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ACI-ASTM CA40F Steel vs. R05240 Alloy

ACI-ASTM CA40F 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 ACI-ASTM CA40F 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
25
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 76
57
Tensile Strength: Ultimate (UTS), MPa 770
270
Tensile Strength: Yield (Proof), MPa 550
170

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Specific Heat Capacity, J/kg-K 480
190
Thermal Expansion, µm/m-K 10
6.8

Otherwise Unclassified Properties

Density, g/cm3 7.7
14
Embodied Water, L/kg 100
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
59
Resilience: Unit (Modulus of Resilience), kJ/m3 790
90
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
13
Strength to Weight: Axial, points 28
5.4
Strength to Weight: Bending, points 24
6.8
Thermal Shock Resistance, points 28
18

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.010
Chromium (Cr), % 11.5 to 14
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 81.6 to 88.3
0 to 0.010
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0 to 0.020
Nickel (Ni), % 0 to 1.0
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 to 1.5
0 to 0.0050
Sulfur (S), % 0.2 to 0.4
0
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050