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AWS E385 vs. Zamak 7

AWS E385 belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E385 and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
86
Elongation at Break, % 34
13
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 79
33
Tensile Strength: Ultimate (UTS), MPa 580
280

Thermal Properties

Latent Heat of Fusion, J/g 300
120
Melting Completion (Liquidus), °C 1440
390
Melting Onset (Solidus), °C 1390
380
Specific Heat Capacity, J/kg-K 460
410
Thermal Conductivity, W/m-K 14
110
Thermal Expansion, µm/m-K 14
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
27
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
38

Otherwise Unclassified Properties

Base Metal Price, % relative 31
11
Density, g/cm3 8.1
6.4
Embodied Carbon, kg CO2/kg material 5.8
3.0
Embodied Energy, MJ/kg 79
57
Embodied Water, L/kg 200
380

Common Calculations

Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20
12
Strength to Weight: Bending, points 19
15
Thermal Diffusivity, mm2/s 3.6
43
Thermal Shock Resistance, points 15
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 1.2 to 2.0
0 to 0.25
Iron (Fe), % 41.8 to 50.1
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 1.0 to 2.5
0
Molybdenum (Mo), % 4.2 to 5.2
0
Nickel (Ni), % 24 to 26
0.0050 to 0.020
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.9
0
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5