Super Invar Properties

Super Invar Alloy Physical Properties

Density lb/cu in 0.294
Specific Gravity   8.15
Curie Temp °F 535
  °C 279
Melting Point °F 2600
  °C 1454
Electrical Resistivity Micro-ohm-cm 80
  Micro-ohm-cm 481.3
Thermal Conductivity W/cm °C ----
  BTU-in/sq. ft-hr- ----
Specific Heat Cal/g- °C ----
  BTU/lbm- °F ----
Thermal Expansion ppm/°F
(75°F to 842°F)
----
  ppm/°C
(25°C to 450°F)
----


Super Invar Alloy Mechanical Properties

Tensile Strength ksi 70
  MPa 483
Yield Strength ksi 40
  MPa 276
Elongation % in 2 in. 40
Typical Hardness Ann. Rockwell HRB 75
Modulus of Elasticity Mpsi 21 x 103
  kMPa ----


Super Invar Alloy Chemistry
maximum % unless noted

Iron Bal
Nominal Nickel 32
Nominal Cobalt 5
Carbon 0.02
Silicon 0.25
Maganese 0.04