Type 440A is a high-carbon martensitic stainless steel developed to provide stainless properties
with maximum hardness.
It is magnetic in both the annealed and hardened conditions.
Maximum hardness and corrosion resistance are available only in the hardened or hardened and stress
relieved conditions, so the alloy is not used in the annealed or annealed and tempered conditions.
Dental and surgical instruments and cutlery are frequent applications for Type 440A.
We produce AISI 440A, UNS S44002 stainless steel in forms of sheet/plate, strip/coil, drawn wire, round bar.
| AISI | JIS | EN/DIN | Chemical composition % | |
| 440A | SUS440A |
1.4109 X70Cro15 |
C 0.60~0.75, Cr 16.00~18.00, Mo 0.75 max | |
picture for 440A cold drawn stainless steel wire in cut lengths, straightened bar, dia 3.2mm
Contact Person: Mr. Paul
Tel: 86-510-81812873
Fax: 86-510-81812872
