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AWS E349 vs. SAE-AISI S4 Steel

Both AWS E349 and SAE-AISI S4 steel are iron alloys. They have 68% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS E349 and the bottom bar is SAE-AISI S4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 770
670 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
44
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.9
2.0
Embodied Energy, MJ/kg 72
29
Embodied Water, L/kg 150
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
24 to 77
Strength to Weight: Bending, points 24
22 to 48
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 20
20 to 65

Alloy Composition

Carbon (C), % 0 to 0.13
0.5 to 0.65
Chromium (Cr), % 18 to 21
0.1 to 0.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 60.5 to 71.1
95.2 to 96.9
Manganese (Mn), % 0.5 to 2.5
0.6 to 1.0
Molybdenum (Mo), % 0.35 to 0.65
0
Nickel (Ni), % 8.0 to 10
0
Niobium (Nb), % 0.75 to 1.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
1.8 to 2.3
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 1.3 to 1.8
0
Vanadium (V), % 0.1 to 0.3
0.15 to 0.35