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ACI-ASTM CA40F Steel vs. R05252 Alloy

ACI-ASTM CA40F steel belongs to the iron alloys classification, while R05252 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. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ACI-ASTM CA40F steel and the bottom bar is R05252 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13
23
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 770
310
Tensile Strength: Yield (Proof), MPa 550
220

Thermal Properties

Latent Heat of Fusion, J/g 280
140
Specific Heat Capacity, J/kg-K 480
140
Thermal Expansion, µm/m-K 10
6.7

Otherwise Unclassified Properties

Density, g/cm3 7.7
17
Embodied Water, L/kg 100
600

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
63
Resilience: Unit (Modulus of Resilience), kJ/m3 790
120
Stiffness to Weight: Axial, points 14
6.5
Stiffness to Weight: Bending, points 25
12
Strength to Weight: Axial, points 28
5.2
Strength to Weight: Bending, points 24
6.1
Thermal Shock Resistance, points 28
17

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
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
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
88.8 to 91
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
9.0 to 11