VT machining provides CNC Thread Grinding Incoloy 825 for customers who need accurate, repeatable Incoloy 825 components. The machinability of Incoloy 825 is very difficult; rigid setups, carbide/ceramic tooling, low speeds, so we set the operation up specifically for this grade.
CNC Thread Grinding Capability for Incoloy 825
- High-temperature strength
- Oxidation resistant
- Tolerance to ±0.01 mm
- Aerospace-grade
Incoloy 825 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 Incoloy 825 with CNC Thread Grinding
When grinding Incoloy 825, 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 Incoloy 825 mean predictable cycle times and stable, repeatable results.
Achievable Tolerances for CNC Thread Grinding Incoloy 825
| Feature | Standard | Precision |
|---|---|---|
| Size (OD, ID, thickness) | ±0.005 mm | ±0.002 mm |
| Flatness over 100 mm | 0.010 mm | 0.003 mm |
| Parallelism | 0.010 mm | 0.003 mm |
| Roundness | 0.005 mm | 0.002 mm |
| Squareness | 0.010 mm | 0.005 mm |
| Surface finish | Ra 0.4 µm | Ra 0.1 µm |
| Workpiece hardness | up to 62 HRC | up to 65 HRC |
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.
CNC Thread Grinding 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.
Why Incoloy 825?
Customers select Incoloy 825 for CNC Thread Grinding because it is high-temperature strength and oxidation resistance. We handle grade verification and any required heat treatment or finishing.
Design Tips for CNC Thread Grinding Incoloy 825
Small design adjustments often cut cost and lead time. Allowing adequate grind stock, specifying realistic flatness over the true datum, and relieving corners help us hit tight tolerances on Incoloy 825 efficiently. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Thread Grinding Tolerances & Surface Finish
Ground Incoloy 825 reaches single-micron tolerances on size, flatness and parallelism, with surface finishes down to Ra 0.1–0.4 µm — and a near-mirror finish on suitable alloys.
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.
Secondary Operations & Finishing
Most Incoloy 825 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.
Applications of CNC Thread Grinding Incoloy 825
Incoloy 825 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 Thread Grinding Incoloy 825
Starting your project takes one email. Send your CAD or 2D drawing, the Incoloy 825 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 Incoloy 825
| 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 Thread Grinding Incoloy 825
- 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 Incoloy 825 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.
Incoloy 825 in Other Processes
Related
Send the drawing, the Incoloy 825 condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is CNC Thread Grinding Incoloy 825 and how is it done?
CNC Thread Grinding Incoloy 825 refers to thread grinding produces precise, high-finish threads on hardened parts and lead screws. Applied to Incoloy 825 — high-temperature strength and oxidation resistance — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
How clean are the edges produced by CNC Thread Grinding on Incoloy 825?
Machined Incoloy 825 edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Why is Incoloy 825 a good choice for CNC Thread Grinding?
Incoloy 825 is high-temperature strength and oxidation resistance, which makes it well suited to CNC Thread Grinding. We tune the process to the alloy so the finished Incoloy 825 grinding part meets your dimensional and functional requirements.
Which industries use CNC Thread Grinding Incoloy 825 parts?
CNC Thread Grinding Incoloy 825 parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise Incoloy 825 components are required.