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Zamak 3 vs. S31803 Stainless Steel

Zamak 3 belongs to the zinc alloys classification, while S31803 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
260
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 11
29
Fatigue Strength, MPa 48
370
Poisson's Ratio 0.25
0.27
Shear Modulus, GPa 33
80
Shear Strength, MPa 210
460
Tensile Strength: Ultimate (UTS), MPa 280
710
Tensile Strength: Yield (Proof), MPa 210
500

Thermal Properties

Latent Heat of Fusion, J/g 120
300
Maximum Temperature: Mechanical, °C 95
1060
Melting Completion (Liquidus), °C 390
1450
Melting Onset (Solidus), °C 380
1400
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 27
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 38
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 57
49
Embodied Water, L/kg 380
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
180
Resilience: Unit (Modulus of Resilience), kJ/m3 260
630
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
25
Strength to Weight: Bending, points 15
23
Thermal Diffusivity, mm2/s 43
4.3
Thermal Shock Resistance, points 8.6
20

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.1
63.7 to 71.9
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 0.020
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 95.3 to 96.5
0