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ASTM A302 Alloy Steel vs. Zamak 3

ASTM A302 alloy steel belongs to the iron alloys classification, while Zamak 3 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 ASTM A302 alloy steel and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
83
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 20 to 23
11
Fatigue Strength, MPa 250 to 280
48
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
33
Shear Strength, MPa 370 to 390
210
Tensile Strength: Ultimate (UTS), MPa 590 to 620
280
Tensile Strength: Yield (Proof), MPa 350 to 390
210

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 410
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 39 to 51
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
38

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
11
Density, g/cm3 7.8 to 7.9
6.4
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
3.0
Embodied Energy, MJ/kg 20 to 21
57
Embodied Water, L/kg 48 to 50
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
28
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
260
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21 to 22
12
Strength to Weight: Bending, points 20 to 21
15
Thermal Diffusivity, mm2/s 10 to 14
43
Thermal Shock Resistance, points 17 to 18
8.6