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SAE-AISI 5140 Steel vs. ZA-27

SAE-AISI 5140 steel belongs to the iron alloys classification, while ZA-27 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-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
100 to 120
Elastic (Young's, Tensile) Modulus, GPa 190
78
Elongation at Break, % 12 to 29
2.0 to 4.5
Fatigue Strength, MPa 220 to 570
110 to 170
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
31
Shear Strength, MPa 360 to 600
230 to 330
Tensile Strength: Ultimate (UTS), MPa 560 to 970
400 to 430
Tensile Strength: Yield (Proof), MPa 290 to 840
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 250
130
Maximum Temperature: Mechanical, °C 420
120
Melting Completion (Liquidus), °C 1460
480
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
530
Thermal Conductivity, W/m-K 45
130
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
30
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
53

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
11
Density, g/cm3 7.8
5.0
Embodied Carbon, kg CO2/kg material 1.4
4.2
Embodied Energy, MJ/kg 19
80
Embodied Water, L/kg 49
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
420 to 890
Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 24
28
Strength to Weight: Axial, points 20 to 34
22 to 24
Strength to Weight: Bending, points 19 to 28
24 to 25
Thermal Diffusivity, mm2/s 12
47
Thermal Shock Resistance, points 16 to 29
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
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
2.0 to 2.5
Iron (Fe), % 97.3 to 98.1
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
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 0.080
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
69.3 to 73