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EN 1.4125 Stainless Steel vs. ZE41A Magnesium

EN 1.4125 stainless steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 31 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 1.4125 stainless steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
63
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 19
3.3
Fatigue Strength, MPa 300
98
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
18
Shear Strength, MPa 500
150
Tensile Strength: Ultimate (UTS), MPa 800
210
Tensile Strength: Yield (Proof), MPa 470
140

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 870
150
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 10
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
18
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.3
24
Embodied Energy, MJ/kg 32
170
Embodied Water, L/kg 120
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 570
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 29
31
Strength to Weight: Bending, points 25
41
Thermal Diffusivity, mm2/s 4.1
59
Thermal Shock Resistance, points 29
12

Alloy Composition

Carbon (C), % 1.0 to 1.2
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 78 to 82.7
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3