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392.0 Aluminum vs. ASTM A232 Spring Steel

392.0 aluminum belongs to the aluminum alloys classification, while ASTM A232 spring steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 392.0 aluminum and the bottom bar is ASTM A232 spring steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
190
Elongation at Break, % 0.86
14
Fatigue Strength, MPa 190
1040
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 290
1790
Tensile Strength: Yield (Proof), MPa 270
1610

Thermal Properties

Latent Heat of Fusion, J/g 670
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 670
1460
Melting Onset (Solidus), °C 580
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
52
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.3
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.5
2.0
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 950
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
250
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 56
24
Strength to Weight: Axial, points 32
64
Strength to Weight: Bending, points 39
42
Thermal Diffusivity, mm2/s 60
14
Thermal Shock Resistance, points 15
53

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0.48 to 0.53
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 0 to 1.5
96.8 to 97.7
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0.7 to 0.9
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 18 to 20
0.15 to 0.35
Sulfur (S), % 0
0 to 0.035
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0