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S82121 Stainless Steel vs. ZA-27

S82121 stainless steel belongs to the iron alloys classification, while ZA-27 belongs to the zinc alloys. There are 31 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S82121 stainless steel and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
100 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
78
Elongation at Break, % 28
2.0 to 4.5
Fatigue Strength, MPa 370
110 to 170
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 78
31
Shear Strength, MPa 470
230 to 330
Tensile Strength: Ultimate (UTS), MPa 730
400 to 430
Tensile Strength: Yield (Proof), MPa 510
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
130
Maximum Temperature: Mechanical, °C 1020
120
Melting Completion (Liquidus), °C 1430
480
Melting Onset (Solidus), °C 1380
380
Specific Heat Capacity, J/kg-K 480
530
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
53

Otherwise Unclassified Properties

Base Metal Price, % relative 14
11
Density, g/cm3 7.7
5.0
Embodied Carbon, kg CO2/kg material 2.8
4.2
Embodied Energy, MJ/kg 40
80
Embodied Water, L/kg 150
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 660
420 to 890
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
28
Strength to Weight: Axial, points 26
22 to 24
Strength to Weight: Bending, points 23
24 to 25
Thermal Diffusivity, mm2/s 4.0
47
Thermal Shock Resistance, points 20
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.035
0
Chromium (Cr), % 21 to 23
0
Copper (Cu), % 0.2 to 1.2
2.0 to 2.5
Iron (Fe), % 66.7 to 75.4
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Manganese (Mn), % 1.0 to 2.5
0
Molybdenum (Mo), % 0.3 to 1.3
0
Nickel (Ni), % 2.0 to 4.0
0 to 0.020
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
69.3 to 73