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Grade VDC Steel vs. ZA-12

Grade VDC steel belongs to the iron alloys classification, while ZA-12 belongs to the zinc alloys. There are 25 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade VDC steel and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
83
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 80
33
Tensile Strength: Ultimate (UTS), MPa 1700
260 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 400
100
Melting Completion (Liquidus), °C 1450
430
Melting Onset (Solidus), °C 1410
380
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 51
120
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
42

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
11
Density, g/cm3 7.8
6.0
Embodied Carbon, kg CO2/kg material 1.4
3.4
Embodied Energy, MJ/kg 19
64
Embodied Water, L/kg 47
440

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60
12 to 19
Strength to Weight: Bending, points 40
15 to 20
Thermal Diffusivity, mm2/s 14
43
Thermal Shock Resistance, points 50
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.060
0.5 to 1.2
Iron (Fe), % 98.3 to 99.35
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0.5 to 1.0
0
Nickel (Ni), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.3
0 to 0.060
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
87.1 to 89