Material Hardness is one of the key indicators used to evaluate a material's resistance to deformation, wear, and abrasion. Common hardness standards include Vickers Hardness (HV), Brinell Hardness (HB), and Rockwell Hardness (HRC).
Material Hardness is one of the key indicators used to evaluate a material’s resistance to deformation, wear, and abrasion. Common hardness standards include Vickers Hardness (HV), Brinell Hardness (HB), and Rockwell Hardness (HRC). To facilitate the conversion of Material Hardness values under different standards, it is essential to understand the relevant conversion models and practical reference tables.
Material hardness test
Below is a reference table summarizing the approximate values of HV, HB, and HRC based on experimental data and standard specifications:
HV (Vickers Hardness) | HB (Brinell Hardness) | HRC (Rockwell Hardness) |
---|---|---|
100 | 94 | – |
200 | 190 | 15 |
300 | 285 | 30 |
400 | 380 | 40 |
500 | 475 | 50 |
600 | 570 | 58 |
700 | 665 | 63 |
Note: The above values may vary slightly depending on material type and testing conditions.
The conversion between different Material Hardness scales (HV, HB, HRC) does not have an exact formula, as they are based on different testing methods and principles. However, they can often be estimated using empirical formulas and conversion tables. Here are some common conversion relationships between hardness scales:
For materials like steel, the following empirical formulas are commonly used for conversion:
HB=0.927×HVHB = 0.927 \times HV HV=1.15×HBHV = 1.15 \times HB
For materials like steel, the following formula is commonly used for conversion:
HRC=0.0023×HV−1.9HRC = 0.0023 \times HV – 1.9
Alternatively, Material Hardness conversion tables are often used, especially for materials with a wide hardness range.
Sometimes, the following formula can be used for approximate conversion:
HRC=0.002×HB−1.2HRC = 0.002 \times HB – 1.2
Understanding the conversion relationships and quantitative calculations for material hardness is crucial for quality control and material selection in modern industry. Accurate Material Hardness value references and calculations can improve product reliability and optimize costs. If necessary, further customized reference tables can be developed based on specific materials and experimental setups.
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