Type of Steel Used in Hunting Knives

Here is an explanation of the different types of steel used in hunting knives.  This is an important aspect of your knife.

420 knife steel has a low carbon content.  It is found in inexpensive knives and is used more prominently for diving purposes.

420HC steel, when treated properly, has good corrosion resistance and holds an edge well.  Buck knives contain 420HC steel.  They are carefully treated.

Sometimes referred to as “semi-stainless”, because it contains 12% chromium instead of the 13% standard, D-2 knife steel is excellent for holding an edge.  It may not be as strong as a knife that has more carbon content.

S30V knife steel is mainly for cutlery.  It is thought by many to be the best steel for knives.  Carbon and vanadium content makes it corrosion resistant and it holds a sharp edge.

440 knife steel comes in three grades: 440A, 440B and 440C.  440C, in my opinion, is the best of three grades.  The only downfall is that it is the least rust resistant.  It contains the highest carbon content and therefore is the strongest.  If a knife says 440, it is probably 440A and has the least carbon content.  All grades meet the standard to be considered stainless steel.

Similar to 440A, is 425M knife steel.

Many high quality knives are made in Japan.  AUS knife steel is used there.  It also has three grades: AUS-6, AUS-8 and AUS-10.  With AUS-10 being comparable to 440C,  It is even less rust resistant but stronger.  AUS steel contains vanadium that improves it wear.

The Japanese use two other types of steel.  The ATS-34 knife steel is also similar to 440C.  VG-10 has an added element of cobalt.  It is used to enhance other qualities of the knife.  There is a toughness factor present that increases the knife’s ability to withstand stress.  VG-10 keeps a good edge and resists corrosion.  It is easily scratched, however.

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