MAT102 is a Messier Dowty specification for Maraging 250

 

Maraging 250 (AMS 6512) is an age-hardenable iron-nickel steel. Maraging 250 combines ultra-high strength (1800MPa), good toughness, readily machinable in pre-aged condition, excellent transverse properties and resistance to crack propagation. Maraging C250 is used for missile and ejector systems, slat tracks and drive shafts. Bar, Billet and Forging.

 

Messier Dowty is now known as Safran Landing Systems. MAT 102 is a converted specification to Safran.