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Zamak 5 vs. S31100 Stainless Steel

Zamak 5 belongs to the zinc alloys classification, while S31100 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 S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
270
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.3
4.5
Fatigue Strength, MPa 56
330
Poisson's Ratio 0.25
0.27
Shear Modulus, GPa 33
79
Shear Strength, MPa 260
580
Tensile Strength: Ultimate (UTS), MPa 330
1000
Tensile Strength: Yield (Proof), MPa 240
710

Thermal Properties

Latent Heat of Fusion, J/g 120
300
Maximum Temperature: Mechanical, °C 95
1100
Melting Completion (Liquidus), °C 390
1420
Melting Onset (Solidus), °C 380
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
16
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
16
Density, g/cm3 6.4
7.7
Embodied Carbon, kg CO2/kg material 3.0
3.1
Embodied Energy, MJ/kg 57
44
Embodied Water, L/kg 380
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
40
Resilience: Unit (Modulus of Resilience), kJ/m3 330
1240
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 14
36
Strength to Weight: Bending, points 16
29
Thermal Diffusivity, mm2/s 42
4.2
Thermal Shock Resistance, points 9.9
28

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.1
63.6 to 69
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
6.0 to 7.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 94.3 to 95.7
0