DESCRIPTION
HAYNES® 242® alloy is an age-hardenable nickel-molybdenum chromium alloy which can be strengthened through an ordering reaction upon aging, while maintaining high ductility. The alloy’s tensile and creep strength properties up to 1300°F (705°C) are considerably improved compared to solid solution strengthened alloys. The coefficient of thermal expansion for 242® alloy are also lower than most other alloys, and it has very good oxidation resistance up to 1500°F (815°C). Other notable characteristics include excellent low cycle fatigue properties and resistance to high-temperature fluorine rich environments.
Applicable Specifications
Wire & Bar:
ASTM B434 (chemistry only)
Applications
Seal rings, Containment rings, Duct segments, Casings, Fasteners, Nozzles, Pumps, Fluoroelastomer process equipment, HF acid processing equipment, Springs
Industries Supplied
Aerospace, Industrial Heat Treating, Power Generation, Chemical Processing
Nominal Composition
C: 0.05 – 0.15
Mn: 0.3 – 1.0
Si: 0.25 – 0.75
P: 0.03 max
S: 0.015 max
B: 0.015 max
Ni: Bal min
Cr: 20.0 – 24.0
Co: 5.0 max
Mo: 1.0 – 3.0
La: 0.005 – 0.05
W: 13.0 – 15.0
Al: 0.5 max
Fe: 3.0 max
Physical Properties
Density:
0.327 lb/in3, (9.05 g/cm3)
Modulus of Elasticity (E):
At 70°F (20°C): 33.2 x 103 ksi (229 GPa)
Coefficient of Expansion:
8.3 µin/in-°F (70-1800°F)
15.0 µm/m-°C (25-1000°C)
Electrical Resistivity:
48.0 µohm-in, (122.0 µohm-cm)
Thermal Conductivity:
75.7 Btu-in/ft2-hr-°F, (11.3 W/m-°C)
Typical Mechanical Properties
Annealed
- Heat Treatment: 1900-2050°F (1040-1120°C)
- Tensile Strength: 110-140 ksi (758-965 MPa)
- Suggested Operating Conditions: Up to 1500°F (815°C)
Aged
- Heat Treatment: 1200°F (650°C) 24-48 hours
- Tensile Strength: 170 ksi min (1172 MPa)
- Suggested Operating Conditions: Up to 1200°F (650°C)
Haynes® 242® is a registered trademark of Haynes International, Inc.
For further information Contact:
CONTACT US
Phone: 1.847.695.1900
Elgiloy Specialty Metals – Wire Products
356 N.Cross Street
Sycamore, IL 60178 USA
Limitation of Liability and Disclaimer of Warranty:
- The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
- Applications may be discussed, however, Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, does not recommend or endorse any material for any particular end use or application.
- The data included in this data sheet are typical values and may vary.
- Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
In no event will Elgiloy Specialty Metals, a Division of Combined Metals Company LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.
