MakeItFrom.com
Menu (ESC)

AZ91A Magnesium vs. S32615 Stainless Steel

AZ91A magnesium belongs to the magnesium alloys classification, while S32615 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, 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 S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
170
Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.0
28
Fatigue Strength, MPa 99
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
75
Shear Strength, MPa 140
400
Tensile Strength: Ultimate (UTS), MPa 240
620
Tensile Strength: Yield (Proof), MPa 160
250

Thermal Properties

Latent Heat of Fusion, J/g 360
370
Maximum Temperature: Mechanical, °C 130
990
Melting Completion (Liquidus), °C 600
1350
Melting Onset (Solidus), °C 470
1310
Specific Heat Capacity, J/kg-K 990
500
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
7.6
Embodied Carbon, kg CO2/kg material 22
4.4
Embodied Energy, MJ/kg 160
63
Embodied Water, L/kg 990
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
140
Resilience: Unit (Modulus of Resilience), kJ/m3 280
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 49
21
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
16.5 to 19.5
Copper (Cu), % 0 to 0.1
1.5 to 2.5
Iron (Fe), % 0
46.4 to 57.9
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 0 to 0.030
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.5
4.8 to 6.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.35 to 1.0
0