Stainless Steel 420/420HT
Stainless Steel 420/420HT is a high-carbon steel with a minimum chromium content of 12%. Like any other stainless steel, grade 420 can also be hardened through heat treatment. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished, surface grounded, or hardened. This grade has the highest hardness – 50HRC – among all the stainless steel grades with 12% chromium.
Application Industries
These materials are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthroughs, the origins of stainless steel lies in a lucky accident. From the smallest part of the zipper to the largest building skyscraper.
Metal fabrication is widely used across various industrial sectors such as mining, construction, manufacturing, shipbuilding, automotive, aerospace, and energy.
Chemical Composition
Grade | C | Mn | Si | P | S | Cr |
SS 420 | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 14.0-12.0 |
Equivalent Grade
Standard | WERKSTOFF NR. | UNS | JIS | BS | EN |
SS 420 | 1.4021 | S42000 | SUS 420J1 | 420S29 | FeMi35Cr20Cu4Mo2 |