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SAE-AISI M3 Class 2 Steel vs. ZA-12

SAE-AISI M3 class 2 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 M3 class 2 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 77
33
Tensile Strength: Ultimate (UTS), MPa 770 to 2210
260 to 400

Thermal Properties

Latent Heat of Fusion, J/g 260
120
Melting Completion (Liquidus), °C 1620
430
Melting Onset (Solidus), °C 1570
380
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 26
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 12
3.4
Embodied Energy, MJ/kg 180
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 74
12 to 19
Strength to Weight: Bending, points 22 to 45
15 to 20
Thermal Diffusivity, mm2/s 7.2
43
Thermal Shock Resistance, points 24 to 69
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0.5 to 1.2
Iron (Fe), % 75.8 to 82.3
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), % 4.8 to 6.5
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), % 5.0 to 6.8
0
Vanadium (V), % 2.8 to 3.8
0
Zinc (Zn), % 0
87.1 to 89