Chemical composition of 200 series stainless steel
| Grade | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | Nitrogen (Max) | Cu/ Others |
| 201 | 0.15 | 5.50-7.50 | 0.06 | 0.03 | 1 | 16.00-18.00 | 3.50-5.50 | – | 0.25 | |
| 202 | 0.15 | 7.50-10.00 | 0.06 | 0.03 | 1 | 17.00-19.00 | 4.00-6.00 | – | 0.25 | |
| 301 | 0.15 | 2 | 0.045 | 0.03 | 1 | 16.00 – 18.00 | 6.00 – 8.00 | – | 0.1 | |
| 304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.00 – 20.00 | 8.00- 10.50 | – | 0.1 | – |
| 304L | 0.03 | 2 | 0.045 | 0.03 | 1 | 18.00 – 20.00 | 8.00- 12.00 | – | 0.1 | – |
| 310S | 0.08 | 2 | 0.045 | 0.03 | 1.5 | 24.00- 26.00 | 19.00-22.00 | – | – | – |
| 316 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.00 – 18.00 | 10.00- 14.00 | 2.00 – 3.00 | 0.1 | |
| 316L | 0.03 | 2 | 0.045 | 0.03 | 1 | 16.00 – 18.00 | 10.00- 14.00 | 2.00 – 3.00 | 0.1 | — |
| 316Ti | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.00 – 18.00 | 10.00- 14.00 | 2.00 – 3.00 | 0.1 | Ti5x C Min |
| 317 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 11.00 – 14.00 | 3.00 – 4.00 | 0.1 | – |
| 317L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 11.00 – 15.00 | 3.00 – 4.00 | 0.1 | – |
| 321 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.00 – 19.00 | 9.00 – 12.00 | – | 0.1 | Ti5xC Min |
| 347 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.00 – 19.00 | 9.00 – 13.00 | – |
Mechanical Properties
| Grade | YS(Mpa) ≥ | TS (Mpa) ≥ | El (%)≥ | Hardness(HV) ≤ |
| 201 (mid copper) | 200 | 520 | 25 | 210 |
| 201 (high copper) | 200 | 520 | 35 | 210 |
| 202 | 200 | 590 | 40 | 180 |
Applications
1. Auto Parts:
Mobile phone Outer shelL,Disc switch , Etching parts, Electronic stamping parts ,Electron gun parts , Protecting tube of Optical fiber cable, Cylinder Gasket , Piston expansion ring,End cap of Auto filter,Decoration strip
2. Kitchen appliance:
Stainless Steel Kitchenware
3. Textile and light industry:
Weaving machine shaft ,Weaving machine loom reed
4. Medical Devices:
Surgical Blade , Surgical Needle , Catheter stents for operation.
5. Construction Decoration:
Elevator, Floor Heating , Other decorations
6. Aerospace:
Aero turbine Fastener ,Stainless steel membrane, Precision stainless steel capsule
