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K1A Magnesium vs. EN 1.4612 Stainless Steel

K1A magnesium belongs to the magnesium alloys classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 K1A magnesium and the bottom bar is EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
190
Elongation at Break, % 13
11
Fatigue Strength, MPa 39
860 to 950
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 55
1010 to 1110
Tensile Strength: Ultimate (UTS), MPa 180
1690 to 1850
Tensile Strength: Yield (Proof), MPa 51
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
790
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 650
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Expansion, µm/m-K 27
11

Otherwise Unclassified Properties

Base Metal Price, % relative 13
16
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 24
3.6
Embodied Energy, MJ/kg 170
50
Embodied Water, L/kg 970
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
190 to 210
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 73
25
Strength to Weight: Axial, points 31
60 to 65
Strength to Weight: Bending, points 43
40 to 43
Thermal Shock Resistance, points 11
58 to 63

Alloy Composition


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Aluminum (Al), % 0
1.4 to 1.8
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
11 to 12.5
Iron (Fe), % 0
71.5 to 75.5
Magnesium (Mg), % 98.7 to 99.6
0
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
1.8 to 2.3
Nickel (Ni), % 0
10.2 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0
0.2 to 0.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0