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ASTM A372 Grade K Steel vs. Zamak 2

ASTM A372 grade K steel belongs to the iron alloys classification, while Zamak 2 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 A372 grade K steel and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
100
Elastic (Young's, Tensile) Modulus, GPa 190
87
Elongation at Break, % 23
6.0
Fatigue Strength, MPa 440
59
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
33
Shear Strength, MPa 490
320
Tensile Strength: Ultimate (UTS), MPa 780
360
Tensile Strength: Yield (Proof), MPa 620
270

Thermal Properties

Latent Heat of Fusion, J/g 250
130
Maximum Temperature: Mechanical, °C 440
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 48
110
Thermal Expansion, µm/m-K 13
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
35

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
12
Density, g/cm3 7.9
6.5
Embodied Carbon, kg CO2/kg material 1.8
3.0
Embodied Energy, MJ/kg 24
57
Embodied Water, L/kg 57
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
20
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
420
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 27
15
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 13
41
Thermal Shock Resistance, points 23
11

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.18
0
Chromium (Cr), % 1.0 to 1.8
0
Copper (Cu), % 0
2.5 to 3.3
Iron (Fe), % 93.4 to 96.6
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0.1 to 0.4
0
Molybdenum (Mo), % 0.2 to 0.6
0
Nickel (Ni), % 2.0 to 3.3
0 to 0.020
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0.15 to 0.35
0 to 0.030
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
92.2 to 94