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SAE-AISI 8640 Steel vs. Z41121 Zinc

SAE-AISI 8640 steel belongs to the iron alloys classification, while Z41121 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 8640 steel and the bottom bar is Z41121 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 23
50
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
35
Tensile Strength: Ultimate (UTS), MPa 570
140
Tensile Strength: Yield (Proof), MPa 380
120

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Maximum Temperature: Mechanical, °C 410
90
Melting Completion (Liquidus), °C 1460
410
Melting Onset (Solidus), °C 1420
400
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 39
110
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
37

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
54
Embodied Water, L/kg 50
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
68
Resilience: Unit (Modulus of Resilience), kJ/m3 380
79
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20
6.1
Strength to Weight: Bending, points 20
9.3
Thermal Diffusivity, mm2/s 10
44
Thermal Shock Resistance, points 17
4.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
0.080 to 0.49
Iron (Fe), % 96.6 to 97.8
0 to 0.010
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0.050 to 0.18
Zinc (Zn), % 0
99.292 to 99.87