VT machining specialises in CNC EDM Drilling Hastelloy C276. Because Hastelloy C276 is high-temperature strength and oxidation resistance, and its machinability is very difficult; rigid setups, carbide/ceramic tooling, low speeds, we plan each job around the grade to protect accuracy and surface quality.
CNC EDM Drilling Capability for Hastelloy C276
- High-temperature strength
- Oxidation resistant
- Tolerance to ±0.01 mm
- Aerospace-grade
Hastelloy C276 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 C276 with CNC EDM Drilling
The machinability of Hastelloy C276 is very difficult; rigid setups, carbide/ceramic tooling, low speeds. For CNC EDM Drilling we select tooling, feeds, speeds and coolant to match, keeping the Hastelloy C276 workpiece stable and the result accurate.
Because we machine Hastelloy C276 regularly, proven settings shorten setup and keep quality repeatable across reorders.
Achievable Tolerances for CNC EDM Drilling Hastelloy C276
| 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
We complete Hastelloy C276 components with the secondary steps your drawing calls for. We arrange heat treatment, surface treatment, marking and assembly as needed. Tell us the final spec and we will plan the full route so parts arrive ready to use.
Design Tips for CNC EDM Drilling Hastelloy C276
A few design choices make a real difference to cost and quality. EDM suits sharp internal corners, thin ribs and hardened Hastelloy C276 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.
CNC EDM Drilling Tolerances & Surface Finish
EDM holds tolerances to roughly ±0.002–0.005 mm with no cutting force on the Hastelloy C276 part, producing fine, controlled surface textures and sharp internal corners impossible to mill.
The tightest tolerances are reserved for the features your drawing flags as critical. Share your tolerance scheme and we will confirm what is realistic before quoting.
Why Hastelloy C276?
Specifying Hastelloy C276 for CNC EDM Drilling Hastelloy C276 is usually about its properties: high-temperature strength and oxidation resistance. Tell us the condition you need and we machine to it.
CNC EDM Drilling Quality & Inspection
Consistent quality comes from disciplined process control. Critical dimensions on Hastelloy C276 parts are checked in-process and verified at final inspection using calibrated instruments and, where required, CMM measurement. Full documentation — dimensional reports, mill certs, FAIR — is available when your programme needs it.
Applications of CNC EDM Drilling Hastelloy C276
CNC EDM Drilling of Hastelloy C276 supports parts across aerospace, medical, automotive, electronics, semiconductor, energy and general industrial sectors. We scale from one-off prototypes to ongoing production while holding the same quality.
How to Order CNC EDM Drilling Hastelloy C276
Ordering Hastelloy C276 parts is straightforward. Provide the drawing, material, quantity and any certification needs. Our engineers reply — in English — with feasibility, pricing and a realistic lead time, usually within one business day.
Finishing Options for Hastelloy C276
| 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 EDM Drilling Hastelloy C276
- 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 C276 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 C276 in Other Processes
Related
Send the drawing, the Hastelloy C276 condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Can you EDM-machine hardened Hastelloy C276?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult Hastelloy C276 can be machined to fine detail and tight tolerance without distortion.
What is the typical lead time and minimum order for CNC EDM Drilling Hastelloy C276?
CNC EDM Drilling prototypes for Hastelloy C276 can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
How clean are the edges produced by CNC EDM Drilling on Hastelloy C276?
Machined Hastelloy C276 edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
What material thickness or size range suits CNC EDM Drilling Hastelloy C276?
We machine Hastelloy C276 across a broad size range; share your part envelope for confirmation.
Can VT machining make custom Hastelloy C276 parts to my drawing?
Yes. Hastelloy C276 Hastelloy C276 EDM 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 surface finish is achievable on Hastelloy C276 with CNC EDM Drilling?
Surface finish on Hastelloy C276 is controlled to your specification; we confirm the achievable Ra against your callout.