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R05252 Alloy vs. S31727 Stainless Steel

R05252 alloy belongs to the otherwise unclassified metals classification, while S31727 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, 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 S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 310
630
Tensile Strength: Yield (Proof), MPa 220
270

Thermal Properties

Latent Heat of Fusion, J/g 140
290
Specific Heat Capacity, J/kg-K 140
470
Thermal Expansion, µm/m-K 6.7
16

Otherwise Unclassified Properties

Density, g/cm3 17
8.0
Embodied Water, L/kg 600
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
200
Resilience: Unit (Modulus of Resilience), kJ/m3 120
190
Stiffness to Weight: Axial, points 6.5
14
Stiffness to Weight: Bending, points 12
24
Strength to Weight: Axial, points 5.2
22
Strength to Weight: Bending, points 6.1
20
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 0
17.5 to 19
Copper (Cu), % 0
2.8 to 4.0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
53.7 to 61.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0 to 0.020
3.8 to 4.5
Nickel (Ni), % 0 to 0.010
14.5 to 16.5
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0.15 to 0.21
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 88.8 to 91
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 9.0 to 11
0