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EN 1.4658 Stainless Steel vs. ZE41A Magnesium

EN 1.4658 stainless steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (8, 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 1.4658 stainless steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
63
Elastic (Young's, Tensile) Modulus, GPa 210
45
Elongation at Break, % 28
3.3
Fatigue Strength, MPa 530
98
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
18
Shear Strength, MPa 580
150
Tensile Strength: Ultimate (UTS), MPa 900
210
Tensile Strength: Yield (Proof), MPa 730
140

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1100
150
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1400
540
Specific Heat Capacity, J/kg-K 470
970
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 13
27

Otherwise Unclassified Properties

Base Metal Price, % relative 25
18
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 4.5
24
Embodied Energy, MJ/kg 61
170
Embodied Water, L/kg 200
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
220
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 32
31
Strength to Weight: Bending, points 26
41
Thermal Diffusivity, mm2/s 4.3
59
Thermal Shock Resistance, points 24
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0 to 0.1
Iron (Fe), % 50.9 to 63.7
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0 to 1.5
0 to 0.15
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0 to 0.010
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.010
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