MakeItFrom.com
Menu (ESC)

7204 Aluminum vs. EN 1.7375 Steel

7204 aluminum belongs to the aluminum alloys classification, while EN 1.7375 steel belongs to the iron 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 7204 aluminum and the bottom bar is EN 1.7375 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 11 to 13
20
Fatigue Strength, MPa 110 to 130
270
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
74
Shear Strength, MPa 130 to 220
380
Tensile Strength: Ultimate (UTS), MPa 220 to 380
620
Tensile Strength: Yield (Proof), MPa 120 to 310
400

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Maximum Temperature: Mechanical, °C 210
460
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 520
1430
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 150
39
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.9
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 8.4
1.8
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1140
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 40
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 710
420
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 21 to 36
22
Strength to Weight: Bending, points 28 to 40
20
Thermal Diffusivity, mm2/s 58
11
Thermal Shock Resistance, points 9.4 to 16
18

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
0.010 to 0.040
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0 to 0.3
2.0 to 2.5
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 0 to 0.35
94.5 to 96.7
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0.2 to 0.7
0.3 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.3
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0