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AWS E120C-K4 vs. EN 1.7779 Steel

Both AWS E120C-K4 and EN 1.7779 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 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
16
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 950
810
Tensile Strength: Yield (Proof), MPa 840
660

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
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
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.9

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
2.8
Embodied Energy, MJ/kg 23
41
Embodied Water, L/kg 54
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1880
1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 34
29
Strength to Weight: Bending, points 27
25
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 28
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.15
0.17 to 0.23
Chromium (Cr), % 0.15 to 0.65
3.0 to 3.3
Copper (Cu), % 0 to 0.35
0 to 0.3
Iron (Fe), % 92.1 to 98.4
93.8 to 95.4
Manganese (Mn), % 0.75 to 2.3
0.3 to 0.5
Molybdenum (Mo), % 0.25 to 0.65
0.5 to 0.6
Nickel (Ni), % 0.5 to 2.5
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0 to 0.030
0.45 to 0.55
Residuals, % 0 to 0.5
0