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R05252 Alloy vs. S40920 Stainless Steel

R05252 alloy belongs to the otherwise unclassified metals classification, while S40920 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is R05252 alloy and the bottom bar is S40920 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
22
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 310
430
Tensile Strength: Yield (Proof), MPa 220
190

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Specific Heat Capacity, J/kg-K 140
480
Thermal Expansion, µm/m-K 6.7
10

Otherwise Unclassified Properties

Density, g/cm3 17
7.7
Embodied Water, L/kg 600
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
78
Resilience: Unit (Modulus of Resilience), kJ/m3 120
97
Stiffness to Weight: Axial, points 6.5
14
Stiffness to Weight: Bending, points 12
25
Strength to Weight: Axial, points 5.2
15
Strength to Weight: Bending, points 6.1
16
Thermal Shock Resistance, points 17
15

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
85.1 to 89.4
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0 to 0.5
Niobium (Nb), % 0 to 0.1
0 to 0.1
Nitrogen (N), % 0 to 0.010
0 to 0.030
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tantalum (Ta), % 88.8 to 91
0
Titanium (Ti), % 0 to 0.010
0.15 to 0.5
Tungsten (W), % 9.0 to 11
0