19C27
C: 0.95; Cr: 13.50; Mn: 0.70;
P: 0.02; S: 0.01; Si: 0.40;

Maker: Sandvik - Sweden (SE)

Notes:
Sandvik steel, very pure alloy. Popular with Japanese knifemakers, referred simply as Swedish steel. Often seen in Japanese kitchen knives, where it is hardened in the range of 62-64HRC. 19C27 is sort of a predecessor and more of a budget version of the Takefu VG-10 stainless steel, but a very solid performer on its own.

Cross-References:

Proprietary:
Bohler-Uddeholm - AEB-H
Daido - MBS-26
Lone Wolf - LV-03