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AISI 321H Stainless Steel vs. N10665 Nickel

AISI 321H stainless steel belongs to the iron alloys classification, while N10665 nickel belongs to the nickel alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 321H stainless steel and the bottom bar is N10665 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 40
45
Fatigue Strength, MPa 200
340
Poisson's Ratio 0.28
0.31
Rockwell B Hardness 82
86
Shear Modulus, GPa 77
84
Shear Strength, MPa 400
600
Tensile Strength: Ultimate (UTS), MPa 580
860
Tensile Strength: Yield (Proof), MPa 230
400

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 940
900
Melting Completion (Liquidus), °C 1430
1620
Melting Onset (Solidus), °C 1380
1570
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
1.2

Otherwise Unclassified Properties

Base Metal Price, % relative 16
75
Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 3.2
15
Embodied Energy, MJ/kg 46
200
Embodied Water, L/kg 140
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
320
Resilience: Unit (Modulus of Resilience), kJ/m3 140
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
3.1
Thermal Shock Resistance, points 12
27

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.020
Chromium (Cr), % 17 to 19
0 to 1.0
Cobalt (Co), % 0
0 to 1.0
Iron (Fe), % 65.4 to 74
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
26 to 30
Nickel (Ni), % 9.0 to 12
64.8 to 74
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.7
0