Starrett 3814 - Weight - Load - Indentor Chart; Scale Symbol and Indentor Type; Typical Applications by Scale

Operating Instructions & Parts Manual
Page 13
Weight - Load - Indentor Chart
Scale
Symbol
Indentor Type
Preliminary
Force
N (kgf)
Total
Force
N (kgf)
Typical Applications
A
Spheroconical
Diamond
98.07 (10)
588.4 (60)
Cemented carbides, thin steel, and
shallow case hardened steel
B
1/16” Carbide Ball
98.07 (10)
980.7 (100)
Copper alloys, soft steels, aluminum
alloys, malleable iron, etc.
C
Spheroconical
Diamond
98.07 (10)
1471 (150)
Steel, hard cast irons, pearlitic
malleable iron, titanium, deep case
hardened steel, other harder than
HRB 100
D
Spheroconical
Diamond
98.07 (10)
980.7 (100)
Thin steel and medium case
hardened steel, and pearlitic
malleable iron
E
1/8” Carbide Ball
98.07 (10)
980.7 (100)
Cast Iron, Aluminum and
magnesium alloys, and bearing
metals
F
1/16” Carbide Ball
98.07 (10)
588.4 (60)
Annealed copper alloys and thin
soft sheet metals
G
1/16” Carbide Ball
98.07 (10)
1471 (150)
Malleable irons, copper-nickel-zinc
and cupro-nickel alloys
H
1/8” Carbide Ball
98.07 (10)
588.4 (60)
Aluminum, zinc and lead
K
1/8” Carbide Ball
98.07 (10)
1471 (150)
L
¼” Carbide Ball
98.07 (10)
588.4 (60)
M
¼” Carbide Ball
98.07 (10)
980.7 (100)
P
¼” Carbide Ball
98.07 (10)
1471 (150)
R
½” Carbide Ball
98.07 (10)
588.4 (60)
S
½” Carbide ball
98.07 (10)
980.7 (100)
V
½” Carbide ball
98.07 (10)
1471 (150)
15N
Spheroconical
Diamond
29.42 (3)
147.1 (15)
30N
Spheroconical
Diamond
29.42 (3)
294.2 (30)
45N
Spheroconical
Diamond
29.42 (3)
441.3 (45)
15T
1/16” Carbide Ball
29.42 (3)
147.1 (15)
30T
1/16” Carbide Ball
29.42 (3)
294.2 (30)
45T
1/16” Carbide Ball
29.42 (3)
441.3 (45)
15W
1/8” Carbide Ball
29.42 (3)
147.1 (15)
30W
1/8” Carbide Ball
29.42 (3)
294.2 (30)
45W
1/8” Carbide Ball
29.42 (3)
441.3 (45)
15X
¼” Carbide Ball
29.42 (3)
147.1 (15)
30X
¼” Carbide Ball
29.42 (3)
294.2 (30)
45X
¼” Carbide Ball
29.42 (3)
441.3 (45)
15Y
½” Carbide Ball
29.42 (3)
147.1 (15)
30Y
½” Carbide Ball
29.42 (3)
294.2 (30)
45Y
½” Carbide Ball
29.42 (3)
441.3 (45)
Bearing Metals and other very
soft or thin materials. Use
smallest ball and heaviest load
that doesn’t give anvil effect.
Similar to A, C and D scales but
for thinner gage material.
Similar to B, F and G scales but
for thinner gage material.
Very Soft Material