SUS409
Stainless SteelSUS409
SUS409 supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| C | 0.08 |
|---|---|
| MN | 1 |
| NI | 0.5 |
| CR | 10.5 |
| TI | 6 |
| SI | 1 |
Chinese Standard
JIS G4303
Equivalent Grades
AISI 409
Available Forms
Sheet, Plate, Bar, Tube, Pipe
Uses
Ferritic stainless steel with good resistance to stress-corrosion cracking and oxidation, plus formability and lower cost. Used for automotive trim, exhaust systems, domestic appliances, decorative and welded structures.
Heat Treatment
Annealed at 780–850 °C and air cooled; stabilize at 600–800 °C to avoid 475 °C embrittlement; not hardenable by heat treatment.
Precautions
Avoid welding in the 475 °C embrittlement and sigma-phase ranges; use matched filler and minimize heat input. Good resistance to stress-corrosion cracking.
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