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AWS E120C-K4 vs. ASTM Grade HD Steel

Both AWS E120C-K4 and ASTM grade HD steel are iron alloys. They have 68% 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 AWS E120C-K4 and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
9.1
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 950
590
Tensile Strength: Yield (Proof), MPa 840
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 41
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.1
Embodied Energy, MJ/kg 23
45
Embodied Water, L/kg 54
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
44
Resilience: Unit (Modulus of Resilience), kJ/m3 1880
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 34
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 11
4.3
Thermal Shock Resistance, points 28
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.5
Chromium (Cr), % 0.15 to 0.65
26 to 30
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 92.1 to 98.4
58.4 to 70
Manganese (Mn), % 0.75 to 2.3
0 to 1.5
Molybdenum (Mo), % 0.25 to 0.65
0 to 0.5
Nickel (Ni), % 0.5 to 2.5
4.0 to 7.0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040
Vanadium (V), % 0 to 0.030
0
Residuals, % 0 to 0.5
0