M Numbers

M Numbers

C-Spec

Available on Google Play
100+ installsFreeProductivity

Updated Jul 29, 2026 · v1.4

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Quick lookup of base metal weldability grouping 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.

Released
June 13, 2024

2 years on Google Play

Version
1.4
Updated
Jul 29, 2026
Content Rating
Everyone
Installs
100+
Developer
C-Spec
Website
http://cspec.com
Email
mike@cspec.com
In-app purchases
No

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