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EN 1.4646 Stainless Steel vs. EZ33A Magnesium

EN 1.4646 stainless steel belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium 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 EN 1.4646 stainless steel and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
55
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 34
2.6
Fatigue Strength, MPa 340
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Shear Strength, MPa 500
140
Tensile Strength: Ultimate (UTS), MPa 750
150
Tensile Strength: Yield (Proof), MPa 430
100

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 910
250
Melting Completion (Liquidus), °C 1390
640
Melting Onset (Solidus), °C 1340
570
Specific Heat Capacity, J/kg-K 480
970
Thermal Expansion, µm/m-K 17
27

Otherwise Unclassified Properties

Base Metal Price, % relative 13
25
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.8
25
Embodied Energy, MJ/kg 41
190
Embodied Water, L/kg 160
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 460
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 27
22
Strength to Weight: Bending, points 24
33
Thermal Shock Resistance, points 16
9.2

Alloy Composition

Carbon (C), % 0.020 to 0.1
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 1.5 to 3.0
0 to 0.1
Iron (Fe), % 59 to 67.3
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 10.5 to 12.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 3.5 to 4.5
0 to 0.010
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3