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Nickel 689 vs. Nickel 685

Both nickel 689 and nickel 685 are nickel alloys. Both are furnished in the aged (precipitation hardened) condition. They have a moderately high 93% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is nickel 689 and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
350
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
17
Fatigue Strength, MPa 420
470
Poisson's Ratio 0.29
0.29
Reduction in Area, % 21
20
Shear Modulus, GPa 80
77
Shear Strength, MPa 790
770
Tensile Strength: Ultimate (UTS), MPa 1250
1250
Tensile Strength: Yield (Proof), MPa 690
850

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Maximum Temperature: Mechanical, °C 990
1000
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 450
460
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
75
Density, g/cm3 8.5
8.4
Embodied Carbon, kg CO2/kg material 11
10
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 330
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
1820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 41
42
Strength to Weight: Bending, points 30
31
Thermal Shock Resistance, points 35
37

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
1.2 to 1.6
Boron (B), % 0.0030 to 0.010
0.0030 to 0.010
Carbon (C), % 0.1 to 0.2
0.030 to 0.1
Chromium (Cr), % 18 to 20
18 to 21
Cobalt (Co), % 9.0 to 11
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 5.0
0 to 2.0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 9.0 to 10.5
3.5 to 5.0
Nickel (Ni), % 48.3 to 60.9
49.6 to 62.5
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.3 to 2.8
2.8 to 3.3
Zinc (Zn), % 0
0.020 to 0.12