An Introduction to Chromium

Material: An Introduction to Chromium
Composition: >99%Cr typically
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.0072 0.0074 m3/kmol 439.371 451.575 in3/kmol
Density 7.1 7.2 Mg/m3 443.239 449.482 lb/ft3
Energy Content 20 120 MJ/kg 2166.77 13000.6 kcal/lb
Bulk Modulus 136 170 GPa 19.7251 24.6564 106 psi
Compressive Strength 185 430 MPa 26.832 62.3662 ksi
Ductility 0.02 0.55 0.02 0.55 NULL
Elastic Limit 185 430 MPa 26.832 62.3662 ksi
Endurance Limit 145 380 MPa 21.0305 55.1143 ksi
Fracture Toughness 120 150 MPa.m1/2 109.206 136.507 ksi.in1/2
Hardness 2000 2700 MPa 290.076 391.602 ksi
Loss Coefficient 0.0002 0.0007 0.0002 0.0007 NULL
Modulus of Rupture 185 430 MPa 26.832 62.3662 ksi
Poisson's Ratio 0.2 0.22 0.2 0.22 NULL
Shear Modulus 100 120 GPa 14.5038 17.4045 106 psi
Tensile Strength 370 760 MPa 53.664 110.229 ksi
Young's Modulus 245 285 GPa 35.5342 41.3357 106 psi
Glass Temperature K °F
Latent Heat of Fusion 260 295 kJ/kg 111.779 126.827 BTU/lb
Maximum Service Temperature 640 780 K 692.33 944.33 °F
Melting Point 2100 2150 K 3320.33 3410.33 °F
Minimum Service Temperature 0 0 K -459.67 -459.67 °F
Specific Heat 440 520 J/kg.K 0.340498 0.402406 BTU/lb.F
Thermal Conductivity 84 94 W/m.K 157.251 175.971 BTU.ft/h.ft2.F
Thermal Expansion 6 7 10-6/K 10.8 12.6 10-6/°F
Breakdown Potential MV/m V/mil
Dielectric Constant NULL
Resistivity 12.7 15 10-8 ohm.m 12.7 15 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