Fairbairn Mini

what is the blade material of geber mini converter?
confused… some say 154cm some say 440a or HC SS..
the bigger fairbairn converter is mad eof 154cm ,what about the mini one?
154cm, 440, and AUS 8 stainless are pretty well interchangeable except to the chemical analyst. All three are high-grade stainless steel with Rockwell hardness in the high 50′s (usually somewhere between 56-59). They hold their edge well, but are harder to sharpen than lesser-grade steels. The reason I say that they are pretty well interchangeable is that Benchmade stopped using 154cm in their knives because it is an imported steel. Their knives now sport 440 stainless. With Benchmade’s quality, there is no way that they settled for a down-grade in steel.
So it really doesn’t matter what the covert blade material is as long as it is one of the three.
Gerber Applegate-Fairbairn Mini Covert