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AWS E120C-K4 vs. EN 1.7378 Steel

Both AWS E120C-K4 and EN 1.7378 steel 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 (6, in this case) are not shown.

For each property being compared, the top bar is AWS E120C-K4 and the bottom bar is EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
17
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Tensile Strength: Ultimate (UTS), MPa 950
700
Tensile Strength: Yield (Proof), MPa 840
490

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.3
Embodied Energy, MJ/kg 23
33
Embodied Water, L/kg 54
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1880
630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 34
25
Strength to Weight: Bending, points 27
22
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 28
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.15
0.050 to 0.1
Chromium (Cr), % 0.15 to 0.65
2.2 to 2.6
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 92.1 to 98.4
94.6 to 96.1
Manganese (Mn), % 0.75 to 2.3
0.3 to 0.7
Molybdenum (Mo), % 0.25 to 0.65
0.9 to 1.1
Nickel (Ni), % 0.5 to 2.5
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.8
0.15 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0.050 to 0.1
Vanadium (V), % 0 to 0.030
0.2 to 0.3
Residuals, % 0 to 0.5
0