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Nickel 80A vs. Nickel 684

Both nickel 80A and nickel 684 are nickel alloys. Both are furnished in the aged (precipitation hardened) condition. They have 77% of their average alloy composition in common. There are 26 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 nickel 80A and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
11
Fatigue Strength, MPa 430
390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
76
Shear Strength, MPa 660
710
Tensile Strength: Ultimate (UTS), MPa 1040
1190
Tensile Strength: Yield (Proof), MPa 710
800

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 980
1000
Melting Completion (Liquidus), °C 1360
1370
Melting Onset (Solidus), °C 1310
1320
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 55
75
Density, g/cm3 8.3
8.3
Embodied Carbon, kg CO2/kg material 9.8
10
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 280
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1300
1610
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 35
40
Strength to Weight: Bending, points 27
30
Thermal Shock Resistance, points 31
34

Alloy Composition

Aluminum (Al), % 0.5 to 1.8
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 18 to 21
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 0 to 3.0
0 to 4.0
Manganese (Mn), % 0 to 1.0
0 to 0.75
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 69.4 to 79.7
42.7 to 64
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 1.8 to 2.7
2.5 to 3.3