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SAE-AISI A3 Steel vs. R05240 Alloy

SAE-AISI A3 steel belongs to the iron alloys classification, while R05240 alloy belongs to the otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A3 steel and the bottom bar is R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
150
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
57
Tensile Strength: Ultimate (UTS), MPa 700 to 2150
270

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Specific Heat Capacity, J/kg-K 470
190
Thermal Expansion, µm/m-K 12
6.8

Otherwise Unclassified Properties

Density, g/cm3 7.8
14
Embodied Water, L/kg 78
460

Common Calculations

Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
13
Strength to Weight: Axial, points 25 to 77
5.4
Strength to Weight: Bending, points 23 to 48
6.8
Thermal Shock Resistance, points 23 to 70
18

Alloy Composition

Carbon (C), % 1.2 to 1.3
0 to 0.010
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 88.7 to 92
0 to 0.010
Manganese (Mn), % 0.4 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.4
0 to 0.020
Nickel (Ni), % 0 to 0.3
0 to 0.010
Niobium (Nb), % 0
35 to 42
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.0050
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Vanadium (V), % 0.8 to 1.4
0