Hardness Conversion Master

ASTM Hardness Converter Pro

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Essential for professionals! Instantly convert 15 metal hardness scales: HRC, HRA, HRB, HRD, HRF, HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HB, HBW, HV, MPa. Download ... A professional hardness conversion tool designed for mechanical engineering, metal heat treatment, and quality management, providing quick, stable, and traceable engineering reference data. **Key Features** 1. **Industrial-Grade Precision** The conversion logic is based on ASTM E140 / ASTM A370 standards, utilizing high-density reference points and linear interpolation to deliver stable and reproducible conversion results. 2. **Flexible Input and Real-Time Synchronization** Allows direct input in any hardness field (e.g., HRC / HV / HBW), with real-time conversion across other units, enhancing on-site operational efficiency. 3. **Physical Range Protection Mechanism** Built-in effective range checks for each scale, displaying "No Reference Value" when out of range, reducing the risk of misinterpretation. 4. **Customizable Interface** Enables toggling unit displays and drag-and-drop sorting to create a workspace tailored to individual or production line processes. 5. **Image Conversion (Beta)** Supports photo/album import, area selection recognition, result comparison, and manual correction, suitable for quick conversion of reports and on-site records. 6. **Batch Conversion** Allows multiple data entries for rapid conversion, retaining the last used unit preference to minimize repetitive actions. **Supported Units** - Rockwell: HRC, HRA, HRB, HRD, HRF - Superficial Rockwell: HR15N, HR30N, HR45N, HR15T, HR30T, HR45T - Brinell: HB, HBW - Vickers: HV - Tensile Strength: MPa

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- Added multilingual support - Introduced batch conversion - Introduced batch image conversion (beta version) - Added built-in user guide - Optimized interface - Stability and performance enhancements

The developer, POYU WANG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

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Seller
  • POYU WANG
Size
  • 169.1 MB
Category
  • Utilities
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
English and 14 more
  • English, French, German, Hindi, Italian, Japanese, Korean, Polish, Portuguese, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Poyu Wang