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Zamak 7 vs. ASTM Grade HN Steel

Zamak 7 belongs to the zinc alloys classification, while ASTM grade HN steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
140
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 13
9.0
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
77
Tensile Strength: Ultimate (UTS), MPa 280
500

Thermal Properties

Latent Heat of Fusion, J/g 120
310
Maximum Temperature: Mechanical, °C 95
1080
Melting Completion (Liquidus), °C 390
1400
Melting Onset (Solidus), °C 380
1350
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 6.4
7.9
Embodied Carbon, kg CO2/kg material 3.0
4.6
Embodied Energy, MJ/kg 57
66
Embodied Water, L/kg 380
180

Common Calculations

Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 12
17
Strength to Weight: Bending, points 15
18
Thermal Diffusivity, mm2/s 43
3.5
Thermal Shock Resistance, points 8.6
11

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
44.9 to 57.8
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0.0050 to 0.020
23 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0