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AWS E320 vs. SAE-AISI S2 Steel

Both AWS E320 and SAE-AISI S2 steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS E320 and the bottom bar is SAE-AISI S2 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 77
72
Tensile Strength: Ultimate (UTS), MPa 620
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 38
2.6
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
2.1
Embodied Energy, MJ/kg 91
30
Embodied Water, L/kg 220
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
24 to 69
Strength to Weight: Bending, points 20
22 to 44
Thermal Shock Resistance, points 16
23 to 68

Alloy Composition

Carbon (C), % 0 to 0.070
0.4 to 0.55
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 3.0 to 4.0
0 to 0.25
Iron (Fe), % 31.8 to 43.5
96 to 98.1
Manganese (Mn), % 0.5 to 2.5
0.3 to 0.5
Molybdenum (Mo), % 2.0 to 3.0
0.3 to 0.6
Nickel (Ni), % 32 to 36
0 to 0.3
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.6
0.9 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 0.5