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EN 1.1127 Steel vs. 336.0 Aluminum

EN 1.1127 steel belongs to the iron alloys classification, while 336.0 aluminum belongs to the aluminum alloys. 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 1.1127 steel and the bottom bar is 336.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
110 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
75
Elongation at Break, % 14 to 25
0.5
Fatigue Strength, MPa 280 to 370
80 to 93
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
28
Shear Strength, MPa 420 to 480
190 to 250
Tensile Strength: Ultimate (UTS), MPa 660 to 790
250 to 320
Tensile Strength: Yield (Proof), MPa 410 to 580
190 to 300

Thermal Properties

Latent Heat of Fusion, J/g 250
570
Maximum Temperature: Mechanical, °C 400
210
Melting Completion (Liquidus), °C 1460
570
Melting Onset (Solidus), °C 1410
540
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 49
120
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
29
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
95

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
11
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.5
7.9
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 49
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 140
1.1 to 1.6
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 880
250 to 580
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 23 to 28
25 to 32
Strength to Weight: Bending, points 22 to 24
32 to 38
Thermal Diffusivity, mm2/s 13
48
Thermal Shock Resistance, points 21 to 25
12 to 16

Alloy Composition

Aluminum (Al), % 0
79.1 to 85.8
Carbon (C), % 0.34 to 0.42
0
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 96.6 to 98.1
0 to 1.2
Magnesium (Mg), % 0
0.7 to 1.3
Manganese (Mn), % 1.4 to 1.7
0 to 0.35
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
2.0 to 3.0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
11 to 13
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35