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EN 1.6570 Steel vs. A357.0 Aluminum

EN 1.6570 steel belongs to the iron alloys classification, while A357.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 EN 1.6570 steel and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 340
100
Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 11 to 17
3.7
Fatigue Strength, MPa 500 to 660
100
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 910 to 1130
350
Tensile Strength: Yield (Proof), MPa 760 to 1060
270

Thermal Properties

Latent Heat of Fusion, J/g 250
500
Maximum Temperature: Mechanical, °C 440
170
Melting Completion (Liquidus), °C 1460
610
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 40
160
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
12
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 1.7
8.2
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 56
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
12
Resilience: Unit (Modulus of Resilience), kJ/m3 1520 to 3010
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 32 to 40
38
Strength to Weight: Bending, points 27 to 31
43
Thermal Diffusivity, mm2/s 11
68
Thermal Shock Resistance, points 27 to 33
17

Alloy Composition

Aluminum (Al), % 0
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Carbon (C), % 0.28 to 0.35
0
Chromium (Cr), % 1.0 to 1.4
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 94 to 96.2
0 to 0.2
Magnesium (Mg), % 0
0.4 to 0.7
Manganese (Mn), % 0.6 to 1.0
0 to 0.1
Molybdenum (Mo), % 0.3 to 0.5
0
Nickel (Ni), % 1.6 to 2.1
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.6
6.5 to 7.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0.040 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15