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K1A Magnesium vs. S46910 Stainless Steel

K1A magnesium belongs to the magnesium alloys classification, while S46910 stainless steel belongs to the iron alloys. There are 26 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 S46910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
200
Elongation at Break, % 13
2.2 to 11
Fatigue Strength, MPa 39
250 to 1020
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 55
410 to 1410
Tensile Strength: Ultimate (UTS), MPa 180
680 to 2470
Tensile Strength: Yield (Proof), MPa 51
450 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
810
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 650
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Expansion, µm/m-K 27
11

Otherwise Unclassified Properties

Base Metal Price, % relative 13
18
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 24
4.1
Embodied Energy, MJ/kg 170
55
Embodied Water, L/kg 970
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
48 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 30
510 to 4780
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 73
24
Strength to Weight: Axial, points 31
24 to 86
Strength to Weight: Bending, points 43
22 to 51
Thermal Shock Resistance, points 11
23 to 84

Alloy Composition


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Aluminum (Al), % 0
0.15 to 0.5
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 0
65 to 76
Magnesium (Mg), % 98.7 to 99.6
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
8.0 to 10
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.5 to 1.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0