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EN 1.4525 Stainless Steel vs. EZ33A Magnesium

EN 1.4525 stainless steel belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 1.4525 stainless steel and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 5.6 to 13
2.6
Fatigue Strength, MPa 480 to 540
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
150
Tensile Strength: Yield (Proof), MPa 840 to 1120
100

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 860
250
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
570
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 18
100
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 13
25
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 2.8
25
Embodied Energy, MJ/kg 39
190
Embodied Water, L/kg 130
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 130
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 1820 to 3230
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 36 to 45
22
Strength to Weight: Bending, points 29 to 33
33
Thermal Diffusivity, mm2/s 4.7
54
Thermal Shock Resistance, points 34 to 41
9.2

Alloy Composition

Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 2.5 to 4.0
0 to 0.1
Iron (Fe), % 70.4 to 79
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 3.5 to 5.5
0 to 0.010
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.025
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