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ASTM A387 Grade 2 Steel vs. Zamak 7

ASTM A387 grade 2 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 ASTM A387 grade 2 steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
80
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 25
13
Fatigue Strength, MPa 190 to 250
47
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 73
33
Shear Strength, MPa 300 to 350
210
Tensile Strength: Ultimate (UTS), MPa 470 to 550
280
Tensile Strength: Yield (Proof), MPa 260 to 350
250

Thermal Properties

Latent Heat of Fusion, J/g 250
120
Maximum Temperature: Mechanical, °C 420
95
Melting Completion (Liquidus), °C 1470
390
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 45
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
38

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
11
Density, g/cm3 7.9
6.4
Embodied Carbon, kg CO2/kg material 1.6
3.0
Embodied Energy, MJ/kg 20
57
Embodied Water, L/kg 50
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
36
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
370
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 20
12
Strength to Weight: Bending, points 17 to 19
15
Thermal Diffusivity, mm2/s 12
43
Thermal Shock Resistance, points 14 to 16
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.050 to 0.21
0
Chromium (Cr), % 0.5 to 0.8
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97.1 to 98.3
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0.55 to 0.8
0
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0
0.0050 to 0.020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.15 to 0.4
0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5