M Numbers
C-Spec Productivity
Quick lookup of base metal weldability grouping numbers
- Downloads
- 100+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Jul 29
- 2026 · v1.4
Screenshots
About M Numbers
M Numbers: Quick lookup of base metal weldability grouping numbers (Material Numbers) for welding procedure and performance qualification. Data is provided by C-spec from the master source used for generation, proof-reading and maintenance of AWS B2.1 Table C.1 and C.2.
What’s new
Version 1.4 · Updated July 29, 2026
Updated the app to target Android 16 (API level 36) to comply with the latest Google Play requirements.
Alternatives to M Numbers
Looking for apps like M Numbers? Here are 3 similar Android apps on Google Play. All of them are free to download.
| App | Rating | Price | Installs | Last updated | Compare |
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| M Numbers | – | Free | 100+ | Jul 29, 2026 | |
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