VT machining offers CNC Turning for Incoloy 800 (UNS N08800 / 1.4876), typically supplied annealed. Fe-Ni-Cr alloy for oxidation and carburisation resistance.
CNC Turning Notes for Incoloy 800
On the lathe Incoloy 800 needs chip-breaker inserts and constant chip load to avoid long, stringy swarf.
For estimating, a 100 × 100 × 10 mm block of Incoloy 800 weighs about 0.79 kg.
Starting Parameters for CNC Turning Incoloy 800
| Cutting speed (carbide) | 30-80 m/min |
|---|---|
| Feed | 0.05-0.15 mm/rev |
| Spindle speed, Ø25 mm bar | 380-1020 rpm |
| Insert / tool class | ISO S — sharp PVD-coated carbide |
| Coolant | High-pressure emulsion; ceramic inserts run dry for roughing |
Starting values for Incoloy 800, Annealed; optimised on the first article.
Incoloy 800 Data Relevant to CNC Turning
| Equivalent designations | UNS N08800 / 1.4876 |
|---|---|
| Key composition | Ni 30-35%, Cr 19-23%, Fe bal. |
| Typical supply condition | Annealed |
| Hardness (typical) | ~75-85 HRB |
| Machinability rating | 20% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How Incoloy 800 Differs
Fe-Ni-Cr alloy for oxidation and carburisation resistance.
Typical applications: Heat exchangers, furnace parts.
Incoloy 800 vs Similar Grades
| Incoloy 800 | Inconel 718 | Incoloy 825 | Inconel 625 | |
|---|---|---|---|---|
| Key composition | Ni 30-35%, Cr 19-23%, Fe bal. | Ni 50-55%, Cr 17-21%, Nb 4.75-5.5%, Mo | Ni 38-46%, Cr 19.5-23.5%, Mo 2.5-3.5%, Cu | Ni ≥58%, Cr 20-23%, Mo 8-10%, Nb 3.15-4.15% |
| Hardness | ~75-85 HRB | Up to ~40-45 HRC aged | ~75-90 HRB | ~95 HRB-25 HRC |
| Tensile (MPa) | ~600 | ~1240-1400 aged | ~690 | ~830-930 |
| Machinability % | 20 | 10 | 20 | 12 |
| Typical use | Heat exchangers, furnace parts | Turbine discs, fasteners, oil & gas tools | Oil & gas, acid production, pickling | Marine, aerospace ducting, chemical |
More on CNC Turning Inconel
Finishing options, quality documentation and general cnc turning guidance for all inconel grades are on our CNC Turning Inconel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Turning Incoloy 800
Send a STEP/IGES model or PDF drawing, confirm Incoloy 800 and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
Incoloy 800 in Other Processes
Related
Send the drawing, the Incoloy 800 condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is CNC Turning Incoloy 800 and how is it done?
CNC Turning Incoloy 800 refers to cNC turning rotates the workpiece against a single-point tool to produce cylindrical features, threads and grooves. Applied to Incoloy 800 — high-temperature strength and oxidation resistance — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What surface finish is achievable on Incoloy 800 with CNC Turning?
Surface finish on Incoloy 800 is controlled to your specification; we confirm the achievable Ra against your callout.
What material thickness or size range suits CNC Turning Incoloy 800?
Turned Incoloy 800 parts are produced from bar or chuck stock across a wide diameter range.
Can VT machining make custom Incoloy 800 parts to my drawing?
Yes. Incoloy 800 turning is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
What tolerances can you hold for CNC Turning Incoloy 800?
Achievable tolerances for Incoloy 800 turning depend on the alloy, geometry and feature size. Turning holds diameter tolerances to around ±0.005 mm with concentricity within 0.01 mm. Exact figures are confirmed against your drawing callouts.