Brian Fasteners, located in Houston, USA, provides Haynes 625SQ Bars and Rods designed for tough environments that require strength, corrosion resistance, and stability. The “SQ” or Solution-Quenched condition of this alloy improves its resistance to fatigue and thermal cracking. It is ideal for aerospace, marine, and chemical processing applications. Haynes 625SQ offers great weldability and oxidation resistance. Brian Fasteners supplies bars and rods with precise dimensional control and full traceability to meet industry needs for critical high-performance systems, ensuring material consistency and reliability.
Haynes 625SQ includes about 58% Ni, 20-23% Cr, 8-10% Mo, 4% Nb, and trace Fe. It delivers a tensile strength close to 880 MPa, a yield strength of around 500 MPa, and about 30% elongation. This solution-annealed grade offers better microstructural stability, fatigue life, and corrosion resistance. It performs well in environments with chlorides, acidic compounds, and oxidizing agents, with temperature stability up to 980°C. Its improved grain structure makes it perfect for welded assemblies and high-stress components.
Yes, Haynes 625SQ rods can be customized in size and length according to specific requirements. Manufacturers typically offer tailored dimensions for various applications in industries requiring precise specifications.
Haynes 625SQ Rod is typically available in diameters ranging from 0.125" (3.175mm) to 3.000" (76.2mm), with custom sizes possible. Lengths usually range from 12" to 20' (3.66m).
Haynes 625SQ bars and rods offer excellent performance in high-temperature environments, with outstanding oxidation and carburization resistance, maintaining strength and integrity at elevated temperatures up to 1800°F (982°C).
The main application of Haynes 625SQ bars and rods is in high-performance applications requiring high strength, oxidation resistance, and weldability at elevated temperatures. The aerospace components such as turbine blades, seals, and exhaust systems make common usage because the material requires high thermal stability. It is used in chemical processing industries to handle corrosive environments and high-stress conditions in heat exchangers, reactor cores, and gas turbines. Another aspect is that Haynes 625SQ is also used in the marine environment for components such as shafts and propellers because it is resistant to seawater corrosion and can operate at extreme temperatures and mechanical stress.






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