MakeItFrom.com
Menu (ESC)

AZ91B Magnesium vs. EN 1.5525 Steel

AZ91B magnesium belongs to the magnesium alloys classification, while EN 1.5525 steel belongs to the iron alloys. There are 31 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 AZ91B magnesium and the bottom bar is EN 1.5525 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
130 to 180
Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.0
11 to 21
Fatigue Strength, MPa 79
210 to 310
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 140
310 to 350
Tensile Strength: Ultimate (UTS), MPa 240
440 to 1440
Tensile Strength: Yield (Proof), MPa 160
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 360
250
Maximum Temperature: Mechanical, °C 130
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 470
1420
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 73
50
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 58
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 22
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 990
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
44 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 280
240 to 640
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 38
16 to 51
Strength to Weight: Bending, points 49
16 to 36
Thermal Diffusivity, mm2/s 42
13
Thermal Shock Resistance, points 14
13 to 42

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.18 to 0.23
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.35
0 to 0.25
Iron (Fe), % 0
97.7 to 98.9
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0.9 to 1.2
Nickel (Ni), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0.35 to 1.0
0