625 round bars, composed of a nickel-chromium-molybdenum-niobium superalloy (UNS N06625), are engineered for exceptional performance in high-temperature and corrosive environments. The alloy's unique microstructure, stabilized by niobium, offers outstanding resistance to oxidation, carburization, and stress corrosion cracking up to 1,093°C. Newstar Hardware's 625 round bars feature a minimum tensile strength of 760 MPa and yield strength of 345 MPa, with elongation exceeding 40%, balancing robustness with formability. Manufactured to ASTM B446 and ASME SB-446 standards, these bars are available in diameters from 12 mm to 300 mm, with hot-rolled, cold-drawn, or annealed finishes. The alloy's resistance to chloride-induced stress corrosion and pitting makes it ideal for offshore oil equipment, chemical reactors, and gas turbine components. Its high-temperature stability enables use in heat exchangers, furnace parts, and aerospace applications where materials must withstand extreme thermal cycles. Rigorous testing includes ultrasonic inspection for internal defects and intergranular corrosion checks, ensuring reliability in critical sectors like energy production and aerospace manufacturing. With excellent weldability and machinability, 625 round bars cater to complex fabrication needs while maintaining mechanical properties across diverse service conditions.
