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Description
Rockwell/Superficial Rockwell Hardness Testers/Hardness Testers/Automatic Hardness Testers
New! Digital Rockwell/Superficial Rockwell Hard Tester
Model No. 900-475 is a newly designed fully automated digital Rockwell hardness tester.
Applications:
-
Suitable to determine the Rockwell hardness of ferrous, non-ferrous metals, and non-metal materials.
-
Quality control for metal heat treatment, material inspection, welding evaluations, production
evaluations involving alloys, Grade verification for hard plastics, and failure analysis. - Especially suitable for the precise measurement of flat surfaces as well as a curved surface.
Features:
- Test force closed-loop control;
- Automatic tracking and testing, no test error caused by deformation of frame and/or workpiece.
- LED lighted measuring head can move up and down and automatically applies preliminary test force
- Conversions based upon material per ASTM E140-12b (2019)
- Round part correction factor
- High accuracy optical grating displacement measuring system
- Large test table, which is suitable for testing of abnormal shapes and heavy workpieces.
- Large LCD display, menu operation, complete functions (data processing, hardness conversion between different hardnes scales etc.).
- Bluetooth data interface
- Includes external wireless mini printer
- 36 • Precision conforms to guidelines set by ASTM E18, GB/T 230.2, and ISO 65
Capable Of Testing In All Rockwell/superficial Rockwell Hardness Scales
Touch The Start Symbol On The Display
Direct Loading Method With Load-cell Instead Of Dead Weight System
High Speed Test Cycle And Extremely Accurate Loading Control
Automatic conversions to Rockwell, Superficial Rockwell, Brinell (HB) and Vickers (HV) Hardness Scales
Touch Screen selectable system
Upper/Lower Limit Settings
Main Technical Parameter
Hardness Scales
HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK, HRL, HRM, HRP, HRR, HRS, HRV, HR15N, HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X, HR30X, HR45X, HR15Y, HR30Y, HR45Y
Included Accessories:
- C/N diamond penetrator
- 1/16” Carbide Ball Indenter
- 6pc NIST/ASTM Certified Test Blocks
- 3- HRC Test Blocks
- 1- HRB Test Block
- 1-HRN Test Block
- Dust Cover
- Small round flat anvil
- V-Anvil
Rockwell Hardness & Superficial 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) | 980.7 (150) | |
| 15N | Spheroconical Diamond | 29.42 (3) | 147.1 (15) | Similar to A, C and D scales but for thinner gage material. |
| 30N | Spheroconical Diamond | 29.42 (3) | 294.2 (30) | |
| 45N | Spheroconical Diamond | 29.42 (3) | 441.3 (45) | |
| 15T | 1/16” Carbide Ball | 29.42 (3) | 147.1 (15) | Similar to B, F and G scales but for thinner gage material. |
| 30T | 1/16” Carbide Ball | 29.42 (3) | 294.2 (30) | |
| 45T | 1/16” Carbide Ball | 29.42 (3) | 441.3 (45) | |
| 15W | 1/8” Carbide Ball | 29.42 (3) | 147.1 (15) | Very Soft Material |
| 30W | 1/8” Carbide Ball | 29.42 (3) | 294.2 (30) | |
| 45W | 1/8” Carbide Ball | 29.42 (3) | 441.3 (45) | |
| 15X | ¼” Carbide Ball | 29.42 (3) | 147.1 (15) | |
| 30X | ¼” Carbide Ball | 29.42 (3) | 294.2 (30) | |
| 45X | ¼” Carbide Ball | 29.42 (3) | 441.3 (45) | |
| 15Y | ½” Carbide Ball | 29.42 (3) | 147.1 (15) | |
| 30Y | ½” Carbide Ball | 29.42 (3) | 294.2 (30) | |
| 45Y | ½” Carbide Ball | 29.42 (3) | 441.3 (45) |
OPTIONS:
- NIST/ASTM certified hardness test blocks, penetrators and kits are available.
- This model is available with ASTM E18-20 certification
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