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SAE-AISI M4 Steel vs. ZA-12

SAE-AISI M4 steel belongs to the iron alloys classification, while ZA-12 belongs to the zinc alloys. There are 21 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
83
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 76
33
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
260 to 400

Thermal Properties

Latent Heat of Fusion, J/g 260
120
Melting Completion (Liquidus), °C 1610
430
Melting Onset (Solidus), °C 1560
380
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 25
120
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.3
6.0
Embodied Carbon, kg CO2/kg material 14
3.4
Embodied Energy, MJ/kg 210
64
Embodied Water, L/kg 110
440

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
12 to 19
Strength to Weight: Bending, points 23 to 45
15 to 20
Thermal Diffusivity, mm2/s 6.9
43
Thermal Shock Resistance, points 24 to 68
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 1.3 to 1.4
0
Chromium (Cr), % 3.8 to 4.8
0
Copper (Cu), % 0 to 0.25
0.5 to 1.2
Iron (Fe), % 75.9 to 81.4
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
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 0.060
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
87.1 to 89