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AWS E309H vs. EN AC-51100 Aluminum

AWS E309H belongs to the iron alloys classification, while EN AC-51100 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS E309H and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 34
4.5
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 620
160

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.7
8.7
Embodied Energy, MJ/kg 52
150
Embodied Water, L/kg 180
1180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
25
Thermal Diffusivity, mm2/s 4.0
53
Thermal Shock Resistance, points 16
7.3

Alloy Composition

Aluminum (Al), % 0
94.5 to 97.5
Carbon (C), % 0.040 to 0.15
0
Chromium (Cr), % 22 to 25
0
Copper (Cu), % 0 to 0.75
0 to 0.050
Iron (Fe), % 55.8 to 65.5
0 to 0.55
Magnesium (Mg), % 0
2.5 to 3.5
Manganese (Mn), % 0.5 to 2.5
0 to 0.45
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.55
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15