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R05240 Alloy vs. SAE-AISI S2 Steel

R05240 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI S2 steel belongs to the iron alloys. There are 14 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is R05240 alloy and the bottom bar is SAE-AISI S2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
190
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 57
72
Tensile Strength: Ultimate (UTS), MPa 270
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Specific Heat Capacity, J/kg-K 190
470
Thermal Expansion, µm/m-K 6.8
11

Otherwise Unclassified Properties

Density, g/cm3 14
7.8
Embodied Water, L/kg 460
49

Common Calculations

Stiffness to Weight: Axial, points 6.3
13
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 5.4
24 to 69
Strength to Weight: Bending, points 6.8
22 to 44
Thermal Shock Resistance, points 18
23 to 68

Alloy Composition

Carbon (C), % 0 to 0.010
0.4 to 0.55
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
96 to 98.1
Manganese (Mn), % 0
0.3 to 0.5
Molybdenum (Mo), % 0 to 0.020
0.3 to 0.6
Nickel (Ni), % 0 to 0.010
0 to 0.3
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 0.030
Silicon (Si), % 0 to 0.0050
0.9 to 1.2
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Vanadium (V), % 0
0 to 0.5