N08367(AL6XN)
Stainless SteelN08367(AL6XN)
N-strengthened super-austenitic. (ASTM B511; equiv UNS N08367 / EN 1.4529). Nominal values—confirm mill certificate.
Chemical Composition (%)
| C | 0.03 |
|---|---|
| CR | 20 |
| NI | 23.5 |
| MO | 6 |
| N | 0.18 |
Mechanical Properties
Tensile:≥650 MPa;Yield:≥300 MPa
Chinese Standard
ASTM B511 N08367(AL6XN)
Equivalent Grades
UNS N08367 / EN 1.4529
Applications
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Available Forms
Tube"
Uses
Duplex stainless steel with a mixed austenite/ferrite structure giving roughly twice the yield strength of austenitic grades plus excellent chloride resistance. Used in desalination, offshore, pulp & paper, heat exchangers and chemical tankage.
Heat Treatment
Solution anneal 1020–1100 °C and rapid quench; reheating near 300–400 °C (sigma phase) and 475 °C embrittlement zones must be avoided.
Precautions
Heat input and interpass must be controlled to keep the ferrite/austenite balance; avoid exposure 300–400 °C (sigma) and use low carbon. Sensitive to chloride SCC above ≈60 °C.
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