Nickel Alloy 617 (N06617, NA50)
Nickel 617 is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. NA50 is the British Standard (BS) designation for this material. N06617 is the UNS number. And Nickel Alloy 617 is the common industry name.
The graph bars on the material properties cards below compare nickel 617 to: wrought nickels (top), all nickel alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
210 GPa 30 x 106 psi
Elongation at Break
40 %
Fatigue Strength
220 MPa 32 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
80 GPa 12 x 106 psi
Shear Strength
510 MPa 73 x 103 psi
Tensile Strength: Ultimate (UTS)
740 MPa 110 x 103 psi
Tensile Strength: Yield (Proof)
280 MPa 40 x 103 psi
Thermal Properties
Latent Heat of Fusion
330 J/g
Maximum Temperature: Mechanical
1010 °C 1850 °F
Melting Completion (Liquidus)
1380 °C 2520 °F
Melting Onset (Solidus)
1330 °C 2430 °F
Specific Heat Capacity
450 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
13 W/m-K 7.7 BTU/h-ft-°F
Thermal Expansion
12 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.5 % IACS
Otherwise Unclassified Properties
Base Metal Price
75 % relative
Density
8.5 g/cm3 530 lb/ft3
Embodied Carbon
10 kg CO2/kg material
Embodied Energy
140 MJ/kg 60 x 103 BTU/lb
Embodied Water
350 L/kg 41 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
230 MJ/m3
Resilience: Unit (Modulus of Resilience)
190 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
24 points
Strength to Weight: Bending
21 points
Thermal Diffusivity
3.5 mm2/s
Thermal Shock Resistance
21 points
Alloy Composition
| Ni | 44.5 to 62 | |
| Cr | 20 to 24 | |
| Co | 10 to 15 | |
| Mo | 8.0 to 10 | |
| Fe | 0 to 3.0 | |
| Al | 0.8 to 1.5 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 1.0 | |
| Cu | 0 to 0.5 | |
| C | 0.050 to 0.15 | |
| S | 0 to 0.015 | |
| B | 0 to 0.0060 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B546: Standard Specification for Electric Fusion-Welded Ni-Cr-Co-Mo Alloy (UNS N06617), Ni-Fe-Cr-Si Alloys (UNS N08330 and UNS N08332), Ni-Cr-Fe-Al Alloy (UNS N06603), Ni-Cr-Fe Alloy (UNS N06025), and Ni-Cr-Fe-Si Alloy (UNS N06045) Pipe
ASTM B166: Standard Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045) and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Rod, Bar, and Wire
ASTM B167: Standard Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045) and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Seamless Pipe and Tube
ASTM B168: Standard Specification Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045) and Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617) Plate, Sheet, and Strip
ASTM B564: Standard Specification for Nickel Alloy Forgings
Aerospace Materials, Brian Cantor et al. (editors), 2001
Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998