XN65MVYu
High-Temp SteelXN65MVYu
Ni-Mo-Cr alloy, strong corrosion resistance (chloride environments). (GOST 5632; equiv UNS N10276 / ASTM B575 / GB NS3304). Nominal values—confirm mill certificate.
Chemical Composition (%)
| CR | 14.5 |
|---|---|
| MO | 15 |
| FE | 4 |
| W | 3 |
Mechanical Properties
Tensile:≥790 MPa;Yield:≥355 MPa;Elong:≥40%
Chinese Standard
GOST 5632 XN65MVYu
Equivalent Standards
ASTM B575
Equivalent Grades
Maintain the recommended heat-treatment envelope; prolonged time in embrittlement ranges reduces ductility. Use descaling/protective atmosphere to limit scaling.
Applications
镍钼铬耐强腐蚀（含氯）。,"Plate
Available Forms
Sheet
Uses
Bar"
Heat Treatment
Heat- and creep-resistant steel for elevated-temperature service with stable strength and oxidation resistance. Used in furnace parts, exhaust manifolds, turbine components, boiler tubes and engine valves.
Precautions
Normally used in the solution-annealed or precipitation-hardened condition; stabilise/age per the grade (e.g., 650–800 °C ageing). Avoid long exposure in the sigma/475 °C embrittlement ranges.
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