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AWS ER120S-1 vs. SAE-AISI S4 Steel

Both AWS ER120S-1 and SAE-AISI S4 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 23 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 ER120S-1 and the bottom bar is SAE-AISI S4 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
72
Tensile Strength: Ultimate (UTS), MPa 930
670 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
2.2
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.9
2.0
Embodied Energy, MJ/kg 25
29
Embodied Water, L/kg 56
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33
24 to 77
Strength to Weight: Bending, points 27
22 to 48
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 27
20 to 65

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.1
0.5 to 0.65
Chromium (Cr), % 0 to 0.6
0.1 to 0.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 92.4 to 96.1
95.2 to 96.9
Manganese (Mn), % 1.4 to 1.8
0.6 to 1.0
Molybdenum (Mo), % 0.3 to 0.65
0
Nickel (Ni), % 2.0 to 2.8
0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0.25 to 0.6
1.8 to 2.3
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Vanadium (V), % 0 to 0.030
0.15 to 0.35
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.5
0