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21 Industrial Ave.
Upper Saddle River, NJ 07458
Phone: 201-962-7373
Toll Free: 800-526-9087
Fax: 201-962-8353

 
 
DIGITAL HARDNESS TESTER
   
  

Model No. 900-331D

This "NEW" hardness tester combines our best selling 900-331 rockwell hardness tester with our new 9500 series digital indicator upgrade. This brilliant combination gives you the very best functions of a digital Rockwell hardness tester yet has the ease of use of our analog hardness testers. Conforming to ASTM E-18 Rockwell Hardness tester standards, the 900-331D 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.

Features: Model No. 900-331D Rockwell Hardness Testers
  • Direct Digital Reading
  • Automatic conversions to Brinell, Vickers, etc.
  • Advanced design, easy to operate
  • Engineered to obtain highly sensitive and accurate readings
  • Conforms to ASTM E-18 Perfect for laboratories, workshops, tool rooms, inspection labs, etc.

Specifications:

Minor Load 10Kgf
Major Load 60Kgf, 100Kgf, 150Kgf
Test Force Application Dead Weight
Test Force Control Hydraulic Dashpot System
Results Display Digital LCD
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 Indentor
  • 1/16" Ball Indentor
  • 3- HRC Test Blocks
  • 1- HRB Test Block
  • 1-HRA Test Block
  • Test Table 5.87" (150mm)
  • Flat Anvil 2.5" (63mm)
  • Spot Anvil .38: (10mm)
  • Std. Vee Anvil
  • Accessory Case
  • Dust Cover
 
rockwell hardness tester phase II precision analog
 
 
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)

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