Materials database: Haynes 242

1. Chemical composition

65Ni-25Mo-8Cr-2.5Co*-2Fe*-0.8Mn*-0.8Si*-0.5Al*0.5Cu*-0.03C*-0.006B*

2. Electric resistivity

3. Specific Heat

(Courtesy of Dr. Luis Balicas of NHMFL)

 4. Thermal Conductivity
 
 
 290-1200K, Haynes International, 7-290 K, Calculated value
 
 
 (Source: NHMFL data 2006)
 
 5. Thermal contraction
 
 1000 K to 300 K: 0.91%
 300K to 4.2 K: 0.2%

6. Mechanical properties at 4K

 Some properties at room temperature (25 °C) 
 
 Density:  9.05  g/cm2
 Thermal conductivity:  11.3 W/m-K
 Coefficient of thermal expansion:  10.8 micron/m-K
 Young's modulus:  229 GPa
 Tensile strength:  1270 MPa
 Yeild strength:  780 MPa
 Elongation:  38.1 %
 Area reduction:  46.6 %
 
 
    Young's Yield Tensile Elongation Reduction
  Temp Modulus StrengthStrength of Area
  K GPa MPa MPa % %
 
 
 295 217 516 1104 56 49
 As 77 235 737 1518 64 50
 Rec'd 4 238 860 1675 55 45
 295 221 1098 1527 34 30
 Aged 77 237 1264 1863 28 23
 4 238 1340 1968 26 21
 
 * Aging: 700 °C for 100 hours in Argon.
 
 Reference:
 
 \\tesla\MS&T\MD&C\Mat'lCharLab\4PcMTS Data\Hybrid\2003\03-022 Haynes\haynesAlloys1
 \\tesla\MS&T\MD&C\Mat'lCharLab\April05Walsh5pcMTS-DATA\Hybrid\2005\05-001 Conduit\05-001 Table
 
 
 Fracture toughness at 4.2 K
 As Rec'd:  210 MPa*m1/2
  Aged:  142 MPa*m1/2
 Reference: SCH review presentation: R. Walsh
 
 

 
 
 Reference: NHMFL-MD&C Nov. 2004
 \\tesla\MS&T\MD&C\Mat'lCharLab\4PcMTS Data\Hybrid\2004\316LN and Haynes Strs-strn plot