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SAE-AISI A6 Steel vs. AWS ER120S-1

Both SAE-AISI A6 steel and AWS ER120S-1 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 23 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 A6 steel and the bottom bar is AWS ER120S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 750 to 1990
930

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
4.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.9
Embodied Energy, MJ/kg 24
25
Embodied Water, L/kg 57
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 71
33
Strength to Weight: Bending, points 23 to 45
27
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 25 to 65
27

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.65 to 0.75
0 to 0.1
Chromium (Cr), % 0.9 to 1.2
0 to 0.6
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 93 to 95.8
92.4 to 96.1
Manganese (Mn), % 1.8 to 2.5
1.4 to 1.8
Molybdenum (Mo), % 0.9 to 1.4
0.3 to 0.65
Nickel (Ni), % 0 to 0.3
2.0 to 2.8
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.5
0.25 to 0.6
Sulfur (S), % 0 to 0.030
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