Heat-Resistant Alloys

Material families considered when components must retain useful performance in demanding thermal environments.

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Heat-Resistant Alloys casting reference

Overview

Why choose Heat-Resistant Alloys?

Heat-resistant material selection requires a clear operating environment, loading condition and verification standard. Availability and the final production route are confirmed during engineering review.

  • Operating and transient temperature environment
  • Loading, oxidation and corrosion exposure
  • Required final material condition
  • Project-specific testing and documentation

Availability

Heat-Resistant Alloys options

Standards, material condition, equivalent designations and final availability are confirmed for each project. No equivalence should be assumed without engineering review.

The grades below are representative, not a complete availability list. Final grade, condition and applicable standard are confirmed during engineering review; cross-standard equivalence is not implied.

Investment Casting

Maximize part performance

Representative Grades & Characteristics

A practical starting point for engineering discussion. Other commonly specified grades can be reviewed against your drawing and requirements.

HH

ASTM A297 grade
Investment Casting
  • Heat-resistant cast-alloy direction
  • Oxidation-environment review
  • Thermal-cycle design review
  • As-cast geometry and finish planning

Application directionFurnace hardware, fixtures and general high-temperature components

HK

ASTM A297 grade
Investment Casting
  • Iron-chromium-nickel heat-resistant direction
  • Elevated-temperature service review
  • Oxidation and atmosphere assessment
  • Thermal-cycle and section review

Application directionFurnace, heat-treatment and thermal-process equipment components

HT

ASTM A297 grade
Investment Casting
  • Heat-resistant alloy-casting direction
  • Service-temperature profile review
  • Process-atmosphere assessment
  • Geometry and thermal-distortion planning

Application directionThermal-process fixtures, supports and engineered furnace parts

HU

ASTM A297 grade
Investment Casting
  • High-temperature alloy direction
  • Oxidation-resistance review
  • Thermal stability and cycling review
  • Inspection and final-condition planning

Application directionFurnace hardware and demanding thermal-service components

Engineering review

Need to confirm the right material route?

Send the drawing, service environment, target material direction and annual volume for an engineering review.

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Ready to confirm the material route?

Send the drawing, service environment and production requirements for an engineering review.

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