High Strength, Heat Treated Alloys - General Machining Data (Kromite#3 /
and Mirraloy TGP)
Machining Data
Note: Caution should be exercised when cold working any hardened alloy
material. Use equipment of sufficient capacity that is in good condition.
Utilize machine operators that are experienced in working with hardened alloys
and wear appropriate safety gear.
Kromite #3 is a heat treated alloy material, Furnished with an approximate
hardness of Rockwell "C" 30. It is a product of the 4000 series of Ultra High
Strength Alloys. Machinability rating is approximately 60%, depending on actual
hardness.
High Speed
| • Depth of Cut
|
.150" |
| • Speed |
70fpm |
| • Feed |
.015 inch/revolution |
| • Tooling |
C6 |
Carbide
| • Depth of Cut |
.150" |
| • Speed |
260 brazed, 330 Throw-away |
| • Feed |
.015 inch/revolution |
| • Tooling |
C6 |
(Cutting Fluid: Soluble Oil 1:20)
Drilling
| • Point Angle |
118 degree, relief 12 degree |
| • Helix Angle |
29 degree, point: plan |
| • Feed |
.005 inch/revolution |
|
