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Zamak 3 vs. ASTM A387 Grade 21L Class 1

Zamak 3 belongs to the zinc alloys classification, while ASTM A387 grade 21L class 1 belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
150
Elastic (Young's, Tensile) Modulus, GPa 86
190
Elongation at Break, % 11
21
Fatigue Strength, MPa 48
160
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 33
74
Shear Strength, MPa 210
310
Tensile Strength: Ultimate (UTS), MPa 280
500
Tensile Strength: Yield (Proof), MPa 210
230

Thermal Properties

Latent Heat of Fusion, J/g 120
260
Maximum Temperature: Mechanical, °C 95
480
Melting Completion (Liquidus), °C 390
1470
Melting Onset (Solidus), °C 380
1430
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 110
41
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 38
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.1
Density, g/cm3 6.4
7.9
Embodied Carbon, kg CO2/kg material 3.0
1.8
Embodied Energy, MJ/kg 57
23
Embodied Water, L/kg 380
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
84
Resilience: Unit (Modulus of Resilience), kJ/m3 260
140
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 12
18
Strength to Weight: Bending, points 15
18
Thermal Diffusivity, mm2/s 43
11
Thermal Shock Resistance, points 8.6
14

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.1
94.4 to 96.1
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.030
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 95.3 to 96.5
0