Rockwell Hardness Tester Instructions
Rockwell User Manual Rss Exempt English And French Translation
For Use With Ames Standard Hardness Testers
Rockwell International was a major American manufacturing conglomerate in the latter half of the 20th century, involved in aircraft, the space industry, both defense-oriented and commercial electronics, automotive and truck components, printing presses, power tools, valves and meters, and industrial automation.Rockwell ultimately became a group of companies founded by Colonel Willard Rockwell.
SCALE | Major Load(kg) | Penetrator Type | Dial Color | Use Barrel | Typical Materials |
---|---|---|---|---|---|
A | 60 | C Diamond | Black | C | Extremely hard materials, Tungsten Carbide thin steel and low hardened steel |
B | 100 | 1/16 Ball | Red | B | Medium hard materials, Low and medium Carbon steels, brass, aluminum Alloys, malleable iron, etc. |
C | 150 | C Diamond | Black | C | Hardened steels, hardened and tempered alloys, hard cast iron, pearlitic malleable iron, titanium, and other materials harder than B100 |
D | 100 | C Diamond | Black | C | Medium case hardened steel, thin steel, and pearlitic malleable iron |
E | 100 | 1/8 Ball | Red | B | Cast iron, Aluminum and magnesium alloy bearing metals |
F | 60 | 1/16 Ball | Red | B | Annealed brass and copper alloys, thin soft sheet metals |
G | 150 | 1/16 Ball | Red | B | Beryllum copper, phosphor bronze, malleable irons, etc. |
H | 60 | 1/8 Ball | Red | B | Aluminum sheet, zinc, lead |
K | 150 | 1/8 Ball | Red | B | Cast iron, aluminum alloys, bearing materials |
L | 60 | 1/4 Ball | Red | B | Plastics and soft metals such as lead, thin materials |
M | 100 | 1/4 Ball | Red | B | Same as L scale |
P | 150 | 1/4 Ball | Red | B | Same as L scale |
R | 60 | 1/2 Ball | Red | B | Same as L scale |
S | 100 | 1/2 Ball | Red | B | Same as L scale |
V | 150 | 1/2 Ball | Red | B | Same as L scale |
Ames Superficial Hardness Tester
Note: There is only one row of dial numbers for the Ames superficial tester.
Note: There is only one row of dial numbers for the Ames superficial tester.
SCALE | Major Load(kg) | Penetrator | Typical Material Tested |
---|---|---|---|
15N | 15 | S Diamond | Same materials as standard Rockwell except where shallow penetration is necessary as in: |
30N | 30 | S Diamond | - |
45N | 45 | S Diamond | - |
15T | 15 | 1/16 Ball | Shallow case hardened parts. To .010 inch |
30T | 30 | 1/16 Ball | - |
45T | 45 | 1/16 Ball | Hard thin material down to .006 inch |
15W | 15 | 1/8 Ball | - |
30W | 30 | 1/8 Ball | Cemented Carbides |
45W | 45 | 1/8 Ball | - |
15X | 15 | 1/4 Ball | Plastics |
30X | 30 | 1/4 Ball | - |
45X | 45 | 1/4 Ball | - |
15Y | 15 | 1/2 Ball | - |
30Y | 30 | 1/2 Ball | - |
45Y | 45 | 1/2 Ball | - |
Comparison Gage Chart
Gage Number | Thickness in decimals |
---|---|
8 | .171 |
10 | .140 |
12 | .109 |
14 | .078 |
16 | .062 |
18 | .050 |
20 | .037 |
22 | .031 |
View Out Thickness Chart
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