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ACI-ASTM CA40 Steel vs. AWS ER120S-1

Both ACI-ASTM CA40 steel and AWS ER120S-1 are iron alloys. They have 87% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is AWS ER120S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
17
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 910
930
Tensile Strength: Yield (Proof), MPa 860
830

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.2
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 28
25
Embodied Water, L/kg 100
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
1850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
33
Strength to Weight: Bending, points 27
27
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 33
27

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.2 to 0.4
0 to 0.1
Chromium (Cr), % 11.5 to 14
0 to 0.6
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 81.5 to 88.3
92.4 to 96.1
Manganese (Mn), % 0 to 1.0
1.4 to 1.8
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.65
Nickel (Ni), % 0 to 1.0
2.0 to 2.8
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.5
0.25 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.030
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.5