HRC = Hardness, Rockwell C Scale
|
Diameter
|
% Cold-Worked
|
Yield Strength (ksi)
|
Hardness (HRC)
|
|
1" Below Surface
|
Mid-Radius
|
1" Below Surface
|
Mid-Radius
|
|
7.5
|
50
|
185.5
|
180.3
|
-
|
-
|
|
8
|
50
|
175.4
|
-
|
-
|
-
|
|
8.25
|
40
|
168.1
|
166.2
|
38.6
|
36.1
|
|
10
|
30
|
162.3
|
149.8
|
40.0
|
35.0
|
HRC= Hardness Rockwell "C"