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AWS E120C-K4 vs. EN 1.7390 Steel

Both AWS E120C-K4 and EN 1.7390 steel are iron alloys. They have a very 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 (7, in this case) are not shown.

For each property being compared, the top bar is AWS E120C-K4 and the bottom bar is EN 1.7390 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
74
Tensile Strength: Ultimate (UTS), MPa 950
710
Tensile Strength: Yield (Proof), MPa 840
480

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
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.7
Embodied Energy, MJ/kg 23
23
Embodied Water, L/kg 54
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1880
600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 34
25
Strength to Weight: Bending, points 27
23
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 28
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.18
Chromium (Cr), % 0.15 to 0.65
4.0 to 6.0
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 92.1 to 98.4
91.9 to 95.3
Manganese (Mn), % 0.75 to 2.3
0.3 to 0.8
Molybdenum (Mo), % 0.25 to 0.65
0.45 to 0.65
Nickel (Ni), % 0.5 to 2.5
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0