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R05240 Alloy vs. Grade 250 Maraging Steel

R05240 alloy belongs to the otherwise unclassified metals classification, while grade 250 maraging steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R05240 alloy and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
190
Elongation at Break, % 25
7.3 to 17
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 57
75
Tensile Strength: Ultimate (UTS), MPa 270
970 to 1800
Tensile Strength: Yield (Proof), MPa 170
660 to 1740

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Specific Heat Capacity, J/kg-K 190
450
Thermal Expansion, µm/m-K 6.8
12

Otherwise Unclassified Properties

Density, g/cm3 14
8.2
Embodied Water, L/kg 460
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
130 to 150
Stiffness to Weight: Axial, points 6.3
13
Stiffness to Weight: Bending, points 13
23
Strength to Weight: Axial, points 5.4
33 to 61
Strength to Weight: Bending, points 6.8
26 to 40
Thermal Shock Resistance, points 18
29 to 54

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.010
0 to 0.030
Cobalt (Co), % 0
7.0 to 8.5
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
66.3 to 71.1
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0 to 0.020
4.6 to 5.2
Nickel (Ni), % 0 to 0.010
17 to 19
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.0050
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0.3 to 0.5
Tungsten (W), % 0 to 0.050
0
Zirconium (Zr), % 0
0 to 0.020