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Nickel 684 vs. S34565 Stainless Steel

Nickel 684 belongs to the nickel alloys classification, while S34565 stainless steel belongs to the iron alloys. They have 41% of their average alloy composition in common. There are 28 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 nickel 684 and the bottom bar is S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
200
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 11
39
Fatigue Strength, MPa 390
400
Poisson's Ratio 0.29
0.28
Reduction in Area, % 17
45
Shear Modulus, GPa 76
80
Shear Strength, MPa 710
610
Tensile Strength: Ultimate (UTS), MPa 1190
900
Tensile Strength: Yield (Proof), MPa 800
470

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1370
1420
Melting Onset (Solidus), °C 1320
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 75
28
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 10
5.3
Embodied Energy, MJ/kg 140
73
Embodied Water, L/kg 360
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
300
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 40
32
Strength to Weight: Bending, points 30
26
Thermal Shock Resistance, points 34
22

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 0.030
Chromium (Cr), % 15 to 20
23 to 25
Cobalt (Co), % 13 to 20
0
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 4.0
43.2 to 51.6
Manganese (Mn), % 0 to 0.75
5.0 to 7.0
Molybdenum (Mo), % 3.0 to 5.0
4.0 to 5.0
Nickel (Ni), % 42.7 to 64
16 to 18
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 2.5 to 3.3
0