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Heat-resistant stud bolt

Heat-resistant stud bolts are made from special stainless steel alloys or nickel-chromium alloys to maintain mechanical and chemical stability at very high temperatures. These stud bolts have tensile strengths ranging from 80 to 140 ksi 550 to 965 MPa and a minimum yield strength of 40 ksi 275 MPa. Their typical operating temperature ranges from 600 to 1100 degrees Celsius, offering excellent resistance to oxidation and thermal corrosion. Standard diameters range from 1/4 inch to 2 inches, and threads are manufactured according to ASME B1.1 standards. Surface hardness varies between 250 and 350 Brinell, and they are capable of withstanding dynamic and impact loads.

In oil, gas, petrochemical, and power industries, heat-resistant stud bolts play a critical role in connecting high-temperature equipment. The manufacturing process includes specialized heat treatments like quenching and tempering to enhance hardness and fatigue resistance. Quality control involves tensile testing, hardness testing, chemical analysis, and non-destructive tests such as UT and PT. Using these stud bolts improves safety and equipment lifespan under severe thermal conditions and they are commonly employed in thermal systems, heat exchangers, and furnaces.

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