Description
Available sizes:
38.1mm, 50.8mm, 76.2mm, 101.6mm, 152.4mm, 203.2mm
420 (UNS S42000) Stainless Steel Round Bar
Our ASTM A276 / API 6A stock ranges from 38.1 to 203.2
AISI 420
AISI 420 (UNS S42000) is a martensitic stainless steel with 12% Chromium which is sufficient to give good corrosive resistance properties. It’s best corrosive resistance is when hardened and surface is ground or polished.It has good ductility in the annealed condition but can be hardened up to 500HB (highest of the chromium grades). Martensitic grades are known for high hardness and allowances must be made for poor weldability and usually allowances for a final harden and temper treatment.
| Application | AISI 420 (UNS S42000) Knives, Surgical Instruments, Fasteners, Shafts, Spindles, Plastic Molds. |
| Sheet, Plate & Strip | AMS 5506, ASTM A176 |
| Billet, Rod & Bar | SAE S1420, ASTM A276 |
| EN / DIN | 1.4021 |
| Others | BS970, |