Haynes® Alloy 188

Properties of Haynes® Alloy 188

Haynes® 188 combines high mechanical strength at elevated temperatures with excellent oxidation resistance, especially in air and combustion gases up to 1093°C. The addition of lanthanum enhances the adhesion and durability of the protective oxide layer, resulting in a long lifespan during cyclic heating.

The alloy is easily weldable and formable, and exhibits high resistance to degradation by sulfur oxides, which is essential for combustion applications. Additionally, the microstructure remains stable under prolonged thermal stress, ensuring structural integrity.

Thanks to this combination of properties, Haynes® 188 is a preferred material in demanding thermal applications.

Applications of Haynes® Alloy 188

Haynes® Alloy 188 is primarily used in aerospace and energy technology, particularly in gas turbine components where high temperatures and oxidative conditions are present. Typical applications include:

• Combustors

• Flame Holders

• Transition Ducts in gas turbines

• Components in Combustion Systems and Heat Shields

• Furnace and Heat-Resistant Structures in industrial installations

The combination of weldability, oxidation resistance, and high-temperature performance makes Haynes® 188 exceptionally suitable for structural applications under extreme thermal stress.

Haynes® Alloy 188 is the superalloy for reliable performance in high-temperature, chemically aggressive combustion environments.