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R05252 Alloy vs. S38815 Stainless Steel

R05252 alloy belongs to the otherwise unclassified metals classification, while S38815 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, 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 S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
34
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 310
610
Tensile Strength: Yield (Proof), MPa 220
290

Thermal Properties

Latent Heat of Fusion, J/g 140
370
Specific Heat Capacity, J/kg-K 140
500
Thermal Expansion, µm/m-K 6.7
15

Otherwise Unclassified Properties

Density, g/cm3 17
7.5
Embodied Water, L/kg 600
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
170
Resilience: Unit (Modulus of Resilience), kJ/m3 120
220
Stiffness to Weight: Axial, points 6.5
14
Stiffness to Weight: Bending, points 12
25
Strength to Weight: Axial, points 5.2
22
Strength to Weight: Bending, points 6.1
21
Thermal Shock Resistance, points 17
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 0
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
56.1 to 67
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0 to 0.020
0.75 to 1.5
Nickel (Ni), % 0 to 0.010
13 to 17
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.0050
5.5 to 6.5
Sulfur (S), % 0
0 to 0.020
Tantalum (Ta), % 88.8 to 91
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 9.0 to 11
0