Maraging Steel - Physical Properties

Physical Properties

  • Density: 8.1 g/cm³ (0.29 lb/in³)
  • Specific heat, mean for 0–100 °C (32–212 °F): 813 J/(kg·K) (0.108 Btu/(lb·°F))
  • Melting point: 2575 °F, 1413 °C
  • Thermal conductivity: 25.5 W·m/(m²·K)
  • Mean coefficient of thermal expansion: 11.3×10−6
  • Yield tensile strength: typically 1030–2420 MPa (150,000–350,000 psi)
  • Ultimate tensile strength: typically 1600–2500 MPa (230,000–360,000 psi). Grades exist up to 3500 MPa (500,000 psi)
  • Elongation at break: up to 15%
  • KIC fracture toughness: up to 175 MPa-m½
  • Young's modulus: 210 GPa
  • Shear modulus: 77 GPa
  • Bulk modulus: 140 GPa
  • Hardness (aged): 50 HRC (grade 250); 54 HRC (grade 300); 58 HRC (grade 350)

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