No Costas, under the coating is what CS calls Carbon V. I believe they created this steel and I own several knives made from it.
Althought might be a little higher maintainence than stainless this steel is very tough, very strong holds a good edge and is sharpened easily. These knives(SRK in peticcular)are very nicely priced and will out preform most other more expensive knives.
But about the maintainence issue the coating on the SRK will protect these knives very well but applying a lubricate and rust inhibitor from time to time is a good idea.
Althought might be a little higher maintainence than stainless this steel is very tough, very strong holds a good edge and is sharpened easily. These knives(SRK in peticcular)are very nicely priced and will out preform most other more expensive knives.
But about the maintainence issue the coating on the SRK will protect these knives very well but applying a lubricate and rust inhibitor from time to time is a good idea.