Oxide film hardness testing is a crucial process in material science, especially for metals that undergo surface passivation. This thin layer, also known as a passivation film, forms on the metal surface to prevent further oxidation and corrosion.
The selection of the right testing equipment is essential. For oxide films with thickness greater than or equal to 8 micrometers, the HV-1BM Oxide Film Hardness Testing System provides an accurate and reliable solution.
The system includes pre-processing steps such as cutting, embedding, and grinding, ensuring the sample is properly prepared for precise measurement. The main testing part involves using a microscopic Vickers hardness tester, which is ideal for measuring small and thin parts, including heat-treated materials, carbonized layers, and oxide films.

Sample preparation is a critical step in the process. Proper cutting, mosaic assembly, and grinding ensure the sample is ready for accurate hardness testing. Once the sample is ready, the HV-1BM system delivers precise results with its advanced features.

The HV-1BM Microscopic Vickers Hardness Tester is equipped with an LCD display screen, allowing users to select the desired test force (HV or HK) and adjust the light source brightness. It also supports direct input of D1 and D2 values through the eyepiece, making it easy to read the hardness value directly on the screen.
Technical Parameters:
Product Number | HV-1BM |
Test Force | 10gf (0.098N), 25gf (0.245N), 50gf (0.49N), 100gf (0.98N), 200gf (1.96N), 300gf (2.94N), 500gf (4.9N), 1kgf (9.8N) |
Minimum Test Unit | 0.25μm |
Data Output | LCD Display Readout |
Maximum Height of Test Piece | 80mm |
Indenter Center to Outer Wall Distance | 95mm |
XY Test Bench | Size: 100*100mm, Max Movement: 25*25mm |
Conversion Ruler | HRA, HRB, HRC, HRD, HRF, HV, HK, HBW, HR15N, HR30N, HR45N, HR15T, HR30T, HR45T |
Hardness Test Range | 8~2900HV |
Test Force Application Method | Automatic (loading, holding, unloading) |
Test Microscope Magnification | 400X (test), 100X (observation) |
Test Force Holding Time | 0~60s |
Power Supply | AC220V+5%, 50-60Hz |
Dimensions | 405*290*480mm |
Host Weight | About 25Kg |
Accessories Included:
Weight Shaft | 1 |
Weights | 6 |
Cross Test Bench | 1 |
Sheet Holding Table | 1 |
Flat Mouth Clamping Table | 1 |
Filament Clamping Table | 1 |
Screwdriver | 2 |
Adjustment Screw | 1 |
Small Level | 1 |
10X Test Eyepiece | 1 |
Micro Vickers Hardness Block (High Block, Low Block) | 1 each |
Spare Fuse (2A) | 1 |
Power Cable | 1 |
Product Certification | 1 copy |
Instruction Manual | 1 copy |
For more information or assistance, please contact Shanghai Junzhun Instrument Equipment Co., Ltd. Their team can provide detailed guidance and support for all your oxide film hardness testing needs.
Shenzhen Kaixuanye Technology Co., Ltd. , https://www.icoilne.com