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SAE-AISI M4 Steel vs. Zamak 5

SAE-AISI M4 steel belongs to the iron alloys classification, while Zamak 5 belongs to the zinc alloys. There are 21 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is Zamak 5.

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
33
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
330

Thermal Properties

Latent Heat of Fusion, J/g 260
120
Melting Completion (Liquidus), °C 1610
390
Melting Onset (Solidus), °C 1560
380
Specific Heat Capacity, J/kg-K 440
410
Thermal Conductivity, W/m-K 25
110
Thermal Expansion, µm/m-K 12
27

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 8.3
6.4
Embodied Carbon, kg CO2/kg material 14
3.0
Embodied Energy, MJ/kg 210
57
Embodied Water, L/kg 110
380

Common Calculations

Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 72
14
Strength to Weight: Bending, points 23 to 45
16
Thermal Diffusivity, mm2/s 6.9
42
Thermal Shock Resistance, points 24 to 68
9.9

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
0.7 to 1.3
Iron (Fe), % 75.9 to 81.4
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.025 to 0.080
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.3 to 5.5
0
Nickel (Ni), % 0 to 0.3
0 to 0.020
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0 to 0.030
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0
Zinc (Zn), % 0
94.3 to 95.7