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SAE-AISI 1040 Steel vs. R05240 Alloy

SAE-AISI 1040 steel belongs to the iron alloys classification, while R05240 alloy belongs to the otherwise unclassified metals. There are 18 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 1040 steel and the bottom bar is R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
150
Elongation at Break, % 13 to 20
25
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
57
Tensile Strength: Ultimate (UTS), MPa 570 to 640
270
Tensile Strength: Yield (Proof), MPa 320 to 530
170

Thermal Properties

Latent Heat of Fusion, J/g 250
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 46
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
59
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
90
Stiffness to Weight: Axial, points 13
6.3
Stiffness to Weight: Bending, points 24
13
Strength to Weight: Axial, points 20 to 23
5.4
Strength to Weight: Bending, points 19 to 21
6.8
Thermal Shock Resistance, points 18 to 20
18

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.010
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 98.6 to 99.03
0 to 0.010
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
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 0.040
0
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0 to 0.050
0
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050