SG2 Knives

SG2, also sometimes called R2, is a powdered stainless steel developed in Japan by Takefu Special Steel. It is one of the higher-performing steels used in kitchen knives today.

Think of edge retention the way you think about tires. A 60,000-mile tire lasts longer between changes than a 30,000-mile tire. That is what you are buying with SG2. The edge stays working longer under normal kitchen use, which means fewer trips to the stone.

Stainless without compromise

SG2 is stainless. It does not require the same attention as carbon steel. Wash it, dry it, put it away. You will not see patina or surface oxidation under normal use like you would if it were carbon. For cooks who want high performance without a maintenance routine, this is a top steel to look at.

How it sharpens

SG2 holds its edge longer because of how it is made. The powder metallurgy process produces a fine, uniform carbide structure that resists wear in a way most steels cannot match. That structure is also what makes sharpening a bit more demanding than carbon steel. A quality diamond stone or ceramic gets better results. Standard waterstones work, but the process takes longer.

One thing worth knowing: a thick blade behind the cutting edge will make even a sharp knife feel slow and dull in use. SG2 knives are typically ground thin, which is part of why they perform the way they do. If your SG2 knife feels off, professional sharpening addresses both the edge, thinning if needed and the overall geometry.

The makers we carry in SG2

Our SG2 collection includes work from Yu Kurosaki and Yoshimi Kato, two of the most respected makers working in this steel. Each approaches the grind and finish differently. Worth comparing if you have not already.

Who this steel is for

Cooks who want a knife that stays sharp under real use, without thinking much about it. People who want high performance and low maintenance in the same package. SG2 delivers both.

If you are interested in carbon steel and the experience it offers, Aogami Super is worth a look.

Not sure which shape fits your cooking? Start with our knife shapes guide. We are also at 4948 France Ave S in Edina if you want to handle them in person.