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5252 Aluminum vs. K94200 Alloy

5252 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 (10, 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 5252 aluminum and the bottom bar is K94200 alloy.

5252 (AlMg2.5(B), A95252) AluminumUNS K94200 (FeNi42, 1.3917) Low Expansion Alloy
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
140
Elongation at Break, % 4.5 to 11
5.0 to 32
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 25
54
Shear Strength, MPa 140 to 160
330 to 410
Tensile Strength: Ultimate (UTS), MPa 230 to 290
500 to 710
Tensile Strength: Yield (Proof), MPa 170 to 240
270 to 650

Thermal Properties

Melting Onset (Solidus), °C 610
1440
Specific Heat Capacity, J/kg-K 910
500
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 24
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.0

Otherwise Unclassified Properties

Density, g/cm3 2.7
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
35 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
250 to 1460
Stiffness to Weight: Axial, points 14
9.8
Stiffness to Weight: Bending, points 51
21
Strength to Weight: Axial, points 23 to 30
17 to 24
Strength to Weight: Bending, points 31 to 36
17 to 22
Thermal Diffusivity, mm2/s 57
3.7
Thermal Shock Resistance, points 10 to 13
49 to 70