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AISI 420 Stainless Steel vs. Zamak 7

AISI 420 stainless steel belongs to the iron alloys classification, while Zamak 7 belongs to the zinc alloys. There are 31 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 420 stainless steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
80
Elastic (Young's, Tensile) Modulus, GPa 190
86
Elongation at Break, % 8.0 to 15
13
Fatigue Strength, MPa 220 to 670
47
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 76
33
Shear Strength, MPa 420 to 1010
210
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
280
Tensile Strength: Yield (Proof), MPa 380 to 1310
250

Thermal Properties

Latent Heat of Fusion, J/g 280
120
Maximum Temperature: Mechanical, °C 620
95
Melting Completion (Liquidus), °C 1510
390
Melting Onset (Solidus), °C 1450
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 27
110
Thermal Expansion, µm/m-K 10
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
38

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
11
Density, g/cm3 7.7
6.4
Embodied Carbon, kg CO2/kg material 2.0
3.0
Embodied Energy, MJ/kg 28
57
Embodied Water, L/kg 100
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
36
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
370
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25 to 62
12
Strength to Weight: Bending, points 22 to 41
15
Thermal Diffusivity, mm2/s 7.3
43
Thermal Shock Resistance, points 25 to 62
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.15 to 0.4
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 82.3 to 87.9
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
0.0050 to 0.020
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5