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Zamak 5 vs. AISI 431 Stainless Steel

Zamak 5 belongs to the zinc alloys classification, while AISI 431 stainless steel belongs to the iron 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 Zamak 5 and the bottom bar is AISI 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
250
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.3
15 to 17
Fatigue Strength, MPa 56
430 to 610
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
77
Shear Strength, MPa 260
550 to 840
Tensile Strength: Ultimate (UTS), MPa 330
890 to 1380
Tensile Strength: Yield (Proof), MPa 240
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 120
280
Maximum Temperature: Mechanical, °C 95
850
Melting Completion (Liquidus), °C 390
1510
Melting Onset (Solidus), °C 380
1450
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
26
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 37
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.0
Density, g/cm3 6.4
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.2
Embodied Energy, MJ/kg 57
31
Embodied Water, L/kg 380
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 330
1270 to 2770
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 14
32 to 50
Strength to Weight: Bending, points 16
27 to 36
Thermal Diffusivity, mm2/s 42
7.0
Thermal Shock Resistance, points 9.9
28 to 43

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.1
78.2 to 83.8
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.025 to 0.080
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.020
1.3 to 2.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 94.3 to 95.7
0