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ACI-ASTM CB7Cu-2 Steel vs. R05240 Alloy

ACI-ASTM CB7Cu-2 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 (12, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB7Cu-2 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, % 5.7 to 11
25
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 75
57
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
270
Tensile Strength: Yield (Proof), MPa 760 to 1180
170

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Specific Heat Capacity, J/kg-K 480
190
Thermal Expansion, µm/m-K 11
6.8

Otherwise Unclassified Properties

Density, g/cm3 7.8
14
Embodied Water, L/kg 130
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
59
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
90
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
13
Strength to Weight: Axial, points 34 to 48
5.4
Strength to Weight: Bending, points 28 to 35
6.8
Thermal Shock Resistance, points 32 to 45
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.010
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 3.2
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 73.6 to 79
0 to 0.010
Manganese (Mn), % 0 to 0.7
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 4.5 to 5.5
0 to 0.010
Niobium (Nb), % 0 to 0.35
35 to 42
Nitrogen (N), % 0 to 0.050
0 to 0.010
Oxygen (O), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
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