Key features: Excellent high-temperature strength, low thermal expansion and good oxidation resistance.
Haynes Alloy 242 is an age-hardenable nickel-molybdenum-chromium alloy with strength derived from long-range ordered reactions at aging. It has tensile and creep strength properties up to 1300°F (705°C), twice as much as solution-strengthened alloys, but is highly ductile under aging conditions. Alloy 242 has much lower thermal properties than most other alloys and has very good oxidation resistance at temperatures up to 1500°F (815°C). Other attractive properties include excellent low-cycle fatigue properties, very good thermal stability, and resistance to high-temperature fluorine and fluoride environments.
Produce. Haynes alloy 242 has very good forming and welding properties in the annealed state. It can be forged by conventional techniques or otherwise hot-worked, and is easy to cold form. Welding can be performed under annealed conditions by standard tungsten gas arc welding (GTAW) or gas metal arc (GMAW) techniques. It is recommended to use matching ingredients to fill metals. For more information on molding and manufacturing, please contact Haines International.
Haynes242 Applications:
Sealing rings, accommodating rings, air duct segments, housings, fasteners, rocket nozzles, pumps, honeycomb structures.
Chemical processing: such as high-temperature HF steam fluorine-containing treatment process, fluoroelastomer treatment equipment, etc.
Haynes242 Chemical Composition (Typical):
Nickel: Margin. Molybdenum: 2400 - 26.00
Chromium: 700 - 9.00
Iron: 2 max00
Cobalt: 2 max50
Manganese: 0 max80
Silicon: 0 max80
Aluminum: 0 max50
Carbon: 0 max03
Boron: 0 max006 Copper: 0 max50 Hastelloy