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EN 1.4874 Stainless Steel vs. 1230A Aluminum

EN 1.4874 stainless steel belongs to the iron alloys classification, while 1230A aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 1.4874 stainless steel and the bottom bar is 1230A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 6.7
4.5 to 34
Fatigue Strength, MPa 180
35 to 74
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 480
89 to 170
Tensile Strength: Yield (Proof), MPa 360
29 to 150

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1150
170
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1400
640
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
230
Thermal Expansion, µm/m-K 15
23

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.0
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.2
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 290
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
6.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 310
5.9 to 150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 16
9.1 to 17
Strength to Weight: Bending, points 16
16 to 25
Thermal Diffusivity, mm2/s 3.3
93
Thermal Shock Resistance, points 11
4.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.3 to 100
Carbon (C), % 0.35 to 0.65
0
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 18.5 to 22
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 23 to 38.9
0 to 0.7
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.050
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 18 to 22
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.050