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SAE-AISI S2 Steel vs. ACI-ASTM CB7Cu-1 Steel

Both SAE-AISI S2 steel and ACI-ASTM CB7Cu-1 steel are iron alloys. They have 77% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S2 steel and the bottom bar is ACI-ASTM CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 670 to 1940
960 to 1350

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1500
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
2.6
Embodied Energy, MJ/kg 30
38
Embodied Water, L/kg 49
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 69
34 to 48
Strength to Weight: Bending, points 22 to 44
28 to 35
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 23 to 68
32 to 45

Alloy Composition

Carbon (C), % 0.4 to 0.55
0 to 0.070
Chromium (Cr), % 0
15.5 to 17.7
Copper (Cu), % 0 to 0.25
2.5 to 3.2
Iron (Fe), % 96 to 98.1
72.3 to 78.4
Manganese (Mn), % 0.3 to 0.5
0 to 0.7
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 0 to 0.3
3.6 to 4.6
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.9 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 0.5
0