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EN 1.4612 Stainless Steel vs. M1A Magnesium

EN 1.4612 stainless steel belongs to the iron alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 25 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 1.4612 stainless steel and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 11
5.5
Fatigue Strength, MPa 860 to 950
88
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Shear Strength, MPa 1010 to 1110
120
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
230
Tensile Strength: Yield (Proof), MPa 1570 to 1730
130

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Maximum Temperature: Mechanical, °C 790
95
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
990
Thermal Expansion, µm/m-K 11
26

Otherwise Unclassified Properties

Base Metal Price, % relative 16
12
Density, g/cm3 7.9
1.7
Embodied Carbon, kg CO2/kg material 3.6
24
Embodied Energy, MJ/kg 50
160
Embodied Water, L/kg 140
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
11
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
71
Strength to Weight: Axial, points 60 to 65
38
Strength to Weight: Bending, points 40 to 43
49
Thermal Shock Resistance, points 58 to 63
13

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Calcium (Ca), % 0
0 to 0.3
Carbon (C), % 0 to 0.015
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 71.5 to 75.5
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 0 to 0.1
1.2 to 2.0
Molybdenum (Mo), % 1.8 to 2.3
0
Nickel (Ni), % 10.2 to 11.3
0 to 0.010
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0 to 0.1
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0.2 to 0.5
0
Residuals, % 0
0 to 0.3