PHYSICAL CHARACTERISTICS OF STEEL

  SUS410 SUS405 SUS444 SUS304 SUS316 Mild Steel
  Density (g/cm3) 7.75 7.75 7.75 7.93 7.98 7.85
  Electric resistance (mΩ.cm) 57 61 60 72 74 16
  Magnetism (Annealed material) Yes Yes Yes Yes Yes Yes
  Specific heat (J/kg˚C) 460 502 460 502 502 460

  Thermal conductivity

  (W/m.˚C)

100˚C 24.9 25.1 25.9 16.3 16.3 57.7
500˚C 28.7 - - 21.5 21.5 41.0

  Thermal expansion

  coefficient (x10-6/˚C)

0 ~ 100˚C 9.9 11.0 10.6 17.3 16.0 11.7
0 ~ 650˚C 11.7 13.5 11.5 18.9 18.5 14.6
  Young's modulus x 103 (kgf/mm2) 20.4 20.4 20.4 19.7 19.7 21.0
  Yield strength (kgf/mm2) 40 40 37 26 27 32
  Tensile strength (kgf/mm2) 62 56 53 57 57 47
  Elongation (%) 25 31 35 58 57 31
  Hardness (HB) 175 156 160 153 148 141