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Nickel 685 vs. AISI W2 Steel

Nickel 685 belongs to the nickel alloys classification, while AISI W2 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is nickel 685 and the bottom bar is AISI W2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 1250
580 to 2400

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
45
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.3
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 10
2.0
Embodied Energy, MJ/kg 140
29
Embodied Water, L/kg 340
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 42
21 to 86
Strength to Weight: Bending, points 31
20 to 51
Thermal Diffusivity, mm2/s 3.3
12
Thermal Shock Resistance, points 37
19 to 80

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.1
0.85 to 1.5
Chromium (Cr), % 18 to 21
0 to 0.15
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0 to 0.2
Iron (Fe), % 0 to 2.0
96.2 to 98.6
Manganese (Mn), % 0 to 1.0
0.35 to 0.74
Molybdenum (Mo), % 3.5 to 5.0
0 to 0.1
Nickel (Ni), % 49.6 to 62.5
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.75
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 2.8 to 3.3
0
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
0.15 to 0.35
Zinc (Zn), % 0.020 to 0.12
0