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AISI 420 Stainless Steel vs. ZA-27

AISI 420 stainless steel belongs to the iron alloys classification, while ZA-27 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 420 stainless steel and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
100 to 120
Elastic (Young's, Tensile) Modulus, GPa 190
78
Elongation at Break, % 8.0 to 15
2.0 to 4.5
Fatigue Strength, MPa 220 to 670
110 to 170
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 84
60 to 72
Shear Modulus, GPa 76
31
Shear Strength, MPa 420 to 1010
230 to 330
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
400 to 430
Tensile Strength: Yield (Proof), MPa 380 to 1310
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 280
130
Maximum Temperature: Mechanical, °C 620
120
Melting Completion (Liquidus), °C 1510
480
Melting Onset (Solidus), °C 1450
380
Specific Heat Capacity, J/kg-K 480
530
Thermal Conductivity, W/m-K 27
130
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
30
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
53

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
11
Density, g/cm3 7.7
5.0
Embodied Carbon, kg CO2/kg material 2.0
4.2
Embodied Energy, MJ/kg 28
80
Embodied Water, L/kg 100
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
420 to 890
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
28
Strength to Weight: Axial, points 25 to 62
22 to 24
Strength to Weight: Bending, points 22 to 41
24 to 25
Thermal Diffusivity, mm2/s 7.3
47
Thermal Shock Resistance, points 25 to 62
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.15 to 0.4
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
2.0 to 2.5
Iron (Fe), % 82.3 to 87.9
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
0 to 0.020
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
69.3 to 73