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Comparative Analysis of Mohs Hardness and Vickers Hardness of Tungsten Carbide
time：
2026-04-01 14:44
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Lizhou
Mohs hardness of tungsten carbide
The Vickers hardness of tungsten carbide is 9.0–9.5 Today, Lizhou Cemented Carbide will help you understand that in industrial machining, mining, and other fields, the hardness of tungsten carbide directly determines the service life of products. With years of dedicated expertise in tungsten carbide materials, Lizhou Cemented Carbide provides a comprehensive analysis of both Mohs hardness and Vickers hardness.
Table of Contents:
- What are the hardness levels of tungsten carbide?
- What is Mohs hardness?
- What is Vickers hardness?
- Comparative Analysis of Mohs Hardness and Vickers Hardness
- Common Questions About the Mohs Hardness of Tungsten Carbide
I. What are the hardness levels of tungsten carbide?
Tungsten carbide typically exhibits the following three levels of hardness:
- Mohs hardness
- Vickers hardness
- HRA/HRC
Lizhou Cemented Carbide can consistently achieve high hardness by controlling tungsten carbide grain size, cobalt content, and sintering parameters. + Its high toughness ensures excellent wear resistance and minimal chipping, making it suitable for a wide range of machining operations—from finish turning to rough turning.
II. What is Mohs hardness?
In the performance description of cemented carbides, Mohs hardness is both intuitive and widely used; Mohs hardness has 1-10 a hardness scale, where a higher number indicates greater hardness; typically, the Mohs hardness ranges from 9.0–9.5 Among them, its hardness is second only to that of diamond; the hardness of diamond is 10 , higher than that of alumina ceramic; the hardness of alumina ceramic is 9 , which is far higher than that of ordinary steel and stainless steel; the hardness of ordinary steel is 6-7 This is also why our cemented carbide cutting tools can machine materials such as steel and stainless steel.
How do we typically determine Mohs hardness?
The Mohs hardness scale essentially boils down to one criterion: whether a material can be scratched. If a material can be scratched, it means our product is harder than that material.
For example: steel cannot be scratched by tungsten carbide, whereas carbides can easily scratch steel, glass, and ceramic tiles; this simply indicates that cemented carbide materials are even harder—for instance, diamond. CBN If they can all scratch tungsten carbide, then diamond must be even harder.
III. What is Vickers hardness?
Vickers hardness is High Voltage indicates, for example, that the Vickers hardness of tungsten carbide is 2400HV , belongs to the super-hard materials tier, High Voltage The higher the value, the greater the resistance to deformation; the material is less likely to soften at high temperatures, resulting in a longer service life under cutting or stamping conditions. Lizhou tungsten carbide products are strengthened through fine-grain refinement, High Voltage Can be stably maintained at 2200-2600 The section exhibits high hardness and uniform cutting, with no soft padding and no brittle or fragile defects.
IV. Comparative Analysis of Mohs Hardness and Vickers Hardness
Comparison Item | Mohs hardness ( Mohs ) | Vickers hardness ( HV/Vickers ) |
Method of expression | 1-10 Level | Specific numbers (precise hardness) |
Test Principle | Scratch test | Indentation method |
Diamond | 10 | 10000 |
CBN | 9.0–10 | 4500-5000 |
Tungsten carbide ( Restroom ) | 9.0–9.5 | 3000 |
Aluminum oxide ceramic | 9.0 | 2100-2200 |
High-speed steel | 6.0–7.0 | 800-900 |
Applicable Scenarios | Selection and intuitive understanding | Production, between, precise comparison |
Advantages | Simple and easy to remember | Precision Science |
Disadvantages | Not precise enough | Large numerical values are not easy to understand quickly. |
V. Common Questions on the Mohs Hardness of Tungsten Carbide
Q1 : Why is the Mohs hardness of tungsten carbide 9.0–9.5 ？
A : Because tungsten carbide ( Restroom ) The crystal itself has extremely high hardness, close to that of diamond and slightly higher than alumina ceramic, so it remains stable at 9.0–9.5 between
Q2 : Is a higher Mohs hardness always better?
A No, excessive hardness makes materials brittle. LIZHOU cemented carbides achieve high hardness while maintaining toughness through optimized formulation, ensuring excellent wear resistance and preventing chipping or breakage of the cutting edge.
Q3 : How much harder is tungsten carbide than steel?
A : The Mohs hardness of steel is 6-7 Around, tungsten carbide is its 1.3 More than double; for nursing kittens, it can be dozens of times.
Q4 : What materials can grind tungsten carbide?
A : Only diamond and CBN The grinding wheel—this, too, is proof of tungsten carbide’s wear resistance.
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