Iridium - Properties and Applications

Material: Iridium - Properties and Applications
Composition: >99.9%Ir typically
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0085 0.0087 m3/kmol 518.702 530.906 in3/kmol
Density 22.4 22.6 Mg/m3 1398.39 1410.87 lb/ft3
Energy Content 500 2100 MJ/kg 54169.3 227511 kcal/lb
Bulk Modulus 356 388 GPa 51.6334 56.2746 106 psi
Compressive Strength 200 1190 MPa 29.0075 172.595 ksi
Ductility 0.1 0.22 0.1 0.22 NULL
Elastic Limit 200 1190 MPa 29.0075 172.595 ksi
Endurance Limit 220 660 MPa 31.9083 95.7248 ksi
Fracture Toughness 120 150 MPa.m1/2 109.206 136.507 ksi.in1/2
Hardness 2000 7600 MPa 290.076 1102.29 ksi
Loss Coefficient 0.0001 0.0007 0.0001 0.0007 NULL
Modulus of Rupture 200 1190 MPa 29.0075 172.595 ksi
Poisson's Ratio 0.255 0.265 0.255 0.265 NULL
Shear Modulus 206 218 GPa 29.8778 31.6182 106 psi
Tensile Strength 550 1320 MPa 79.7708 191.45 ksi
Young's Modulus 525 545 GPa 76.1448 79.0455 106 psi
Glass Temperature K °F
Latent Heat of Fusion 130 145 kJ/kg 55.8897 62.3385 BTU/lb
Maximum Service Temperature 820 1000 K 1016.33 1340.33 °F
Melting Point 2710 2720 K 4418.33 4436.33 °F
Minimum Service Temperature 0 K -459.67 °F
Specific Heat 125 140 J/kg.K 0.0967323 0.10834 BTU/lb.F
Thermal Conductivity 140 148 W/m.K 262.085 277.061 BTU.ft/h.ft2.F
Thermal Expansion 6.5 7 10-6/K 11.7 12.6 10-6/°F
Breakdown Potential MV/m V/mil
Dielectric Constant NULL
Resistivity 5 6 10-8 ohm.m 5 6 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 5
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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