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ASTM A369 Grade FP91 vs. Zamak 3

ASTM A369 grade FP91 belongs to the iron alloys classification, while Zamak 3 belongs to the zinc 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 ASTM A369 grade FP91 and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
83
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 19
11
Fatigue Strength, MPa 320
48
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 75
33
Shear Strength, MPa 410
210
Tensile Strength: Ultimate (UTS), MPa 670
280
Tensile Strength: Yield (Proof), MPa 460
210

Thermal Properties

Latent Heat of Fusion, J/g 270
120
Maximum Temperature: Mechanical, °C 600
95
Melting Completion (Liquidus), °C 1460
390
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 26
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
27
Electrical Conductivity: Equal Weight (Specific), % IACS 10
38

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 37
57
Embodied Water, L/kg 88
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
28
Resilience: Unit (Modulus of Resilience), kJ/m3 560
260
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
12
Strength to Weight: Bending, points 22
15
Thermal Diffusivity, mm2/s 6.9
43
Thermal Shock Resistance, points 18
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.020
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 87.3 to 90.3
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0 to 0.020
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.2 to 0.5
0 to 0.030
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
95.3 to 96.5
Zirconium (Zr), % 0 to 0.010
0