Above 500°C, materials decide performance

Across the world, power producers are being asked to do more with less. Increasing output, improving efficiency, and adapting to new energy demands, all within existing infrastructure.

Power capacity across the is effectively sold out through 2030, driven not by heavy industry but by surging data centers training AI models.

Unlocking more power output from existing assets, often by pushing systems beyond 500°C, is becoming critical and to do this without full system replacement or high capital expenditure is what our customers tell us is vital.

And at the center of this challenge, operating silently under extreme conditions, is a component that only gets attention when it fails: steel tubing.

Expertise that drives performance

Alleima has identified three structural trends shaping the power sector:

• Higher efficiency
• Modular systems
• Diversified fuels.

While these trends can differ depending on location, they tend to converge on the same material challenge: tubing materials operating above 500 °C (932 °F) in increasingly aggressive environments.

So what makes the difference?

At temperatures above 500°C, material behaviour changes fundamentally. Strength alone is no longer enough. Long-term creep resistance, corrosion performance and structural stability become the governing factors over decades of operation.

That’s why operators are moving toward:

• Advanced high-temperature alloys engineered for extreme environments
• Composite tube solutions combining strength and corrosion resistance
• Materials designed specifically for cycling, aggressive fuels and higher operating parameters

Alleima brings all three together.

With a portfolio spanning 500°C to 1250°C, and decades of R&D and field experience, our tubing solutions are built to perform where conventional materials reach their limits.

This is proven in real-world conditions. In one example highlighted in our paper, optimized tubing solutions delivered 4.6 trillion BTU in energy savings, across 18 US mills.

Make the right material decision

Alleima goes beyond supply- we are your technical partner.

Selecting the right alloy for high temperature tubing applications is a balancing act, requiring careful consideration of temperature capability, corrosion resistance, mechanical strength and long-term durability.

We support that decision with high temperature tubing solutions for a range of critical power generation operations including data centers, heat recovery steam generators (HRSG), once-through steam generators, nuclear power facilities, pulp & paper, hydrogen related power and waste-to-energy applications.

Alleima: Your strategic partner in high-temperature tubing

When performance matters, materials matter more.