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Rockwell Hardness Tester/Rockwell Hardness Scales/Metal Hardness Testers
Shipped directly from PHASE II+ in NJ, USA
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 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
| Model No. 900-331 | |
| 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. |
Included 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
Optional Accessories
- NIST/ASTM certified hardness test blocks, penetrators and kits are available.
Rockwell Hardness Tester Scale/Indentor/Load 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) | Bearing Metals and other very soft or thin materials. Use smallest ball and heaviest load that doesn’t give anvil effect. |
| 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) |
HARNDESS TESTING RESOURCES
- REBUILT INVENTORY W/ FULL WARRANTY
- PHASE II WARRANTY CARD
- PHASE II SAMPLE EVALUATION SHEETS
- HARDNESS TESTER CONVERSION CHART
- PRINCIPLE OF ROCKWELL HARDNESS TESTING
- ROUNDNESS CORRECTION CHART FOR HARNDESS TESTING
- PORTABLE HARDNESS TESTERS
- MINIMUM THICKNESS CHART FOR ROCKWELL HARDNESS TESTING
- ROCKWELL HARDNESS SCALE INDENTOR LOAD CHART
- NIST LINKS
- NIST SCALE HISTORY
- ASTM LINKS