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446 stainless steel is highly resistant to high temperature corrosion. Compared with 445, it has high Cr, low carbon and Mo added to ensure high corrosion resistance. No peeling scale is produced below 1082 ° C for use in the combustion chamber. Stainless steel for exterior materials for large public buildings in coastal and industrial areas.
Characteristics
1) high corrosion resistance;
2) weather resistance;
3) high intensity;
4) Magnetic;
5) It cannot be hardened by heat treatment.
Grade and Main Chemical Composition%
| Grade | C | Si | Mn | P≤ | S≤ | Cr | Mo | Ni | Other |
| 436 | ≤0.08 | ≤1.00 | ≤1.00 | 0.04 | 0.015 | 16-18 | 0.8-1.4 | – | – |
Mechanical Properties
| Grade | YS(Mpa) ≥ | TS (Mpa) ≥ | El (%) ≥ | Hardness(HV) ≤ |
| 436 | 300 | 480 | 25 | – |
446 stainless steel is commonly used in sulfur-tolerant atmospheres, such as combustion chambers, annealing chambers, glass-free molds, valves, and stirring rods.
