Therma range stainless steels for high temperature applications

A White Paper by Outokumpu

High temperature stainless steels are vital for applications exceeding 550 °C, with some grades enduring up to 1150 °C. These materials are crucial in industries such as iron, steel, metallurgy, general engineering, energy plants, and cement. Selecting the optimal grade ensures safety, reliability, and longevity, considering factors like corrosion resistance, mechanical properties, microstructural stability, and physical properties. Download the Outokumpu Therma range white paper to assist in the selection of the appropriate Therma grade.

High Temperature Stainless Steels: Essential for Extreme Conditions

High temperature stainless steels are crucial for applications where temperatures exceed 550 °C, with some grades capable of withstanding up to 1150 °C. These robust materials are indispensable in the iron, steel, and other metallurgical industries, as well as in general engineering, energy plants, the cement industry, and various other sectors.

 

Why Choose High Temperature Stainless Steels?

Selecting the optimal grade of high temperature stainless steel is vital for ensuring safety, reliability, and longevity of equipment and components. Key factors in this selection process include:

  • Operating Conditions: Understanding the specific temperature ranges and exposure to gases.
  • Material Properties: Evaluating properties such as creep strength that significantly impact performance.

 

Key Properties Affecting High Temperature Performance

The performance of a component in high temperature service depends on the demands of the environment, the design, and how the balanced property profile of the stainless steel grade selected meets these demands in terms of four key properties:

  • High Temperature Corrosion Resistance: Resistance to oxidation, sulfidation, and other forms of corrosion.
  • Mechanical Properties: Especially creep resistance at the operating temperature and length of exposure.
  • Microstructural Stability: How the properties of the material might change during the lifetime of the product.
  • Physical Properties: Thermal conductivity and expansion.

 

Benefits of Correct Material Selection

By choosing the ideal high temperature stainless steel, you can:

  • Extend Equipment Lifespan: Enhance durability and service life.
  • Achieve Cost Savings: Potentially reduce material thickness, leading to overall cost efficiency.

Ensure your equipment performs reliably under extreme conditions by selecting the right high temperature stainless steel grade. Explore our range of high-performance materials designed to meet the toughest demands. Download the white paper now.

Outokumpu Whitepaper

Select the correct Therma grade

Download the white paper now and understand the key differences between Therma 4910, Therma 4724, Therma 800 series, and Therma 253MA to support in deciding the most suitable grade.

Download the whitepaper and find the correct grade

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