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SAE-AISI S4 Steel vs. ACI-ASTM CC50 Steel

Both SAE-AISI S4 steel and ACI-ASTM CC50 steel are iron alloys. They have 70% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S4 steel and the bottom bar is ACI-ASTM CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 670 to 2140
430

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 44
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
14
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 29
39
Embodied Water, L/kg 48
170

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24 to 77
16
Strength to Weight: Bending, points 22 to 48
17
Thermal Diffusivity, mm2/s 12
4.5
Thermal Shock Resistance, points 20 to 65
14

Alloy Composition

Carbon (C), % 0.5 to 0.65
0 to 0.5
Chromium (Cr), % 0.1 to 0.5
26 to 30
Iron (Fe), % 95.2 to 96.9
62.9 to 74
Manganese (Mn), % 0.6 to 1.0
0 to 1.0
Nickel (Ni), % 0
0 to 4.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.8 to 2.3
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0.15 to 0.35
0