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EN 1.0031 Steel vs. AWS ER120S-1

Both EN 1.0031 steel and AWS ER120S-1 are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 27 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 EN 1.0031 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, % 28
17
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 310
930
Tensile Strength: Yield (Proof), MPa 210
830

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.9
Embodied Energy, MJ/kg 18
25
Embodied Water, L/kg 45
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
150
Resilience: Unit (Modulus of Resilience), kJ/m3 120
1850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 11
33
Strength to Weight: Bending, points 13
27
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 9.8
27

Alloy Composition


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Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 0
0 to 0.6
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.8 to 100
92.4 to 96.1
Manganese (Mn), % 0 to 0.7
1.4 to 1.8
Molybdenum (Mo), % 0
0.3 to 0.65
Nickel (Ni), % 0
2.0 to 2.8
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 0.35
0.25 to 0.6
Sulfur (S), % 0 to 0.045
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