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ACI-ASTM CF20 Steel vs. AWS BAg-1

ACI-ASTM CF20 steel belongs to the iron alloys classification, while AWS BAg-1 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF20 steel and the bottom bar is AWS BAg-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
75
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
28
Tensile Strength: Ultimate (UTS), MPa 530
170

Thermal Properties

Latent Heat of Fusion, J/g 300
110
Melting Completion (Liquidus), °C 1420
620
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 480
280
Thermal Expansion, µm/m-K 17
23

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.2
Embodied Carbon, kg CO2/kg material 3.1
44
Embodied Energy, MJ/kg 44
690

Common Calculations

Stiffness to Weight: Axial, points 14
4.6
Stiffness to Weight: Bending, points 25
15
Strength to Weight: Axial, points 19
5.1
Strength to Weight: Bending, points 19
7.4
Thermal Shock Resistance, points 11
7.0

Alloy Composition

Cadmium (Cd), % 0
23 to 25
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0
14 to 16
Iron (Fe), % 64.2 to 74
0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
44 to 46
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
14 to 18
Residuals, % 0
0 to 0.15