Stainless Steel Grades Directory

ATS-55 is a high-carbon stainless steel developed by Hitachi Metals. At the time of its development, ATS-55 was considered a premium steel with a performance level of 440C. Its optimal hardness is 59-62 HRC. It is slightly more susceptible to corrosion than ATS-34. ATS-55 is a very good cutlery steel from Japan, very similar to ATS-34, but with much less molybdenum and the addition of cobalt and copper.

Details: Written by: ukirs; Published: 17 February 2025; Created: 17 February 2025; Last Updated: 18 February 2025; Hits: 254

AUS10A is a high-carbon stainless steel that is known for its strength, good hardness, and ease of sharpening. It is considered the strongest of the AUS series steels. Manufactured by Japanese steelmaker Aichi Steel, AUS10A is less well known than other AUS steels, but it has been gaining quite a bit of attention lately. Some also refer to the metal simply as AUS10 steel, with the last letter being specific to the manufacturer.

Details: Written by: ukirs; Published: 18 February 2025; Created: 18 February 2025; Last Updated: 18 February 2025; Hits: 443

CTS BD1N is a nitrogen containing, high carbon chromium martensitic stainless steel balanced to provide superior hardness compared to CTS BD1 steel. It has a hardened hardness of HRC 60 - 63. Corrosion resistance similar to 410, can resist corrosion in mild atmospheric conditions, fresh water, steam, ammonia, many petroleum products, organic materials and several weakly acidic environments.

Details: Written by: ukirs; Published: 18 February 2025; Created: 18 February 2025; Last Updated: 19 February 2025; Hits: 400

CTS BD1 is a high carbon chromium steel that provides stainless properties with high hardness and excellent wear resistance, behaving very similarly to tool steels, with a Rockwell hardness of 58 - 60 HRC after heat treatment. According to the manufacturer, it has a finely balanced chemical composition with several additives to improve edge retention and enhance ease of machining during the manufacturing process.