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AWS E320 vs. SAE-AISI A3 Steel

Both AWS E320 and SAE-AISI A3 steel are iron alloys. They have 45% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS E320 and the bottom bar is SAE-AISI A3 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
73
Tensile Strength: Ultimate (UTS), MPa 620
700 to 2150

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
12

Otherwise Unclassified Properties

Base Metal Price, % relative 38
6.0
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
4.4
Embodied Energy, MJ/kg 91
67
Embodied Water, L/kg 220
78

Common Calculations

PREN (Pitting Resistance) 28
8.9
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
25 to 77
Strength to Weight: Bending, points 20
23 to 48
Thermal Shock Resistance, points 16
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.070
1.2 to 1.3
Chromium (Cr), % 19 to 21
4.8 to 5.5
Copper (Cu), % 3.0 to 4.0
0 to 0.25
Iron (Fe), % 31.8 to 43.5
88.7 to 92
Manganese (Mn), % 0.5 to 2.5
0.4 to 0.6
Molybdenum (Mo), % 2.0 to 3.0
0.9 to 1.4
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 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4