Invar - Nickel Iron Alloy

Material: Invar - Nickel Iron Alloy
Composition: blank
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0068 0.0071 m3/kmol 414.961 433.268 in3/kmol
Density 8.1 8.2 Mg/m3 505.667 511.91 lb/ft3
Energy Content 50 200 MJ/kg 5416.93 21667.7 kcal/lb
Bulk Modulus 106 112 GPa 15.374 16.2442 106 psi
Compressive Strength 240 725 MPa 34.8091 105.152 ksi
Ductility 0.06 0.45 0.06 0.45 NULL
Elastic Limit 240 725 MPa 34.8091 105.152 ksi
Endurance Limit 185 405 MPa 26.832 58.7402 ksi
Fracture Toughness 120 150 MPa.m1/2 109.206 136.507 ksi.in1/2
Hardness 1200 2400 MPa 174.045 348.091 ksi
Loss Coefficient 0.0003 0.0011 0.0003 0.0011 NULL
Modulus of Rupture 240 725 MPa 34.8091 105.152 ksi
Poisson's Ratio 0.28 0.3 0.28 0.3 NULL
Shear Modulus 54 58 GPa 7.83204 8.41219 106 psi
Tensile Strength 445 810 MPa 64.5418 117.481 ksi
Young's Modulus 137 145 GPa 19.8702 21.0305 106 psi
Glass Temperature K °F
Latent Heat of Fusion 270 290 kJ/kg 116.079 124.677 BTU/lb
Maximum Service Temperature 600 700 K 620.33 800.33 °F
Melting Point 1690 1710 K 2582.33 2618.33 °F
Minimum Service Temperature 0 0 K -459.67 -459.67 °F
Specific Heat 505 525 J/kg.K 0.390798 0.406276 BTU/lb.F
Thermal Conductivity 12 15 W/m.K 22.4644 28.0805 BTU.ft/h.ft2.F
Thermal Expansion 0.5 2 10-6/K 0.9 3.6 10-6/°F
Breakdown Potential MV/m V/mil
Dielectric Constant NULL
Resistivity 75 85 10-8 ohm.m 75 85 10-8 ohm.m
Environmental Properties
  Resistance Factors
1=Poor 5=Excellent
Flammability 5
Fresh Water 5
Organic Solvents 5
Oxidation at 500C 5
Sea Water 5
Strong Acid 4
Strong Alkalis 5
UV 5
Wear 4
Weak Acid 5
Weak Alkalis 5

This data is provided subject to AZoM.com's terms and conditions. Data reproduced with permission of Granta Design Limited www.grantadesign.com

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