Stainless Steel - Grade 431 (UNS S43100)

Material: Stainless Steel - Grade 431 (UNS S43100)
Composition: Fe/<.2C/15-18Cr/1.25-3Ni/<1Mn/<1Si/<.04P/<.03S
Property Minimum Value (S.I.) Maximum Value (S.I.) Units (S.I.) Minimum Value (Imp.) Maximum Value (Imp.) Units (Imp.)
Atomic Volume (average) 0.007 0.0073 m3/kmol 427.166 445.473 in3/kmol
Density 7.7 7.9 Mg/m3 480.696 493.181 lb/ft3
Energy Content 86 105 MJ/kg 9317.13 11375.6 kcal/lb
Bulk Modulus 140 163 GPa 20.3053 23.6411 106 psi
Compressive Strength 925 1135 MPa 134.16 164.618 ksi
Ductility 0.12 0.2 0.12 0.2 NULL
Elastic Limit 925 1135 MPa 134.16 164.618 ksi
Endurance Limit 494 572 MPa 71.6486 82.9615 ksi
Fracture Toughness 33 57 MPa.m1/2 30.0315 51.8727 ksi.in1/2
Hardness 3800 4400 MPa 551.144 638.166 ksi
Loss Coefficient 0.00032 0.0004 0.00032 0.0004 NULL
Modulus of Rupture 925 1135 MPa 134.16 164.618 ksi
Poisson's Ratio 0.275 0.285 0.275 0.285 NULL
Shear Modulus 73 83 GPa 10.5878 12.0381 106 psi
Tensile Strength 1230 1510 MPa 178.396 219.007 ksi
Young's Modulus 190 210 GPa 27.5572 30.4579 106 psi
Glass Temperature K °F
Latent Heat of Fusion 260 285 kJ/kg 111.779 122.527 BTU/lb
Maximum Service Temperature 473 523 K 391.73 481.73 °F
Melting Point 1698 1803 K 2596.73 2785.73 °F
Minimum Service Temperature 200 230 K -99.67 -45.67 °F
Specific Heat 450 500 J/kg.K 0.348236 0.386929 BTU/lb.F
Thermal Conductivity 20 27 W/m.K 37.4407 50.5449 BTU.ft/h.ft2.F
Thermal Expansion 9 11 10-6/K 16.2 19.8 10-6/°F
Breakdown Potential MV/m V/mil
Dielectric Constant NULL
Resistivity 67 77 10-8 ohm.m 67 77 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 3
UV 5
Wear 4
Weak Acid 5
Weak Alkalis 5

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