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2007 Aluminum vs. K94200 Alloy

2007 aluminum belongs to the aluminum alloys classification, while K94200 alloy belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 2007 aluminum and the bottom bar is K94200 alloy.

2007 (AlCu4PbMgMn, 3.1645, A92007) AluminumUNS K94200 (FeNi42, 1.3917) Low Expansion Alloy
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
140
Elongation at Break, % 5.6 to 8.0
5.0 to 32
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
54
Shear Strength, MPa 220 to 250
330 to 410
Tensile Strength: Ultimate (UTS), MPa 370 to 420
500 to 710
Tensile Strength: Yield (Proof), MPa 240 to 270
270 to 650

Thermal Properties

Melting Onset (Solidus), °C 510
1440
Specific Heat Capacity, J/kg-K 870
500
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.0

Otherwise Unclassified Properties

Density, g/cm3 3.1
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
35 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
250 to 1460
Stiffness to Weight: Axial, points 13
9.8
Stiffness to Weight: Bending, points 44
21
Strength to Weight: Axial, points 33 to 38
17 to 24
Strength to Weight: Bending, points 37 to 40
17 to 22
Thermal Diffusivity, mm2/s 48
3.7
Thermal Shock Resistance, points 16 to 19
49 to 70