive than that. Normally good steel bit 3/4 in diameter u may get a case hardening of 0.5 to me Menes .5 inches.