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SAE-AISI M4 Steel vs. Z21721 Zinc

SAE-AISI M4 steel belongs to the iron alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
87
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 76
35
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
150

Thermal Properties

Latent Heat of Fusion, J/g 260
110
Melting Completion (Liquidus), °C 1610
410
Melting Onset (Solidus), °C 1560
390
Specific Heat Capacity, J/kg-K 440
390
Thermal Conductivity, W/m-K 25
110
Thermal Expansion, µm/m-K 12
26

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.3
6.6
Embodied Carbon, kg CO2/kg material 14
2.8
Embodied Energy, MJ/kg 210
53
Embodied Water, L/kg 110
340

Common Calculations

Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 26 to 72
6.4
Strength to Weight: Bending, points 23 to 45
9.6
Thermal Diffusivity, mm2/s 6.9
44
Thermal Shock Resistance, points 24 to 68
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
0 to 0.0050
Iron (Fe), % 75.9 to 81.4
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
98.9 to 100