What is SG2 Steel?

The Powder Metallurgy (PM) SG2 steel is also known as SGPS. It is manufactured by a Japanese steel manufacturer that is well known for the steels they make. The SG2 is high carbon content and a high alloy stainless steel. Powder metallurgy improves the alloy significantly. Regardless of the few comments to the contrary, one of the absolutely finest kitchen knives ever made was comprised of SG2 steel. The Elite line of SG2 kitchen knives was taken off of the market recently, but SG2 was still considered by many to be the best steel for kitchen knives.

knife aficionados say that SG2 stands for Super Gold

SG-2 steel is a product of the Japanese Powder Metallurgy (PM) steel. The original producer was the Takefu steel company. Some knife aficionados say that SG2 stands for Super Gold. While there have been some negative comments on the SG2, many people seem to be happy with the SG2 performance in some elite knives.

How SG2 is Made

SG2 steel knives are very pretty because of their properties.

SG2 steel knives are very pretty because of their properties.

Understanding the way the SG2 blades are constructed will explain the superb quality of the SG2 steel. Layers of stainless/nickel ladder-pattern coat the outer layer blade of the Damascus for a fantastic look. This also makes it easier to clean and it makes releasing food easier when cutting.

The thin blades of knives made of SG2 steel can be sharpened to a 16 degree angle which makes an amazing sharp knife for the greatest performance that could be expected for a kitchen knife to deliver. The SG32 reaches 64 on the Rockwell Hardness Scale, and this is impressive.

How Can I get a SG2 Knife?

The designations SG2 and SG3 are now obsolete. They have been replaced by G3Si1 and G4Si1 respectively. (Read about butterfly knives).


The Japanese knife industry is passionate about the SG2 steel and their products show why. They hold a sharp blade and they are very durable. Most users of this knife find that it is very easy to use and to sharpen. Cutting an apple would require very little pressure on the knife. Powder metal technology has advanced in the making of knives and the SG2 steel or the G3si1 steel exemplifies this. The knife is strong, lightweight, and the aesthetic appearance is evenhanded by the type of material.

If you enjoyed this article, check out our review on machetes or read which pocket knife was recommended by an Airborne soldier.

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