Grade 409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.
Available forms: Coils, Sheets, Strips, Welded Tubes, Profiles
Chemical Compositions*
| Element | % Present (in product form) |
| Carbon (C) | 0.030 |
| Silicon (Si) | 1.00 |
| Manganese (Mn) | 1.00 |
| Phosphorous (P) | 0.040 |
| Sulfur (S) | 0.015 |
| Chromium (Cr) | 10.50 – 12.50 |
| Molybdenum (Mo) | 6 x (C+N) to 0.65 |
| Iron (Fe) | Balance |
| Product Form | |||
| C | H | ||
| Thickness (mm) Max | 8 | 13.5 | |
| Yield Strength Rp0.2 N/mm2 | Longitudinal | 210 | |
| Transverse | 220 | ||
| Tensile Strength | Rm N/mm2 | 380 – 560 | |
| Elongation min. in % | A80mm1) <3mm (longitudunal + transverse) | 25 | |
| A2) ≥3mm (longitudinal + transverse) | |||