19C27

19C27, or Alleima® 19C27, consists of:

Carbon

Chromium

Cobalt

Copper

Manganese

Molybdenium

Nickel

Niobium

Nitrogen

Phosphorus

Silicon

Sulfur

Tungsten

Vanadium

0.95

13.50

/

/

0.75

/

/

/

/

0.025

0.40

0.010

/

/

From Spyderco's website:

Manufactured by Alleima® in Sweden, this ingot stainless steel is extremely pure and very popular among Japanese knifemakers, who often refer to it simply as “Swedish steel.” Widely considered both a predecessor to and a more affordable version of Takefu VG-10, it is also a very close equivalent to MBS-26, which is featured in Spyderco’s popular Kitchen Classics cooking knives.