Grade 300 Maraging Steel
Other Steels
annealed
Property Overview
Density8.2g/cm³
Elastic Modulus190GPa
Tensile Strength1030MPa
Yield Strength760MPa
Brinell HardnessUnknown
Maximum Service TemperatureUnknown
Chemical Composition
C
0 to 0.030%
NI
18 to 19%
MO
4.6 to 5.2%
MN
0 to 0.1%
SI
0 to 0.1%
P
0 to 0.010%
S
0 to 0.010%
TI
0.5 to 0.8%
AL
0.050 to 0.15%
CO
8.5 to 9.5%
B
0 to 0.0030%
CA
0 to 0.050%
ZR
0 to 0.020%
FE
65 to 68.4%
Mechanical
Compressive (Crushing) Strength
730 MPa
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
18 %
Poisson's Ratio
0.3
Shear Modulus
75 GPa
Shear Strength
640 MPa
Tensile Strength: Ultimate (UTS)
1030 MPa
Tensile Strength: Yield (Proof)
760 MPa
Hardness
Rockwell C Hardness
31
Physical
Density
8.2 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Melting Completion (Liquidus)
1480 °C
Melting Onset (Solidus)
1430 °C
Specific Heat Capacity
450 J/kg-K
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
31 points
Calculated
PREN (Pitting Resistance)
16
Resilience: Ultimate (Unit Rupture Work)
170 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1490 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
35 points
Strength to Weight: Bending
28 points
Environmental
Base Metal Price
34 % relative
Embodied Carbon
5.1 kg CO 2 /kg material
Embodied Energy
68 MJ/kg
Embodied Energy
68 MJ/kg 29 x 10 3 BTU/lb
Embodied Water
150 L/kg
Embodied Water
150 L/kg 17 gal/lb
Registered Designations & Aliases
Grade 300 Maraging Steel