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AISI 420 Stainless Steel vs. ZA-12

AISI 420 stainless steel belongs to the iron alloys classification, while ZA-12 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-12.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 190
83
Elongation at Break, % 8.0 to 15
1.6 to 5.3
Fatigue Strength, MPa 220 to 670
73 to 120
Poisson's Ratio 0.28
0.26
Rockwell B Hardness 84
56 to 63
Shear Modulus, GPa 76
33
Shear Strength, MPa 420 to 1010
240 to 300
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
260 to 400
Tensile Strength: Yield (Proof), MPa 380 to 1310
210 to 320

Thermal Properties

Latent Heat of Fusion, J/g 280
120
Maximum Temperature: Mechanical, °C 620
100
Melting Completion (Liquidus), °C 1510
430
Melting Onset (Solidus), °C 1450
380
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 27
120
Thermal Expansion, µm/m-K 10
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
42

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
11
Density, g/cm3 7.7
6.0
Embodied Carbon, kg CO2/kg material 2.0
3.4
Embodied Energy, MJ/kg 28
64
Embodied Water, L/kg 100
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
4.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
260 to 620
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
12 to 19
Strength to Weight: Bending, points 22 to 41
15 to 20
Thermal Diffusivity, mm2/s 7.3
43
Thermal Shock Resistance, points 25 to 62
9.4 to 14

Alloy Composition

Aluminum (Al), % 0
10.5 to 11.5
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.15 to 0.4
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0.5 to 1.2
Iron (Fe), % 82.3 to 87.9
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
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 0.060
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
87.1 to 89