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AWS E120C-K4 vs. Grade VDSiCr Steel

Both AWS E120C-K4 and grade VDSiCr steel 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 (7, in this case) are not shown.

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

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
80
Tensile Strength: Ultimate (UTS), MPa 950
1950

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
20
Embodied Water, L/kg 54
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 34
70
Strength to Weight: Bending, points 27
45
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 28
58

Alloy Composition

Carbon (C), % 0 to 0.15
0.5 to 0.6
Chromium (Cr), % 0.15 to 0.65
0.5 to 0.8
Copper (Cu), % 0 to 0.35
0 to 0.060
Iron (Fe), % 92.1 to 98.4
96.6 to 97.8
Manganese (Mn), % 0.75 to 2.3
0.5 to 0.9
Molybdenum (Mo), % 0.25 to 0.65
0
Nickel (Ni), % 0.5 to 2.5
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.8
1.2 to 1.6
Sulfur (S), % 0 to 0.025
0 to 0.020
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0