Need reliable CNC Sinker EDM Hastelloy C22? VT machining machines Hastelloy C22 to tight tolerances and consistent quality. As a material, Hastelloy C22 is high-temperature strength and oxidation resistance; we adapt feeds, speeds and tooling to suit.
CNC Sinker EDM Capability for Hastelloy C22
- High-temperature strength
- Oxidation resistant
- Tolerance to ±0.01 mm
- Aerospace-grade
Hastelloy C22 Material Data
| Density | 8.19 g/cm³ |
|---|---|
| Tensile strength | 1375 MPa |
| Yield strength (0.2%) | 1100 MPa |
| Hardness | 36–44 HRC |
| Melting point | 1260–1336 °C |
| Thermal conductivity | 11.4 W/m·K |
| Thermal expansion | 13.0 ×10⁻⁶/K |
| Electrical conductivity | 1.4% |
| Machinability (C36000 = 100%) | 12–15% |
| Grades we run | 600, 625, 718, X-750, 725 |
Published typical values for Inconel 718 (aged). Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Tool life is measured in minutes, not hours. Ceramic or coated-carbide tooling, low surface speed, high pressure coolant, and a scheduled tool change rather than waiting for failure.
Machining Hastelloy C22 with CNC Sinker EDM
When EDM machining Hastelloy C22, machinability is very difficult; rigid setups, carbide/ceramic tooling, low speeds. Our process plan reflects this so the finished part holds its tolerances without distortion or poor finish.
Documented parameters for Hastelloy C22 mean predictable cycle times and stable, repeatable results.
Achievable Tolerances for CNC Sinker EDM Hastelloy C22
| Feature | Standard | Precision |
|---|---|---|
| Profile dimension | ±0.010 mm | ±0.002 mm |
| Internal corner radius | 0.15 mm | 0.05 mm |
| Taper control over 50 mm | 0.02 mm | 0.005 mm |
| Surface finish (skim passes) | Ra 0.8 µm | Ra 0.2 µm |
| Recast layer | 10 µm | 2 µm (fine skim) |
| Start-hole diameter | 1.0 mm | 0.25 mm |
| Workpiece hardness | no limit (conductive) | no limit (conductive) |
Standard is what a normal quotation assumes. Precision is available on nominated features and is priced separately, because it needs extra setups, in-process gauging and CMM verification. Call out only the features that need it — blanket-tightening a drawing is the single most common reason a quote comes back expensive.
Secondary Operations & Finishing
Most Hastelloy C22 parts need some finishing, which we manage in-house or through vetted partners. Options include deburring and edge-breaking, heat treatment, surface grinding, polishing, and plating or anodising for corrosion resistance and appearance. Give us the finished-part requirement and we will sequence every operation correctly.
Design Tips for CNC Sinker EDM Hastelloy C22
Small design adjustments often cut cost and lead time. EDM suits sharp internal corners, thin ribs and hardened Hastelloy C22 that cannot be milled; allowing a small corner radius where possible speeds the cut. If you send your model early, we will return practical DFM feedback before you commit to production.
Why Hastelloy C22?
Customers select Hastelloy C22 for CNC Sinker EDM because it is high-temperature strength and oxidation resistance. We handle grade verification and any required heat treatment or finishing.
CNC Sinker EDM Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the Hastelloy C22 part, producing fine, controlled surface textures and sharp internal corners impossible to mill.
Exact achievable figures depend on the alloy, the feature size and the part geometry. Tell us which dimensions are critical and we will advise feasibility up front.
CNC Sinker EDM Quality & Inspection
Quality is built in, not inspected on. We monitor key features during the run and confirm them at final inspection, with CMM verification available for tight tolerances. We provide the inspection and traceability records your quality system requires.
Applications of CNC Sinker EDM Hastelloy C22
Hastelloy C22 parts made this way are found throughout aerospace, medical, automotive, electronics and industrial equipment. Prototype, bridge and production volumes are all welcome.
How to Order CNC Sinker EDM Hastelloy C22
Starting your project takes one email. Send your CAD or 2D drawing, the Hastelloy C22 grade and condition, the quantity and any finish or inspection requirements. We respond quickly with price, lead time and any DFM notes, in clear English.
Finishing Options for Hastelloy C22
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Deburr / edge break | 0.05–0.3 mm | All parts unless the drawing says otherwise |
| Bead blast | Ra 1.6–3.2 µm | Uniform matt finish, hides tool marks |
| Laser marking | — | Part number, lot code, data matrix |
No drawing yet? Build one in the browser.
Set the metal, dimensions and features, watch the 3D model update as you type, then switch to the 2D sheet to add dimensions and tolerances. Download it or send it straight to us with your RFQ.
What We Need to Quote CNC Sinker EDM Hastelloy C22
- GeometrySTEP or IGES for the 3D model, plus a PDF drawing if you have tolerance callouts. A dimensioned sketch is enough to start.
- MaterialThe exact Hastelloy C22 grade and condition — temper, heat-treat state or hardness. If you are not sure, tell us the function and we will suggest one.
- QuantityPrototype count and the expected annual volume. Both change how the part is made and therefore what it costs.
- TolerancesWhich features are critical. Everything else runs to our standard tolerance, which is what keeps the price sensible.
- FinishSurface treatment, cosmetic requirements, and any faces that must be masked.
- DocumentsWhether you need a material certificate, dimensional report, FAIR or PPAP with the shipment.
Missing something from the list is not a problem — send what you have. We will come back with the specific questions rather than a generic form.
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
Does CNC Sinker EDM Hastelloy C22 require dedicated tooling?
Wire EDM needs no shaped tooling; sinker EDM uses a shaped electrode we produce in-house for your cavity.
How clean are the edges produced by CNC Sinker EDM on Hastelloy C22?
Machined Hastelloy C22 edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Which industries use CNC Sinker EDM Hastelloy C22 parts?
CNC Sinker EDM Hastelloy C22 parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Hastelloy C22 components are required.
What is CNC Sinker EDM Hastelloy C22 and how is it done?
CNC Sinker EDM Hastelloy C22 refers to sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features. 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.