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ZA-27 vs. S21800 Stainless Steel

ZA-27 belongs to the zinc alloys classification, while S21800 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ZA-27 and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 120
210
Elastic (Young's, Tensile) Modulus, GPa 78
190
Elongation at Break, % 2.0 to 4.5
40
Fatigue Strength, MPa 110 to 170
330
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 60 to 72
88
Shear Modulus, GPa 31
75
Shear Strength, MPa 230 to 330
510
Tensile Strength: Ultimate (UTS), MPa 400 to 430
740
Tensile Strength: Yield (Proof), MPa 260 to 370
390

Thermal Properties

Latent Heat of Fusion, J/g 130
340
Maximum Temperature: Mechanical, °C 120
900
Melting Completion (Liquidus), °C 480
1360
Melting Onset (Solidus), °C 380
1310
Specific Heat Capacity, J/kg-K 530
500
Thermal Expansion, µm/m-K 26
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 5.0
7.5
Embodied Carbon, kg CO2/kg material 4.2
3.1
Embodied Energy, MJ/kg 80
45
Embodied Water, L/kg 570
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1 to 18
250
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 890
390
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 28
26
Strength to Weight: Axial, points 22 to 24
27
Strength to Weight: Bending, points 24 to 25
24
Thermal Shock Resistance, points 14 to 15
17

Alloy Composition

Aluminum (Al), % 25 to 28
0
Cadmium (Cd), % 0 to 0.0060
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 2.0 to 2.5
0
Iron (Fe), % 0 to 0.1
59.1 to 65.4
Lead (Pb), % 0 to 0.0060
0
Magnesium (Mg), % 0.010 to 0.020
0
Manganese (Mn), % 0
7.0 to 9.0
Nickel (Ni), % 0 to 0.020
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.080
3.5 to 4.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.0030
0
Zinc (Zn), % 69.3 to 73
0