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Zamak 2 vs. S43940 Stainless Steel

Zamak 2 belongs to the zinc alloys classification, while S43940 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 2 and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
160
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.0
21
Fatigue Strength, MPa 59
180
Poisson's Ratio 0.26
0.28
Rockwell B Hardness 63
76
Shear Modulus, GPa 33
77
Shear Strength, MPa 320
310
Tensile Strength: Ultimate (UTS), MPa 360
490
Tensile Strength: Yield (Proof), MPa 270
280

Thermal Properties

Latent Heat of Fusion, J/g 130
280
Maximum Temperature: Mechanical, °C 95
890
Melting Completion (Liquidus), °C 390
1440
Melting Onset (Solidus), °C 380
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
25
Thermal Expansion, µm/m-K 28
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 35
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 6.5
7.7
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 57
38
Embodied Water, L/kg 380
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
86
Resilience: Unit (Modulus of Resilience), kJ/m3 420
200
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 41
6.8
Thermal Shock Resistance, points 11
18

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
17.5 to 18.5
Copper (Cu), % 2.5 to 3.3
0
Iron (Fe), % 0 to 0.1
78.2 to 82.1
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.020
0
Niobium (Nb), % 0
0.3 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0.1 to 0.6
Zinc (Zn), % 92.2 to 94
0