Hastelloy X (UNS N06002) plate is a nickel-chromium-iron-molybdenum superalloy specifically engineered for extreme temperature applications where both oxidation resistance and creep strength are critical. This wrought alloy maintains exceptional performance in temperatures ranging from 800°C to 1200°C (1472°F to 2192°F), offering a unique combination of:

47% Nickel base for high-temperature stability

22% Chromium for oxidation resistance

9% Molybdenum for solid solution strengthening

18% Iron for cost optimization

0.6% Tungsten for creep resistance

Key Material Properties

Outstanding oxidation resistance in cyclic heating conditions

Excellent creep-rupture strength at elevated temperatures

Good fabricability and weldability compared to cast superalloys

Resistance to carburization and nitriding environments

Maintains mechanical properties after prolonged high-temperature exposure

Primary Applications

Aerospace Components

Combustor cans and liners in jet engines

Afterburner components and flame holders

Turbine exhaust systems and seals

Rocket engine structural parts

Industrial Furnace Systems

Radiant tube assemblies

Heat treatment furnace fixtures

Petrochemical cracking furnace parts

Annealing and sintering furnace components

Energy Sector Applications

Gas turbine hot gas path components

Advanced nuclear reactor core structures

Waste-to-energy combustion chambers

Concentrated solar power receivers

User Requirements & Selection Criteria

Design engineers specify Hastelloy X plates for applications requiring:

✔ Continuous service in 800-1150°C (1472-2102°F) range

✔ Resistance to thermal cycling and thermal shock

✔ Structural integrity under mechanical stress at temperature

✔ Long-term stability in oxidizing/carburizing atmospheres

✔ Fabrication into complex high-temperature components

Technical Advantages Over Alternatives

Superior oxidation resistance compared to Inconel 600/601

Better creep strength than Incoloy 800HT at equivalent temperatures

More cost-effective than cobalt-based superalloys like Haynes 188

Better fabricability than oxide dispersion strengthened (ODS) alloys

Proven track record in critical aerospace applications

Standards Compliance

ASTM B435 (Plate, sheet, and strip standard)

AMS 5536 (Aerospace material specification)

ASME SB-435 (Pressure vessel code)

EN 10095 (European heat resisting standard)

Industry Trends Driving Demand

• Increasing turbine inlet temperatures in next-gen aircraft engines

• Growth in combined cycle power plants requiring durable materials

• Expansion of high-temperature process industries

• Need for reliable materials in renewable energy systems

Future Development Directions

Improved thermomechanical processing for enhanced properties

Development of laser-welded hybrid structures

Surface modification techniques for extreme environments

Integration with thermal barrier coating systems