Rockwell Hardness Tester/Rockwell Hardness Scales/Metal Hardness Testers
Model No. 900-331
Features
- Works on all standard Rockwell Hardness Scales including HRA, HRBW, HRC, HRE, HRF among many others.
- Direct analog dial reading
- Advanced design, easy to operate
- Engineered to obtain highly sensitive and accurate readings
- Perfect for laboratories, workshops, tool rooms, inspection labs, etc.
Rockwell Hardness Tester Instructional/Operation Video
Rockwell Hardness Tester Setup/Installation Video
This hardness tester comprises the very best in “state of the art” design along with dynamic precision only found at Phase II. The 900-331 Rockwell hardness tester is easy to operate, yet engineered to obtain highly sensitive and accurate readings. Utilizing the guidelines of ASTM E-18, the 900-331 rockwell hardness tester will offer unmatched repeatability in all standard Rockwell Hardness scales (table shown below). A perfect, rugged performer suited for any environment including heat treat facilities, tool rooms, workshops, laboratories and inspection labs. Lifetime technical support is included on all Phase II Hardness Testers. So test away with confidence and a level of accuracy you will only find at Phase II.
For full conformance to the latest Rockwell Hardness Tester
E18-20 specification, please call (201) 962-7373
Features:
- Direct analog dial reading
- Advanced design, easy to operate
- Engineered to obtain highly sensitive and accurate readings
- Conforms to ASTM E-18
Specifications:
| Minor Load | 10Kgf |
|---|---|
| Major Load | 60Kgf, 100Kgf, 150Kgf |
| Test Force Application | Dead Weight |
| Test Force Control | Hydraulic Dashpot System |
| Results Display | Analog Dial Gage |
| Vertical Capacity | 6.7 in. |
| Throat Depth | 6.6 in. |
| Height | 30.0 in. |
| Width | 8.50 in. |
| Depth | 20.0 in. |
| Shipping Weight | 242 lbs. |
Accessories:
- C-scale Diamond Indento
- 1/16″ Ball Indentor
- 3- HRC Test Blocks
- 1- HRB Test Block
- Test Table 5.87″ (150mm)
- Flat Anvil 2.5″ (63mm)
- Std. Vee Anvil
- Accessory Case
- Dust Cover
Options:
- NIST/ASTM certified hardness test blocks, penetrators and kits are available.
Rockwell Hardness Tester Scale/Indentor/Load chart
| Scale Symbol | Indenter Type Ball dimensions indicate diameter |
Preliminary Force N (kgf)> | Total Force N (kgf) | Typical Application |
|---|---|---|---|---|
| A | Spheroconical Diamond | 98.07 (10) | 588.4 (60) | Cemented carbides, thin steel and shallow case hardened steel |
| B | Ball 1/16″ (1.588mm) | 98.07 (10) | 980.7 (100) | Copper alloys, soft steels, alum. Alloys, malleable iron, etc. |
| C | Spheroconical Diamond | 98.07 (10) | 1471 (150) | Steel, hard cast irons,pearltic malleable iron, titanium, deep case hardened steel & other material 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 | Ball – 1/8″ (3.175mm) | 98.07 (10) | 980.7 (100) | Cast iron, aluminum&magnesium alloys and bearing metals |
| F | Ball – 1/16″ (1.588mm) | 98.07 (10) | 588.4 (60) | Annealed copper alloys, and thin soft sheet metals |
| G | Ball – 1/16″ (1.588mm) | 98.07 (10) | 1471 (150) | Malleable irons, copper-nckel-zinc and cupronickel alloys |
| H | Ball – 1/8″ (3.175mm) | 98.07 (10) | 588.4 (60) | Aluminum, zinc and lead |
| K | Ball – 1/8″ (3.175mm) | 98.07 (10) | 1471 (150) | Bearing metals and other very soft or thin materials. Use smallest ball and heaviest load that does not give anvil effect |
| L | Ball – 1/4″ (6.350mm) | 98.07 (10) | 588.4 (60) | |
| M | Ball – 1/4″ (6.350mm) | 98.07 (10) | 980.7 (100) | |
| P | Ball – 1/4″ (6.350mm) | 98.07 (10) | 1471 (150) | |
| R | Ball – 1/2″ (12.70mm) | 98.07 (10) | 588.4 (60) | |
| S | Ball – 1/2″ (12.70mm) | 98.07 (10) | 980.7 (100) | |
| V | Ball – 1/2″ (12.70mm) | 98.07 (10) | 1471 (150) |