VT machining specialises in CNC Turning C268 Brass. Because C268 Brass is free-machining with good conductivity, and its machinability is excellent (free-machining); fast speeds, clean finish, we plan each job around the grade to protect accuracy and surface quality.
CNC Turning Capability for C268 Brass
- Free-machining
- Good conductivity
- Attractive finish
- Tolerance to ±0.01 mm
C268 Brass Material Data
| Density | 8.50 g/cm³ |
|---|---|
| Tensile strength | 340–470 MPa |
| Yield strength (0.2%) | 125–310 MPa |
| Hardness | 78–130 HB |
| Melting point | 885–900 °C |
| Thermal conductivity | 115 W/m·K |
| Thermal expansion | 20.5 ×10⁻⁶/K |
| Electrical conductivity | 26% |
| Machinability (C36000 = 100%) | 100% (the benchmark) |
| Grades we run | C36000 free-cutting, C37700 forging, C26000 cartridge, C46400 naval |
Published typical values for C36000. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Nothing much — this is the easiest metal in the shop. Worth asking about if a copper or bronze part is cost-driven rather than conductivity-driven.
Machining C268 Brass with CNC Turning
The machinability of C268 Brass is excellent (free-machining); fast speeds, clean finish. For CNC Turning we select tooling, feeds, speeds and coolant to match, keeping the C268 Brass workpiece stable and the result accurate.
Because we machine C268 Brass regularly, proven settings shorten setup and keep quality repeatable across reorders.
Achievable Tolerances for CNC Turning C268 Brass
| Feature | Standard | Precision |
|---|---|---|
| Outside diameter | ±0.05 mm | ±0.005 mm |
| Bore diameter | H9 | H6 |
| Length / shoulder position | ±0.10 mm | ±0.020 mm |
| Concentricity OD to ID | 0.05 mm TIR | 0.010 mm TIR |
| Roundness | 0.02 mm | 0.005 mm |
| Thread class | 6g / 2A | 4h / 3A |
| Surface finish, as turned | Ra 1.6 µm | Ra 0.4 µm |
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.
Design Tips for CNC Turning C268 Brass
A few design choices make a real difference to cost and quality. Consistent diameters, standard thread forms and avoiding extremely long, slender features help C268 Brass turned parts stay concentric and economical. If you send your model early, we will return practical DFM feedback before you commit to production.
Why C268 Brass?
Specifying C268 Brass for CNC Turning C268 Brass is usually about its properties: free-machining with good conductivity. Tell us the condition you need and we machine to it.
CNC Turning Quality & Inspection
Consistent quality comes from disciplined process control. Critical dimensions on C268 Brass 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.
Secondary Operations & Finishing
We complete C268 Brass 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.
CNC Turning Tolerances & Surface Finish
Turned C268 Brass holds diameter tolerances to about ±0.005 mm with concentricity within 0.01 mm and good roundness. Turned finishes of Ra 0.4–0.8 µm are achievable with finishing passes and sharp tooling.
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.
Applications of CNC Turning C268 Brass
CNC Turning of C268 Brass 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 Turning C268 Brass
Ordering C268 Brass 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 C268 Brass
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Nickel plate | 5–15 µm | Hard, bright, corrosion resistant |
| Chrome plate | 0.3–1 µm | Decorative, over nickel |
| Clear lacquer | 10–20 µm | Stops the natural tarnish |
| Tin plate | 3–15 µm | Solderable contacts |
| 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 Turning C268 Brass
- 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 C268 Brass 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.
C268 Brass in Other Processes
Related
Send the drawing, the C268 Brass condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What tolerances can you hold for CNC Turning C268 Brass?
Achievable tolerances for C268 Brass 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.
Why is C268 Brass a good choice for CNC Turning?
C268 Brass is free-machining with good conductivity, which makes it well suited to CNC Turning. We tune the process to the alloy so the finished C268 Brass turning part meets your dimensional and functional requirements.
What material thickness or size range suits CNC Turning C268 Brass?
Turned C268 Brass parts are produced from bar or chuck stock across a wide diameter range.
What is the typical lead time and minimum order for CNC Turning C268 Brass?
CNC Turning prototypes for C268 Brass can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Does CNC Turning C268 Brass require dedicated tooling?
Most C268 Brass turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What surface finish is achievable on C268 Brass with CNC Turning?
Surface finish on C268 Brass is controlled to your specification; we confirm the achievable Ra against your callout.