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AWS E349 vs. SAE-AISI A3 Steel

Both AWS E349 and SAE-AISI A3 steel are iron alloys. They have 73% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AWS E349 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 78
73
Tensile Strength: Ultimate (UTS), MPa 770
700 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
37
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
6.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.9
4.4
Embodied Energy, MJ/kg 72
67
Embodied Water, L/kg 150
78

Common Calculations

PREN (Pitting Resistance) 24
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25 to 77
Strength to Weight: Bending, points 24
23 to 48
Thermal Diffusivity, mm2/s 4.1
10
Thermal Shock Resistance, points 20
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.13
1.2 to 1.3
Chromium (Cr), % 18 to 21
4.8 to 5.5
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 60.5 to 71.1
88.7 to 92
Manganese (Mn), % 0.5 to 2.5
0.4 to 0.6
Molybdenum (Mo), % 0.35 to 0.65
0.9 to 1.4
Nickel (Ni), % 8.0 to 10
0 to 0.3
Niobium (Nb), % 0.75 to 1.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
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
0.8 to 1.4