| Classify |
Grade |
Chemical component |
DIN No. |
Features and purpose |
| Austenite series |
202 |
8Cr-5Ni-8Mn-N |
1.4371 |
Ni saving steel type, 302 replacement steel type |
| 204Cu |
17Cr-2Ni-2Cu-N |
|
Ni saving steel type, 304 replacement steel type |
| 202M |
17Cr-7Ni-7Mn-N |
|
High hardness, non-magnet steel, for shaft |
| 302 |
18Cr-8Ni-0.1C |
1.4301 |
High strength available by cold drawing, for spring |
| 303 |
18Cr-8Ni-0.2S |
1.4305 |
Excellent machinability, for automatic lathe, for PIN |
| 303Cu |
18Cr-8Ni-2.5Cu |
|
Improved machinability and cold drawing, for shaft |
| 303F |
18Cr-8Ni-0.3S |
|
Improved machinability compare to 303 |
| 304 |
18Cr-8Ni |
1.4301 |
Most widely used in stainless steel, for kitchen utensils, for general use |
| 304L |
18Cr-9Ni-低C |
1.4306 |
Extremely low carbon steel in 304, excellent intergranular corrosion resistance |
| 304HC |
18Cr-8Ni-2.5Cu |
|
Added Cu in 304 to improve cold heading, for bolt, nut and nail |
| 304J3 |
18Cr-8Ni-2Cu |
|
Mid component of 304 and XM7, for bolt and nut |
| 304Cu |
17Cr-8Ni-3.05Cu |
|
Ni saving cold drawing steel compare to XM7, for bolt and nut |
| 305 |
18Cr-13Ni-0.1C |
1.4303 |
Less process thermosetting compare to 304, for cold drawing |
| 309S |
22Cr-12Ni |
1.8330 |
Excellent corrosion resistance and heat resistance, for high temperature |
| 310S |
25Cr-20Ni-2Si |
1.4845 |
Excellent oxidization resistance, for heat resistance conveyer belt |
| 314 |
25Cr-20Ni-2Si |
|
Added Si in 310S to improve high temperatures strength, for conveyer belt |
| 316 |
18Cr-12Ni-2.5Mo |
1.4401 |
Better corrosion resistance compare to 304, corrosion resistant material |
| 316L |
18Cr-12Ni-2.5Mo-低C |
1.4404 |
Extremely low carbon steel of 316, excellent intergranular corrosion resistance |
| 316LF |
18Cr-12Ni-2.0Mo-0.1S |
|
Extremely low carbon steel of 316F |
| 316Ti |
18Cr-12Ni-2.5Mo-Ti |
1.4571 |
Added Ti in 316 to improve intergranular corrosion resistance |
| 321 |
18Cr-9Ni-Ti |
1.4541 |
Steel with improved intergranular corrosion resistance by adding Ti in 304, high temperature steel |
| XM7 |
18Cr-9Ni-3.5Cu |
1.4567 |
Added Cu in 304 to improve cold drawing, for bolt, nut and nail |
| Duplex series |
SAF2205(S31803) |
22Cr-5Ni-3Mo |
1.4462 |
Ni saving steel, 316L replacement steel |
| Ferrite series |
430 |
18Cr |
1.4016 |
Excellent corrosion resistance steel, for bolt, nut and metal sponge |
| 434 |
18Cr-1Mo |
1.4112 |
430 improved steel, better corrosion resistance strength than 430, |
| 434A |
18Cr-1Cu |
|
Better corrosion resistance strength than 430, for cold drawing and high quality metal sponge |
| 446 |
25Cr |
|
Excellent corrosion resistance, for electronic materials |
| Martensite series |
410 |
13Cr |
1.4006 |
Excellent machinability , for bolt and nut |
| 416 |
13Cr-高C |
1.4005 |
Excellent machinability, for lathe processing |
| 420J2 |
13Cr-0.3C |
1.4028 |
High heat process degree. For shaft |
| 420F |
13Cr-高C |
|
Improved machinability of 420J2 steel type |
| 440C |
13Cr-1C |
1.4125 |
Stainless steel, and the highest hardness among organic heat-resistant steel, the nozzles, bearings |
