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Zamak 5 vs. S40930 Stainless Steel

Zamak 5 belongs to the zinc alloys classification, while S40930 stainless steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is Zamak 5 and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 92
160
Elastic (Young's, Tensile) Modulus, GPa 87
190
Elongation at Break, % 6.3
23
Fatigue Strength, MPa 56
130
Poisson's Ratio 0.25
0.28
Rockwell B Hardness 57
76
Shear Modulus, GPa 33
75
Shear Strength, MPa 260
270
Tensile Strength: Ultimate (UTS), MPa 330
430
Tensile Strength: Yield (Proof), MPa 240
190

Thermal Properties

Latent Heat of Fusion, J/g 120
270
Maximum Temperature: Mechanical, °C 95
710
Melting Completion (Liquidus), °C 390
1450
Melting Onset (Solidus), °C 380
1410
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
25
Thermal Expansion, µm/m-K 27
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 37
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
8.5
Density, g/cm3 6.4
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.3
Embodied Energy, MJ/kg 57
32
Embodied Water, L/kg 380
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
80
Resilience: Unit (Modulus of Resilience), kJ/m3 330
94
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 14
16
Strength to Weight: Bending, points 16
16
Thermal Diffusivity, mm2/s 42
6.7
Thermal Shock Resistance, points 9.9
16

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
10.5 to 11.7
Copper (Cu), % 0.7 to 1.3
0
Iron (Fe), % 0 to 0.1
84.7 to 89.4
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
0 to 0.5
Niobium (Nb), % 0
0.080 to 0.75
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0.050 to 0.2
Zinc (Zn), % 94.3 to 95.7
0