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Zamak 7 vs. ASTM Grade HP Steel

Zamak 7 belongs to the zinc alloys classification, while ASTM grade HP steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
140
Elastic (Young's, Tensile) Modulus, GPa 86
200
Elongation at Break, % 13
5.1
Fatigue Strength, MPa 47
130
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 33
78
Tensile Strength: Ultimate (UTS), MPa 280
490
Tensile Strength: Yield (Proof), MPa 250
260

Thermal Properties

Latent Heat of Fusion, J/g 120
320
Maximum Temperature: Mechanical, °C 95
1100
Melting Completion (Liquidus), °C 390
1370
Melting Onset (Solidus), °C 380
1330
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 27
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
34
Density, g/cm3 6.4
7.9
Embodied Carbon, kg CO2/kg material 3.0
5.8
Embodied Energy, MJ/kg 57
82
Embodied Water, L/kg 380
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
21
Resilience: Unit (Modulus of Resilience), kJ/m3 370
170
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
17
Thermal Diffusivity, mm2/s 43
3.2
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
0.35 to 0.75
Chromium (Cr), % 0
24 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.075
29.2 to 42.7
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
33 to 37
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.5
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0