MakeItFrom.com
Menu (ESC)

AZ91A Magnesium vs. EN 1.4568 Stainless Steel

AZ91A magnesium belongs to the magnesium alloys classification, while EN 1.4568 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 AZ91A magnesium and the bottom bar is EN 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 5.0
2.3 to 21
Fatigue Strength, MPa 99
220 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 140
520 to 930
Tensile Strength: Ultimate (UTS), MPa 240
830 to 1620
Tensile Strength: Yield (Proof), MPa 160
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 360
280
Maximum Temperature: Mechanical, °C 130
890
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 470
1380
Specific Heat Capacity, J/kg-K 990
480
Thermal Conductivity, W/m-K 73
16
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 52
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 22
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 990
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 280
290 to 5710
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 38
30 to 58
Strength to Weight: Bending, points 49
25 to 40
Thermal Diffusivity, mm2/s 42
4.3
Thermal Shock Resistance, points 14
23 to 46

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0.7 to 1.5
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
70.9 to 76.8
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.030
6.5 to 7.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0.35 to 1.0
0