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R05240 Alloy vs. S31655 Stainless Steel

R05240 alloy belongs to the otherwise unclassified metals classification, while S31655 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.

For each property being compared, the top bar is R05240 alloy and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
200
Elongation at Break, % 25
39
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 57
78
Tensile Strength: Ultimate (UTS), MPa 270
710
Tensile Strength: Yield (Proof), MPa 170
350

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Specific Heat Capacity, J/kg-K 190
480
Thermal Expansion, µm/m-K 6.8
16

Otherwise Unclassified Properties

Density, g/cm3 14
7.8
Embodied Water, L/kg 460
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
230
Resilience: Unit (Modulus of Resilience), kJ/m3 90
310
Stiffness to Weight: Axial, points 6.3
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 5.4
25
Strength to Weight: Bending, points 6.8
23
Thermal Shock Resistance, points 18
16

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
63.2 to 71.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0 to 0.020
0.5 to 1.5
Nickel (Ni), % 0 to 0.010
8.0 to 9.5
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0.14 to 0.25
Oxygen (O), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0