Stainless Steel 304/304L/304H
Grade 304 is a standard “18/8” stainless. It is the most versatile and most widely used stainless steel available, even though a wide range of alternatives are available; and has excellent forming and welding characteristics. The balanced austenitic structure of Grade 304 enables it to be severely deep drawn without intermediate annealing.
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 | Mo | Ni | N | |
304 | min. | - | - | - | - | 18.0 | - | 8.0 | - | |
max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||
304L | min. | - | - | - | - | - | 18.0 | - | 8.0 | - |
max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
304H | min. | 0.04 | - | - | - | - | 18.0 | - | 8.0 | - |
max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | - | ||
Equivalent Grade
Grade | UNS No. | Old British | Euronorm | Swedish SS | Japanese JIS | GOST | ||
304 | S30400 | BS | En | No | Name | 2332 | SUS 304 | 08Х18Н10 |
304L | S30403 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 | |
304H | 515 | 205 | 40 | 92 | 201 | |||