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SAE-AISI 5140 Steel vs. ZA-12

SAE-AISI 5140 steel belongs to the iron alloys classification, while ZA-12 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5140 steel and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
83
Elongation at Break, % 12 to 29
1.6 to 5.3
Fatigue Strength, MPa 220 to 570
73 to 120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
33
Shear Strength, MPa 360 to 600
240 to 300
Tensile Strength: Ultimate (UTS), MPa 560 to 970
260 to 400
Tensile Strength: Yield (Proof), MPa 290 to 840
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 420
100
Melting Completion (Liquidus), °C 1460
430
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 45
120
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
42

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
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 49
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
260 to 620
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 34
12 to 19
Strength to Weight: Bending, points 19 to 28
15 to 20
Thermal Diffusivity, mm2/s 12
43
Thermal Shock Resistance, points 16 to 29
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
0.5 to 1.2
Iron (Fe), % 97.3 to 98.1
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Manganese (Mn), % 0.7 to 0.9
0
Nickel (Ni), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0 to 0.060
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
87.1 to 89