UNS N06230 (2.4733, NiCr22W14Mo) Nickel Alloy
N06230 nickel is a nickel alloy formulated for primary forming into wrought products. 2.4733 is the EN numeric designation for this material. NiCr22W14Mo is the EN chemical designation. And N06230 is the UNS number.
It has the lowest thermal conductivity among wrought nickels. In addition, it has a moderately high base cost and a moderately low heat capacity.
The properties of N06230 nickel include two common variations. This page shows summary ranges across both of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare N06230 nickel 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 31 x 106 psi
Elongation at Break
38 to 48 %
Fatigue Strength
250 to 360 MPa 37 to 52 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
83 GPa 12 x 106 psi
Shear Strength
420 to 600 MPa 61 to 86 x 103 psi
Tensile Strength: Ultimate (UTS)
620 to 840 MPa 89 to 120 x 103 psi
Tensile Strength: Yield (Proof)
330 to 400 MPa 47 to 58 x 103 psi
Thermal Properties
Latent Heat of Fusion
310 J/g
Maximum Temperature: Mechanical
990 °C 1810 °F
Melting Completion (Liquidus)
1370 °C 2500 °F
Melting Onset (Solidus)
1300 °C 2370 °F
Specific Heat Capacity
420 J/kg-K 0.1 BTU/lb-°F
Thermal Conductivity
8.9 W/m-K 5.2 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.3 % IACS
Otherwise Unclassified Properties
Base Metal Price
85 % relative
Density
9.5 g/cm3 590 lb/ft3
Embodied Carbon
11 kg CO2/kg material
Embodied Energy
160 MJ/kg 71 x 103 BTU/lb
Embodied Water
290 L/kg 34 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
200 to 330 MJ/m3
Resilience: Unit (Modulus of Resilience)
250 to 380 kJ/m3
Stiffness to Weight: Axial
12 points
Stiffness to Weight: Bending
21 points
Strength to Weight: Axial
18 to 25 points
Strength to Weight: Bending
17 to 21 points
Thermal Diffusivity
2.3 mm2/s
Thermal Shock Resistance
17 to 23 points
Alloy Composition
| Ni | 47.5 to 65.2 | |
| Cr | 20 to 24 | |
| W | 13 to 15 | |
| Co | 0 to 5.0 | |
| Mo | 1.0 to 3.0 | |
| Fe | 0 to 3.0 | |
| Mn | 0.3 to 1.0 | |
| Si | 0.25 to 0.75 | |
| Al | 0.2 to 0.5 | |
| C | 0.050 to 0.15 | |
| La | 0.0050 to 0.050 | |
| P | 0 to 0.030 | |
| S | 0 to 0.015 | |
| B | 0 to 0.015 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B626: Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Tube
ASTM B622: Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
Welding Metallurgy and Weldability of Nickel-Base Alloys, John C. Lippold et al., 2009
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998