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SAE-AISI 1140 Steel vs. Zamak 7

SAE-AISI 1140 steel belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1140 steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
80
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 14 to 18
13
Fatigue Strength, MPa 230 to 370
47
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 72
33
Shear Strength, MPa 370 to 420
210
Tensile Strength: Ultimate (UTS), MPa 600 to 700
280
Tensile Strength: Yield (Proof), MPa 340 to 570
250

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 400
95
Melting Completion (Liquidus), °C 1460
390
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 51
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
38

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 1.4
3.0
Embodied Energy, MJ/kg 18
57
Embodied Water, L/kg 46
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 93
36
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 870
370
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21 to 25
12
Strength to Weight: Bending, points 20 to 22
15
Thermal Diffusivity, mm2/s 14
43
Thermal Shock Resistance, points 18 to 21
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.37 to 0.44
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.4 to 98.9
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0.7 to 1.0
0
Nickel (Ni), % 0
0.0050 to 0.020
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0.080 to 0.13
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5