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Newage®
Rockwell Hardness Testing Reference Guide

Product Data Sheet

PDS-HRCG-2010
March 2010

ASTM E18 contains a listing of all regular Rockwell scales and typical materials for which these scales are applicable. Use these tables in selecting the
scale that is appropriate for your application.



Scale
Symbol



B


C


Typical Application
Copper alloys, soft steel aluminum alloys, mallable iron, etc.
Steel, hard cast irons, pearlitic malleable iron, titanium,
deep case-hardened steel and other materials harder than B 100



A

Cemented carbides, thin steel and shallow case-hardened steel



D

Thin steel and medium case-hardened steel and pearlitic malleable iron



E

Cast iron, aluminum and magnesium alloys, bearing metal



F

Annealed copper alloys, thin soft sheet metals




G


Phosphor bronze, beryllium copper, malleable irons, upper limit G 92
to avoid possible flattening of ball



H

Aluminum, zinc lead




K, L, M, P
R, S, V

Bearing metals and other very soft or thin materials including plastics.
Use smallest ball and heaviest load that prevent an “anvil effect”




Scale
Symbol

Indenter

Load (kgf)

















A
B
C
D
E
F
G
H
K
L
M
P
R
S
V

Diamond
1/16” Ball
Diamond
Diamond
1/8” Ball
1/16” Ball
1/16” Ball
1/8” Ball
1/8” Ball
1/4” Ball
1/4” Ball
1/4” Ball
1/2” Ball
1/2” Ball
1/2” Ball

60
100
150
100
100
60
150
60
150
60
100
150
60
100
150

Regular Rockwell Testing
In this test method, the minor (preload) is always 10
kgf. The major load may be any of the following loads:
60 kgf, 100 kgf, or 150 kgf.



Scale
Symbol

Indenter

Load (kgf)

















15N
30N
45N
15T
30T
45T
15W
30W
45W
15X
30X
45X
15Y
30Y
45Y

N Diamond
N Diamond
N...

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<http://parimatch-stavka7.com/free-essays/Shear-Force-759577.html>

APA Citation

Shear Force. Anti Essays. Retrieved December 10, 2018, from the World Wide Web: http://parimatch-stavka7.com/free-essays/Shear-Force-759577.html


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