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Zamak 2 vs. S44725 Stainless Steel

Zamak 2 belongs to the zinc alloys classification, while S44725 stainless steel belongs to the iron alloys. There are 32 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 Zamak 2 and the bottom bar is S44725 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
180
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.0
22
Fatigue Strength, MPa 59
210
Poisson's Ratio 0.26
0.27
Rockwell B Hardness 63
84
Shear Modulus, GPa 33
81
Shear Strength, MPa 320
320
Tensile Strength: Ultimate (UTS), MPa 360
500
Tensile Strength: Yield (Proof), MPa 270
310

Thermal Properties

Latent Heat of Fusion, J/g 130
290
Maximum Temperature: Mechanical, °C 95
1100
Melting Completion (Liquidus), °C 390
1450
Melting Onset (Solidus), °C 380
1410
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
17
Thermal Expansion, µm/m-K 28
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 35
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 6.5
7.7
Embodied Carbon, kg CO2/kg material 3.0
3.1
Embodied Energy, MJ/kg 57
44
Embodied Water, L/kg 380
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
99
Resilience: Unit (Modulus of Resilience), kJ/m3 420
240
Stiffness to Weight: Axial, points 7.5
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 41
4.6
Thermal Shock Resistance, points 11
16

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
25 to 28.5
Copper (Cu), % 2.5 to 3.3
0
Iron (Fe), % 0 to 0.1
67.6 to 73.5
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 0.4
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 0 to 0.020
0 to 0.3
Niobium (Nb), % 0
0 to 0.26
Nitrogen (N), % 0
0 to 0.018
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.030
0 to 0.040
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0
0 to 0.26
Zinc (Zn), % 92.2 to 94
0