Chemical composition Element Weight percent Element Weight percent Ni Balance Mo 25 Cr 8 Fe 2 max Co 1 max Mn 0.8 max Si 0.8 max Al 0.5 max C 0.03 max B 0.006 max

Mechanical properties Bar and rings, annealed and aged. Manufacturer typical tensile data. Test temperature °C 0.2% yield MPa Tensile MPa Elongation % RT 845 1290 33.7 538 540 1080 38.3 649 570 1000 33.2 760 310 730 44.3 Source: Haynes International 242 alloy data. Typical values; not purchase acceptance limits.

Application areas Gas turbine seal and containment rings, casings and duct segments High-temperature fasteners and bolting Rocket nozzles and pumps Equipment exposed to hot hydrofluoric acid vapor or fluoride salts Fluoroelastomer extrusion screws

Chemical composition Element Weight percent Element Weight percent Ni Balance Mo 25 Cr 8 Fe 2 max Co 1 max Mn 0.8 max Si 0.8 max Al 0.5 max C 0.03 max B 0.006 max

Mechanical properties Bar and rings, annealed and aged. Manufacturer typical tensile data. Test temperature °C 0.2% yield MPa Tensile MPa Elongation % RT 845 1290 33.7 538 540 1080 38.3 649 570 1000 33.2 760 310 730 44.3 Source: Haynes International 242 alloy data. Typical values; not purchase acceptance limits.

Application areas Gas turbine seal and containment rings, casings and duct segments High-temperature fasteners and bolting Rocket nozzles and pumps Equipment exposed to hot hydrofluoric acid vapor or fluoride salts Fluoroelastomer extrusion screws

Alloy 242/UNS N10242

Grade: Haynes 242/UNS N10242

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

HAYNES 242 is an age-hardenable nickel molybdenum chromium alloy strengthened by long-range ordering. It combines high tensile and creep strength with low thermal expansion and useful ductility after aging. These characteristics support dimensionally stable turbine structures and high-temperature fasteners. Its resistance to fluorine-containing environments also makes it useful in selected chemical processes and fluoroelastomer processing equipment.