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Nickel 684 vs. N08320 Stainless Steel

Nickel 684 belongs to the nickel alloys classification, while N08320 stainless steel belongs to the iron alloys. They have 46% of their average alloy composition in common. There are 27 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 nickel 684 and the bottom bar is N08320 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 390
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 710
400
Tensile Strength: Ultimate (UTS), MPa 1190
580
Tensile Strength: Yield (Proof), MPa 800
220

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1370
1400
Melting Onset (Solidus), °C 1320
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
28
Density, g/cm3 8.3
8.0
Embodied Carbon, kg CO2/kg material 10
4.9
Embodied Energy, MJ/kg 140
69
Embodied Water, L/kg 360
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 40
20
Strength to Weight: Bending, points 30
20
Thermal Shock Resistance, points 34
13

Alloy Composition

Aluminum (Al), % 2.5 to 3.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 15 to 20
21 to 23
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 4.0
40.4 to 50
Manganese (Mn), % 0 to 0.75
0 to 2.5
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 42.7 to 64
25 to 27
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.5 to 3.3
0