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Grade 300 Maraging Steel vs. 50Cr-50Ni-Cb Alloy

Grade 300 maraging steel belongs to the iron alloys classification, while 50Cr-50Ni-Cb alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is 50Cr-50Ni-Cb alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 6.5 to 18
5.6
Poisson's Ratio 0.3
0.26
Shear Modulus, GPa 75
84
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
620
Tensile Strength: Yield (Proof), MPa 760 to 1990
390

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 34
60
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 5.1
9.2
Embodied Energy, MJ/kg 68
130
Embodied Water, L/kg 150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
30
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35 to 68
21
Strength to Weight: Bending, points 28 to 43
20
Thermal Shock Resistance, points 31 to 62
14

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0 to 0.25
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 0
47 to 52
Cobalt (Co), % 8.5 to 9.5
0
Iron (Fe), % 65 to 68.4
0 to 1.0
Manganese (Mn), % 0 to 0.1
0 to 0.3
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
43.3 to 51.6
Niobium (Nb), % 0
1.4 to 1.7
Nitrogen (N), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.5 to 0.8
0 to 0.5
Zirconium (Zr), % 0 to 0.020
0