VT machining offers CNC Milling for Hastelloy C22 (UNS N06022 / 2.4602), typically supplied annealed. More Cr than C276 so it also handles oxidising media.
CNC Milling Notes for Hastelloy C22
We use high-efficiency toolpaths with constant engagement on Hastelloy C22 to keep cutting temperature and tool wear under control.
For estimating, a 100 × 100 × 10 mm block of Hastelloy C22 weighs about 0.87 kg.
Starting Parameters for CNC Milling Hastelloy C22
| Cutting speed (carbide) | 15-35 m/min |
|---|---|
| Feed per tooth | 0.018-0.053 mm |
| Spindle speed, Ø10 mm end mill | 480-1110 rpm |
| Insert / tool class | ISO S — sharp PVD-coated carbide |
| Coolant | High-pressure emulsion; ceramic inserts run dry for roughing |
| Thermal growth, 100 mm part, +10 °C | 12.4 µm (CTE 12.4 µm/m·K) |
Starting values for Hastelloy C22, Annealed; optimised on the first article.
Hastelloy C22 Data Relevant to CNC Milling
| Equivalent designations | UNS N06022 / 2.4602 |
|---|---|
| Key composition | Ni bal., Cr 20-22.5%, Mo 12.5-14.5%, W 2.5-3.5% |
| Typical supply condition | Annealed |
| Hardness (typical) | ~90 HRB |
| Machinability rating | 10% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How Hastelloy C22 Differs
More Cr than C276 so it also handles oxidising media.
Typical applications: Chemical reactors, flue-gas scrubbers.
Hastelloy C22 vs Similar Grades
| Hastelloy C22 | Incoloy 825 | Hastelloy C276 | Incoloy 800 | |
|---|---|---|---|---|
| Key composition | Ni bal., Cr 20-22.5%, Mo 12.5-14.5%, W 2.5-3.5% | Ni 38-46%, Cr 19.5-23.5%, Mo 2.5-3.5%, Cu | Ni bal., Mo 15-17%, Cr 14.5-16.5%, W 3-4.5% | Ni 30-35%, Cr 19-23%, Fe bal. |
| Hardness | ~90 HRB | ~75-90 HRB | ~90 HRB | ~75-85 HRB |
| Tensile (MPa) | ~790 | ~690 | ~790 | ~600 |
| Machinability % | 10 | 20 | 10 | 20 |
| Typical use | Chemical reactors, flue-gas scrubbers | Oil & gas, acid production, pickling | Chemical processing, pollution control | Heat exchangers, furnace parts |
More on CNC Milling Inconel
Finishing options, quality documentation and general cnc milling guidance for all inconel grades are on our CNC Milling Inconel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Milling Hastelloy C22
Send a STEP/IGES model or PDF drawing, confirm Hastelloy C22 and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
Hastelloy C22 in Other Processes
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Send the drawing, the Hastelloy C22 condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is CNC Milling Hastelloy C22 and how is it done?
CNC Milling Hastelloy C22 refers to multi-axis milling cutters remove material to produce prismatic features, pockets, slots and contoured 3D surfaces. Applied to Hastelloy C22 — 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 Hastelloy C22 with CNC Milling?
Surface finish on Hastelloy C22 is controlled to your specification; we confirm the achievable Ra against your callout.
Can VT machining make custom Hastelloy C22 parts to my drawing?
Yes. Hastelloy C22 machining 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 Milling Hastelloy C22?
Achievable tolerances for Hastelloy C22 machining depend on the alloy, geometry and feature size. Milling holds positional and dimensional tolerances to around ±0.01 mm, tighter with precision setups. Exact figures are confirmed against your drawing callouts.
Does CNC Milling Hastelloy C22 require dedicated tooling?
Most Hastelloy C22 machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.