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ACI-ASTM CF8C Steel vs. AWS E80C-B2

Both ACI-ASTM CF8C steel and AWS E80C-B2 are iron alloys. They have 70% of their average alloy composition in common. There are 28 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 ACI-ASTM CF8C steel and the bottom bar is AWS E80C-B2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
22
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 530
630
Tensile Strength: Yield (Proof), MPa 260
530

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.6
Embodied Energy, MJ/kg 53
22
Embodied Water, L/kg 150
53

Common Calculations

PREN (Pitting Resistance) 20
3.0
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 170
740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 11
18

Alloy Composition

Carbon (C), % 0 to 0.080
0.050 to 0.12
Chromium (Cr), % 18 to 21
1.0 to 1.5
Iron (Fe), % 61.8 to 73
95.3 to 97.9
Manganese (Mn), % 0 to 1.5
0.4 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.65
Nickel (Ni), % 9.0 to 12
0 to 0.2
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0.25 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5