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AISI 309 Stainless Steel vs. Zamak 3

AISI 309 stainless steel belongs to the iron alloys classification, while Zamak 3 belongs to the zinc alloys. There are 32 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 309 stainless steel and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
83
Elastic (Young's, Tensile) Modulus, GPa 200
86
Elongation at Break, % 34 to 47
11
Fatigue Strength, MPa 250 to 280
48
Poisson's Ratio 0.27
0.25
Rockwell B Hardness 84
50
Shear Modulus, GPa 78
33
Shear Strength, MPa 420 to 470
210
Tensile Strength: Ultimate (UTS), MPa 600 to 710
280
Tensile Strength: Yield (Proof), MPa 260 to 350
210

Thermal Properties

Latent Heat of Fusion, J/g 290
120
Maximum Temperature: Mechanical, °C 980
95
Melting Completion (Liquidus), °C 1450
390
Melting Onset (Solidus), °C 1400
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 15
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
38

Otherwise Unclassified Properties

Base Metal Price, % relative 19
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 3.6
3.0
Embodied Energy, MJ/kg 51
57
Embodied Water, L/kg 170
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
28
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
260
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21 to 25
12
Strength to Weight: Bending, points 20 to 23
15
Thermal Diffusivity, mm2/s 4.3
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 0.0050
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58 to 66
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 15
0 to 0.020
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.030
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
95.3 to 96.5