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ASTM A266 Carbon Steel vs. Z21721 Zinc

ASTM A266 carbon steel belongs to the iron alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A266 carbon steel and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 21 to 26
40
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
35
Tensile Strength: Ultimate (UTS), MPa 500 to 600
150
Tensile Strength: Yield (Proof), MPa 230 to 290
120

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Maximum Temperature: Mechanical, °C 400
90
Melting Completion (Liquidus), °C 1460
410
Melting Onset (Solidus), °C 1420
390
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 51 to 52
110
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
37

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
6.6
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18 to 19
53
Embodied Water, L/kg 46 to 47
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
57
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
88
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 18 to 21
6.4
Strength to Weight: Bending, points 18 to 20
9.6
Thermal Diffusivity, mm2/s 14
44
Thermal Shock Resistance, points 16 to 19
4.8