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EN 1.4825 Stainless Steel vs. EZ33A Magnesium

EN 1.4825 stainless steel belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium 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 EN 1.4825 stainless steel and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
55
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 17
2.6
Fatigue Strength, MPa 160
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Tensile Strength: Ultimate (UTS), MPa 510
150
Tensile Strength: Yield (Proof), MPa 260
100

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 900
250
Melting Completion (Liquidus), °C 1410
640
Melting Onset (Solidus), °C 1370
570
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
110

Otherwise Unclassified Properties

Base Metal Price, % relative 15
25
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 3.1
25
Embodied Energy, MJ/kg 43
190
Embodied Water, L/kg 140
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 170
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
33
Thermal Diffusivity, mm2/s 4.0
54
Thermal Shock Resistance, points 12
9.2

Alloy Composition

Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 65.6 to 74.4
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 10
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.5 to 2.5
0
Sulfur (S), % 0 to 0.030
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