Chung Metal distributes Haynes 242 Bars and Rods—a nickel‑molybdenum‑chromium alloy that is age‑hardenable and designed for superior high temperature strength along with relatively low thermal expansion. Haynes 242 is intended for use in severe high‑temperature, high‑stress applications where there is a need for dimensional stability over temperature, oxidation resistance, and fatigue strength. Bars/rods are made from our material with tight chemistry control, accurate heat treatment, and uniform finish. Our products are chosen for seal applications in turbine engines, casings, containment rings, and other structural parts subject to cyclic thermal loading.
Haynes 242 (UNS N10242) contains nominal nickel balance, ~25% molybdenum, ~8% chromium; minor: iron (max ~2%), cobalt, manganese, silicon, aluminum, carbon (extremely low), and boron. It is age-hardenable through a long-range ordering mechanism that raises strength without loss of ductility. Mechanical properties in aged state provide tensile strength of approximately 845-950 MPa, yield strength (0.2% offset) ~760-830 MPa, elongation ~30-40% based on temper and cross section. It has good mechanical strength up to ~650‑700 °C, oxidation resistance up to ~815 °C and a low coefficient of thermal expansion over a wide range of temperature.
Yes, Haynes 242 bars are available in various lengths, typically customized according to the requirements of the customer, and can be cut to specific dimensions upon request.
Haynes 242 bars typically come in standard sizes ranging from 0.5 inches to 10 inches in diameter and lengths from 12 inches to 24 feet, depending on customer requirements.
To maintain Haynes 242 bars, regularly clean with non-abrasive methods, avoid exposure to harsh chemicals, store in a dry environment, and inspect for any signs of corrosion or damage.
Haynes 242 Rods and Bars are utilized in gas turbine and aerospace structural parts like seal rings, containment rings, duct segments, casings, fasteners, and rocket nozzles. Also in chemical process equipment, particularly where there is high-temperature vapor or corrosive gases (e.g., hydrofluoric acid vapor or fluoride salt solutions). The low thermal expansion of the alloy makes it beneficial in assemblies with tight clearances and low distortion upon temperature cycling. Also, it is beneficial in components experiencing cyclic loading, thermal fatigue, or where creep strength is desired but complete superalloy expense may not be justified.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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