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Grade CW12MW Nickel vs. Nickel 685

Both grade CW12MW nickel and nickel 685 are nickel alloys. They have 77% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade CW12MW nickel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 4.6
17
Fatigue Strength, MPa 130
470
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 85
77
Tensile Strength: Ultimate (UTS), MPa 560
1250
Tensile Strength: Yield (Proof), MPa 310
850

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Maximum Temperature: Mechanical, °C 960
1000
Melting Completion (Liquidus), °C 1610
1380
Melting Onset (Solidus), °C 1560
1330
Specific Heat Capacity, J/kg-K 410
460
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
75
Density, g/cm3 9.1
8.4
Embodied Carbon, kg CO2/kg material 13
10
Embodied Energy, MJ/kg 180
140
Embodied Water, L/kg 280
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
190
Resilience: Unit (Modulus of Resilience), kJ/m3 220
1820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 17
42
Strength to Weight: Bending, points 17
31
Thermal Shock Resistance, points 16
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.12
0.030 to 0.1
Chromium (Cr), % 15.5 to 17.5
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 4.5 to 7.5
0 to 2.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 16 to 18
3.5 to 5.0
Nickel (Ni), % 49.2 to 60.1
49.6 to 62.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Tungsten (W), % 3.8 to 5.3
0
Vanadium (V), % 0.2 to 0.4
0
Zinc (Zn), % 0
0.020 to 0.12