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EN 1.4874 Stainless Steel vs. ZC63A Magnesium

EN 1.4874 stainless steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 28 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 1.4874 stainless steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
60
Elastic (Young's, Tensile) Modulus, GPa 210
48
Elongation at Break, % 6.7
3.3
Fatigue Strength, MPa 180
94
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
19
Tensile Strength: Ultimate (UTS), MPa 480
220
Tensile Strength: Yield (Proof), MPa 360
130

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1150
98
Melting Completion (Liquidus), °C 1450
550
Melting Onset (Solidus), °C 1400
470
Specific Heat Capacity, J/kg-K 450
950
Thermal Conductivity, W/m-K 13
120
Thermal Expansion, µm/m-K 15
26

Otherwise Unclassified Properties

Base Metal Price, % relative 70
13
Density, g/cm3 8.4
2.1
Embodied Carbon, kg CO2/kg material 7.6
22
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 290
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 310
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 16
29
Strength to Weight: Bending, points 16
38
Thermal Diffusivity, mm2/s 3.3
58
Thermal Shock Resistance, points 11
12

Alloy Composition

Carbon (C), % 0.35 to 0.65
0
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 18.5 to 22
0
Copper (Cu), % 0
2.4 to 3.0
Iron (Fe), % 23 to 38.9
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0 to 2.0
0.25 to 0.75
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 18 to 22
0 to 0.010
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3