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EN 1.4640 Stainless Steel vs. Zamak 7

EN 1.4640 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 (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 200
80
Elastic (Young's, Tensile) Modulus, GPa 200
86
Elongation at Break, % 51
13
Fatigue Strength, MPa 230 to 250
47
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 77
33
Shear Strength, MPa 440 to 460
210
Tensile Strength: Ultimate (UTS), MPa 620 to 650
280
Tensile Strength: Yield (Proof), MPa 240 to 260
250

Thermal Properties

Latent Heat of Fusion, J/g 280
120
Maximum Temperature: Mechanical, °C 930
95
Melting Completion (Liquidus), °C 1420
390
Melting Onset (Solidus), °C 1380
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
38

Otherwise Unclassified Properties

Base Metal Price, % relative 14
11
Density, g/cm3 7.8
6.4
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 40
57
Embodied Water, L/kg 150
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250 to 260
36
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 170
370
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22 to 23
12
Strength to Weight: Bending, points 21
15
Thermal Diffusivity, mm2/s 4.0
43
Thermal Shock Resistance, points 14 to 15
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
0
Copper (Cu), % 1.3 to 2.0
0 to 0.25
Iron (Fe), % 67.4 to 73.6
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 1.5 to 4.0
0
Nickel (Ni), % 5.5 to 6.9
0.0050 to 0.020
Nitrogen (N), % 0.030 to 0.11
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.0010
Zinc (Zn), % 0
95.3 to 96.5