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6351-T4 Aluminum vs. EN AC-21200-T4

Both 6351-T4 aluminum and EN AC-21200-T4 are aluminum alloys. Both are furnished in the T4 temper. They have a very high 96% of their average alloy composition in common. There are 29 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 6351-T4 aluminum and the bottom bar is EN AC-21200-T4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 18
6.2
Fatigue Strength, MPa 79
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 240
410
Tensile Strength: Yield (Proof), MPa 140
270

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 650
660
Melting Onset (Solidus), °C 570
550
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 180
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
34
Electrical Conductivity: Equal Weight (Specific), % IACS 150
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
22
Resilience: Unit (Modulus of Resilience), kJ/m3 150
500
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 25
38
Strength to Weight: Bending, points 32
41
Thermal Diffusivity, mm2/s 72
49
Thermal Shock Resistance, points 11
18

Alloy Composition

Aluminum (Al), % 96 to 98.5
93.3 to 95.7
Copper (Cu), % 0 to 0.1
4.0 to 5.0
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.4 to 0.8
0.15 to 0.5
Manganese (Mn), % 0.4 to 0.8
0.2 to 0.5
Nickel (Ni), % 0
0 to 0.050
Silicon (Si), % 0.7 to 1.3
0 to 0.1
Tin (Sn), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0
0 to 0.1