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ASTM Grade HD Steel vs. AWS ER120S-1

Both ASTM grade HD steel and AWS ER120S-1 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 ASTM grade HD steel and the bottom bar is AWS ER120S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.1
17
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 590
930
Tensile Strength: Yield (Proof), MPa 270
830

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
4.2
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.9
Embodied Energy, MJ/kg 45
25
Embodied Water, L/kg 180
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
150
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1850
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 21
33
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 4.3
13
Thermal Shock Resistance, points 19
27

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0 to 0.5
0 to 0.1
Chromium (Cr), % 26 to 30
0 to 0.6
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.4 to 70
92.4 to 96.1
Manganese (Mn), % 0 to 1.5
1.4 to 1.8
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.65
Nickel (Ni), % 4.0 to 7.0
2.0 to 2.8
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 2.0
0.25 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.030
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.5