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AISI 321H Stainless Steel vs. ZA-27

AISI 321H 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 (7, in this case) are not shown.

For each property being compared, the top bar is AISI 321H 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 200
78
Elongation at Break, % 40
2.0 to 4.5
Fatigue Strength, MPa 200
110 to 170
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 82
60 to 72
Shear Modulus, GPa 77
31
Shear Strength, MPa 400
230 to 330
Tensile Strength: Ultimate (UTS), MPa 580
400 to 430
Tensile Strength: Yield (Proof), MPa 230
260 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
130
Maximum Temperature: Mechanical, °C 940
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 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
30
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
53

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.8
5.0
Embodied Carbon, kg CO2/kg material 3.2
4.2
Embodied Energy, MJ/kg 46
80
Embodied Water, L/kg 140
570

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
8.1 to 18
Resilience: Unit (Modulus of Resilience), kJ/m3 140
420 to 890
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
28
Strength to Weight: Axial, points 21
22 to 24
Strength to Weight: Bending, points 20
24 to 25
Thermal Diffusivity, mm2/s 4.0
47
Thermal Shock Resistance, points 12
14 to 15

Alloy Composition

Aluminum (Al), % 0
25 to 28
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
2.0 to 2.5
Iron (Fe), % 65.4 to 74
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 12
0 to 0.020
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.080
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.7
0
Zinc (Zn), % 0
69.3 to 73