October 17, 2018
MI-21

What is it?

MI-21 (Metals Information for the 21st Century) from is a vast World Metals Index (WMI) collection of specifications, standards, trade literature, and datasheets for ferrous and non-ferrous metals. It encompasses over one hundred years of metals information dating back to the early 1900s.  

What is in it?

More than 27,000 alloys, including 19,000+ ferrous alloys and 7,000+ non-ferrous alloys. Links to the MI-21 directory covering over 6,800 citations (data reference sources, trade catalogues and Standards) and contact details for 570 suppliers. 

What is it used for?

Specification, procurement, material selection, design, analysis, manufacturing, maintenance and repair, material identification and equivalents, research.

Where does it come from?

The data is the result of the MI-21 project coordinated by NAMTEC (the UK’s National Metals Technology Centre).  

How do I access it?

Part of the Global Metals Specifications dataset alongside data from ASM International, the German Steel Institute, and UK Steel.  Purchased as part of the Metals data bundle and accessed via GRANTA MI or GRANTA Selector.