022Cr19Ni5Mo3Si2N
Stainless Steel022Cr19Ni5Mo3Si2N
Specialty steel grade. /T 20878; equiv ASTM 444 / EN 1.4521). Nominal values—confirm mill certificate.
Chemical Composition (%)
| C | 0.025 |
|---|---|
| CR | 17.5 |
| MO | 1.75 |
| NB | 0.2 |
Mechanical Properties
Tensile:≥430 MPa;Yield:≥250 MPa
Chinese Standard
T 20878 022Cr19Ni5Mo3Si2N
Equivalent Standards
ASTM 444
Equivalent Grades
EN 1.4521
Applications
高耐蚀铁素体，抗氯。,"Sheet
Available Forms
Tube"
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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