Alloy Selection for Elevated Temperature Applications: Meeting the Challenge

Understanding the metallurgy behind elevated temperature performance is essential for engineers and designers. At elevated temperature, metals don’t behave like they do at room temperature — creep, oxidation, and microstructural changes become dominant, and these must all be accounted for in design and material selection.

When a component operates at elevated temperatures, the rules change:

 Creep deformation begins early and accumulates over time.

 Strength is time and temperature-dependent, not fixed at room temperature.

 Surface films may degrade in oxidising, reducing, or erosive environments.

 Microstructural stability is challenged by grain growth, recrystallisation, and phase transformations.

For OEMs and industrial customers, the critical task is choosing the right alloy and setting the correct specifications to manage these factors.

Malabou’s Expertise

Malabou cast special alloys that allow for castings to be used at elevated temperatures, in some cases in excess of 1000°C.

These heat-resistant casting alloys consist predominantly of combinations of nickel, chromium and iron together with small percentages of other elements.

Castings made of these high temperature alloys exhibit good mechanical strength and toughness at elevated temperatures as well as oxidation and corrosion-resistance in environments at temperatures where they are to be used.

Malabou can also select the advanced casting method to best help clients achieve the right balance of performance, reliability, and cost-effectiveness including investment, sand and shell moulding.

When the design and specification are defined, Malabou ensures that every casting meets the required standards for strength, durability, and reliability — even in the harshest high-temperature environments.

Conclusion

High-temperature service demands more than ordinary metallurgy — it requires a deep understanding of how alloys behave under heat, stress, and environmental exposure. At Malabou, we provide the casting expertise and quality assurance that ensures our customers’ designs are realised with confidence.

Learn more about our capabilities atwww.malabou.com