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SAE-AISI 1021 Steel vs. AWS E80C-W2

Both SAE-AISI 1021 steel and AWS E80C-W2 are iron alloys. They have a very high 97% 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 SAE-AISI 1021 steel and the bottom bar is AWS E80C-W2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 27
25
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 480 to 530
620
Tensile Strength: Yield (Proof), MPa 260 to 450
540

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 46
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
150
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 530
770
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 19
22
Strength to Weight: Bending, points 17 to 18
21
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 15 to 17
18

Alloy Composition


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Carbon (C), % 0.18 to 0.23
0 to 0.12
Chromium (Cr), % 0
0.45 to 0.7
Copper (Cu), % 0
0.3 to 0.75
Iron (Fe), % 98.8 to 99.22
94.9 to 98
Manganese (Mn), % 0.6 to 0.9
0.5 to 1.3
Nickel (Ni), % 0
0.4 to 0.8
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0.35 to 0.8
Sulfur (S), % 0 to 0.050
0 to 0.030
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5