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EN 1.4525 Stainless Steel vs. ZK61A Magnesium

EN 1.4525 stainless steel belongs to the iron alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 5.6 to 13
5.8 to 7.1
Fatigue Strength, MPa 480 to 540
120 to 140
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
290 to 310
Tensile Strength: Yield (Proof), MPa 840 to 1120
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Mechanical, °C 860
120
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
530
Specific Heat Capacity, J/kg-K 480
960
Thermal Conductivity, W/m-K 18
120
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
29
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
130

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 2.8
23
Embodied Energy, MJ/kg 39
160
Embodied Water, L/kg 130
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 130
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 1820 to 3230
370 to 420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
62
Strength to Weight: Axial, points 36 to 45
42 to 45
Strength to Weight: Bending, points 29 to 33
50 to 53
Thermal Diffusivity, mm2/s 4.7
65
Thermal Shock Resistance, points 34 to 41
17 to 18

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
92.1 to 93.9
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
Zinc (Zn), % 0
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3

Comparable Variants