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ROCKWELL SUPERFICIAL
HARDNESS TESTER

Model No. 900-345

Just like our Phase II analog Rockwell Hardness Tester, the 900-345 Superficial Rockwell Hardness Tester comprises "state of the art" design and dynamic precision only found at Phase II. Used for testing thin and soft material in the Superficial Rockwell Hardness scales, this hardness tester is ruggedly engineered to obtain highly sensitive and accurate readings. Conforming to ASTM E-18 Superficial Rockwell Hardness standards, this hardness tester will offer unmatched repeatability in all Superficial Rockwell Hardness scales (table shown below). A perfect performer suited for any environment including heat treat facilities, tool rooms, workshops, laboratories and inspection labs. Lifetime technical support is included with all Phase II Hardness Testers. So test away with confidence and a level of accuracy you will only find at Phase II.

superficial rockwell hardness tester
Features:
  • Direct analog dial reading
  • Engineered to obtain highly sensitive and accurate readings
  • Conforms to ASTM E-18
  • Perfect for laboratories, workshops, tool rooms, inspection labs, etc.
  • For testing thin, soft material in the Superficial Rockwell scales (900-345)
Specifications:

Minor Load

10 Kgf

Major Load 15 Kgf, 30 Kgf, 45 Kgf
Test Force Application Dead Weight
Test Force Control Manual
Results Display Analog Dial Gage
Vertical Capacity 6.7 in.
Throat Depth 6.6 in.
Height 28 in.
Width 8.9 in.
Depth 19.6 in.
Shipping Weight 190 lbs

Accessories:
  • N-scale Diamond Indentor
  • 1/16" Steel Ball Indentor
  • 3- HRN Test Blocks
  • 3-HRT Test Blocks
  • Test Table 5.87" (150mm)
  • Flat Anvil 2.5" (63mm)
  • Spot Anvil .38" (10mm)
  • Std. Vee Anvil
  • Accessory Case
  • Dust Cover

Options:

Scale Symbol

Indenter Type
Ball dimensions indicate diameter

Preliminary Force
N (kgf)
Total Force
N (kgf)
Typical Application
15N Spheroconical Diamond 29.42 (3) 147.1 (15) Similar to A,C and D scales, but for thinner gage material or case depth
30N Spheroconical Diamond 29.42 (3) 294.2(30)
45N Spheroconical Diamond 29.42 (3) 441.3(45)
15T Ball - 1/16" (1.588mm) 29.42 (3) 147.1 (15) Similar to B,F and G scales but for thinner gage materials
30T Ball - 1/16" (1.588mm) 29.42 (3) 294.2(30)
45T Ball - 1/16" (1.588mm) 29.42 (3) 441.3(45)
15W Ball - 1/8" (3.175mm) 29.42 (3) 147.1 (15) Very soft material
30W Ball - 1/8" (3.175mm) 29.42 (3) 294.2(30)
45W Ball - 1/8" (3.175mm) 29.42 (3) 441.3(45)
15X Ball - 1/4" (6.350mm) 29.42 (3) 147.1 (15)
30X Ball - 1/4" (6.350mm) 29.42 (3) 294.2(30)
45X Ball - 1/4" (6.350mm) 29.42 (3) 441.3(45)
15Y Ball - 1/2"(12.70mm) 29.42 (3) 147.1 (15)
30Y Ball - 1/2"(12.70mm) 29.42 (3) 294.2(30)
45Y Ball - 1/2"(12.70mm) 29.42 (3) 441.3(45)

HARDNESS TESTER RESOURCES
Hardness Tester Accessories Portable Hardness Testers
Hardness Tester Block Certification Minimum Thickness Chart for Rockwell Hardness Testing
Rebuilt Inventory with Full Warranty Rockwell Hardness Scale Indentor Load Chart
Hardness Tester Conversion Chart Hardness Setup:
  • 900-331
  • Principle of Rockwell Hardness Testing NIST Links
    Roundness Correction Chart for Hardness Testing ASTM Links
    HARDNESS TESTER LINKS