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EN 1.3940 Stainless Steel vs. Zamak 3

EN 1.3940 stainless steel belongs to the iron alloys classification, while Zamak 3 belongs to the zinc alloys. There are 29 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.3940 stainless steel and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
86
Elongation at Break, % 34
11
Fatigue Strength, MPa 190
48
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 540
280
Tensile Strength: Yield (Proof), MPa 240
210

Thermal Properties

Latent Heat of Fusion, J/g 290
120
Maximum Temperature: Mechanical, °C 930
95
Melting Completion (Liquidus), °C 1420
390
Melting Onset (Solidus), °C 1380
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
38

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 3.3
3.0
Embodied Energy, MJ/kg 47
57
Embodied Water, L/kg 150
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
28
Resilience: Unit (Modulus of Resilience), kJ/m3 150
260
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 19
15
Thermal Diffusivity, mm2/s 4.1
43
Thermal Shock Resistance, points 16
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 64.2 to 71.4
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 14
0 to 0.020
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.030
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
95.3 to 96.5