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AISI 418 Stainless Steel vs. Zamak 5

AISI 418 stainless steel belongs to the iron alloys classification, while Zamak 5 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is Zamak 5.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
92
Elastic (Young's, Tensile) Modulus, GPa 200
87
Elongation at Break, % 17
6.3
Fatigue Strength, MPa 520
56
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 77
33
Shear Strength, MPa 680
260
Tensile Strength: Ultimate (UTS), MPa 1100
330
Tensile Strength: Yield (Proof), MPa 850
240

Thermal Properties

Latent Heat of Fusion, J/g 270
120
Maximum Temperature: Mechanical, °C 770
95
Melting Completion (Liquidus), °C 1500
390
Melting Onset (Solidus), °C 1460
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 25
110
Thermal Expansion, µm/m-K 10
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
26
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
37

Otherwise Unclassified Properties

Base Metal Price, % relative 15
12
Density, g/cm3 8.0
6.4
Embodied Carbon, kg CO2/kg material 2.9
3.0
Embodied Energy, MJ/kg 41
57
Embodied Water, L/kg 110
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
19
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
330
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 38
14
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 6.7
42
Thermal Shock Resistance, points 40
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.15 to 0.2
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0.7 to 1.3
Iron (Fe), % 78.5 to 83.6
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0 to 0.020
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0 to 0.030
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
94.3 to 95.7