You are facing new steel grades every day. You often meet suppliers of abrasives claiming different hardness values, but no one is speaking the same language when it comes to hardness units. 
This common language is nevertheless essential to monitor your blasting process and to understand the materials you're working with. 
It's difficult, even for experienced professionals, to memorize all the hardness conversion values by heart. Switching from one unit to another can be a real nightmare. 
That’s why we offer you this light and simple conversion tool to make your daily work easier. 

1. Enter a Vickers Hardness (HV) value between 100 and 1000. 
2. Click “Convert” to get the approximate Rockwell Hardness C (HRC) value. 
3. Interpret the result based on your application and material type. 
The values are based on empirical industrial references and work well for most steels and hard coatings. 

Vickers and Rockwell C are among the most commonly used hardness scales in metallurgy, heat treatment, and surface engineering. 
Understanding the correlation between HV and HRC helps you: 

• Speak a common language with suppliers and clients 
• Ensure compatibility between abrasive media and target surfaces 
• Follow international standards like ISO 18265 or ASTM E140 
   

• Conversion values are approximate and based on general steel behavior
• Not accurate for non, ferrous or very soft/hard materials
• Influenced by test conditions: load, dwell time, sample shape 

Use them as a guide, not a substitute for real testing. 

• Q : Is HV to HRC conversion accurate?  
  A : Accurate enough for estimation, but direct HRC testing is preferred when possible.
• Q : Can I use this converter for stainless steel or coatings?  
  A : Yes, but keep in mind coatings may behave differently from bulk materials.
• Q : Is this tool based on a standard?  
  A : It follows values from ISO 18265 and ASTM E140, widely used in the industry. 

Winoa is a global expert in steel abrasives and metal surface preparation. From technical consulting to abrasive selection and custom solutions, we help you improve process control, quality, and cost, efficiency.