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- Stain resistant tool steel, with good edge holding and decent toughness. Contains niobium, one of the best carbide former, although there's not a lot of it(Niobium) in the alloy. In knives, typical working hardness range is 58-63HRC. Even without PM technology, it is a very fine grained steel, which obviously is a positive and aids with edge stability. Strangely, even though it's not an expensive alloy, not very popular with knife makers, mainly used by German, French and Belgian knifemakers. Supposed to have AISI D2
like wear resistance, and better edge stability.
Manufacturing Technology - Ingot
Country - Germany(DE)
Lohmann - LO-R 4153.03, Lohmann - SB1