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Zamak 2 vs. S31655 Stainless Steel

Zamak 2 belongs to the zinc alloys classification, while S31655 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 S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
210
Elastic (Young's, Tensile) Modulus, GPa 87
200
Elongation at Break, % 6.0
39
Fatigue Strength, MPa 59
300
Poisson's Ratio 0.26
0.28
Rockwell B Hardness 63
88
Shear Modulus, GPa 33
78
Shear Strength, MPa 320
490
Tensile Strength: Ultimate (UTS), MPa 360
710
Tensile Strength: Yield (Proof), MPa 270
350

Thermal Properties

Latent Heat of Fusion, J/g 130
290
Maximum Temperature: Mechanical, °C 95
1010
Melting Completion (Liquidus), °C 390
1430
Melting Onset (Solidus), °C 380
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 28
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 35
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
17
Density, g/cm3 6.5
7.8
Embodied Carbon, kg CO2/kg material 3.0
3.3
Embodied Energy, MJ/kg 57
46
Embodied Water, L/kg 380
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
230
Resilience: Unit (Modulus of Resilience), kJ/m3 420
310
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
25
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 41
4.0
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 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 2.5 to 3.3
0 to 1.0
Iron (Fe), % 0 to 0.1
63.2 to 71.9
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 1.5
Nickel (Ni), % 0 to 0.020
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.030
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 92.2 to 94
0