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SAE-AISI A8 Steel vs. ZA-8

SAE-AISI A8 steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 23 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A8 steel and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
85 to 86
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 74
34
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
210 to 370

Thermal Properties

Latent Heat of Fusion, J/g 270
110
Melting Completion (Liquidus), °C 1480
400
Melting Onset (Solidus), °C 1430
380
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 37
120
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
28
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
40

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
11
Density, g/cm3 7.9
6.3
Embodied Carbon, kg CO2/kg material 2.3
3.3
Embodied Energy, MJ/kg 31
62
Embodied Water, L/kg 73
420

Common Calculations

Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 25 to 68
9.3 to 17
Strength to Weight: Bending, points 22 to 44
12 to 18
Thermal Diffusivity, mm2/s 9.9
42
Thermal Shock Resistance, points 22 to 62
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.5 to 0.6
0
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
0.8 to 1.3
Iron (Fe), % 88.5 to 91.9
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 1.2 to 1.7
0
Nickel (Ni), % 0 to 0.3
0 to 0.020
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.75 to 1.1
0 to 0.045
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 1.0 to 1.5
0
Zinc (Zn), % 0
89.7 to 91.2

Comparable Variants