AISI 440C steel is sometimes called as “surgical stainless“. ASTM A276 standard grade 440c stainless steel is a high carbon martensitic stainless steel, which is generally supplied in the annealed condition with a maximum Brinell hardness of 269 (Rc29) or annealed and cold drawn with a maximum Brinell hardness of 285 (Rc31).
- AISI 440C stainless steel is characterized by good corrosion resistance in mild domestic and industrial environments, including fresh water, organic materials, mild acids, various petroleum products.
- Stainless steel 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys.
- Small AISI 440C material sections can be air cooled and quite large sections oil quenched for maximum through hardness.
Chemical Composition
| Grade | C | Mn | P | S | Si | Cr | Mo |
| S44004/440C | 0.95-1.20 | ≦1.00 | ≦0.04 | ≦0.03 | ≦1.00 | 16.0-18.0 | ≦0.75 |
Important Clients with Otai
Certificate & SGS Report
