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ACI-ASTM CA6NM Steel vs. AWS E80C-B8

Both ACI-ASTM CA6NM steel and AWS E80C-B8 are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 28 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 CA6NM steel and the bottom bar is AWS E80C-B8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
19
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 850
620
Tensile Strength: Yield (Proof), MPa 620
540

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
25
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
9.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.1
Embodied Energy, MJ/kg 34
28
Embodied Water, L/kg 110
89

Common Calculations

PREN (Pitting Resistance) 15
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
22
Strength to Weight: Bending, points 26
21
Thermal Diffusivity, mm2/s 6.7
6.9
Thermal Shock Resistance, points 31
17

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 11.5 to 14
8.0 to 10.5
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 78.4 to 84.6
85.5 to 90.6
Manganese (Mn), % 0 to 1.0
0.4 to 1.0
Molybdenum (Mo), % 0.4 to 1.0
0.8 to 1.2
Nickel (Ni), % 3.5 to 4.5
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5