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AZ91B Magnesium vs. EN 1.4962 Stainless Steel

AZ91B magnesium belongs to the magnesium alloys classification, while EN 1.4962 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 1.4962 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 5.0
22 to 34
Fatigue Strength, MPa 79
210 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 140
420 to 440
Tensile Strength: Ultimate (UTS), MPa 240
630 to 690
Tensile Strength: Yield (Proof), MPa 160
260 to 490

Thermal Properties

Latent Heat of Fusion, J/g 360
280
Maximum Temperature: Mechanical, °C 130
910
Melting Completion (Liquidus), °C 600
1480
Melting Onset (Solidus), °C 470
1440
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 73
14
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 58
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 22
4.1
Embodied Energy, MJ/kg 160
59
Embodied Water, L/kg 990
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 280
170 to 610
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 38
21 to 24
Strength to Weight: Bending, points 49
20 to 21
Thermal Diffusivity, mm2/s 42
3.7
Thermal Shock Resistance, points 14
14 to 16

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Boron (B), % 0
0.0015 to 0.0060
Carbon (C), % 0
0.070 to 0.15
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
62.1 to 69
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.5
Nickel (Ni), % 0 to 0.030
12.5 to 14.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.4 to 0.7
Tungsten (W), % 0
2.5 to 3.0
Zinc (Zn), % 0.35 to 1.0
0