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EN 1.4595 Stainless Steel vs. M1A Magnesium

EN 1.4595 stainless steel belongs to the iron alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.4595 stainless steel and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 29
5.5
Fatigue Strength, MPa 180
88
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Shear Strength, MPa 310
120
Tensile Strength: Ultimate (UTS), MPa 470
230
Tensile Strength: Yield (Proof), MPa 250
130

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Maximum Temperature: Mechanical, °C 810
95
Melting Completion (Liquidus), °C 1450
610
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
990
Thermal Conductivity, W/m-K 30
150
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
35
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
190

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 7.7
1.7
Embodied Carbon, kg CO2/kg material 2.4
24
Embodied Energy, MJ/kg 34
160
Embodied Water, L/kg 110
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
11
Resilience: Unit (Modulus of Resilience), kJ/m3 150
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
71
Strength to Weight: Axial, points 17
38
Strength to Weight: Bending, points 17
49
Thermal Diffusivity, mm2/s 8.1
88
Thermal Shock Resistance, points 17
13

Alloy Composition

Calcium (Ca), % 0
0 to 0.3
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 81.3 to 85.8
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 0 to 1.0
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0.2 to 0.6
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Residuals, % 0
0 to 0.3