VT machining offers CNC Milling for C268 Brass (UNS C26800 / CuZn33 / Yellow brass), typically supplied annealed or half-hard. Slightly cheaper, higher-zinc alternative to C260 for forming.
CNC Milling Notes for C268 Brass
We use high-efficiency toolpaths with constant engagement on C268 Brass to keep cutting temperature and tool wear under control.
For estimating, a 100 × 100 × 10 mm block of C268 Brass weighs about 0.85 kg.
Starting Parameters for CNC Milling C268 Brass
| Cutting speed (carbide) | 100-205 m/min |
|---|---|
| Feed per tooth | 0.035-0.123 mm |
| Spindle speed, Ø10 mm end mill | 3180-6530 rpm |
| Insert / tool class | ISO N — sharp, polished, uncoated or DLC |
| Coolant | Dry or light emulsion; zero-rake tools to prevent grabbing |
| Thermal growth, 100 mm part, +10 °C | 20.5 µm (CTE 20.5 µm/m·K) |
Starting values for C268 Brass, Annealed or half-hard; optimised on the first article.
C268 Brass Data Relevant to CNC Milling
| Equivalent designations | UNS C26800 / CuZn33 / Yellow brass |
|---|---|
| Key composition | Cu 64-68.5%, Zn bal. |
| Typical supply condition | Annealed or half-hard |
| Hardness (typical) | ~55-80 HRB |
| Machinability rating | 30% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How C268 Brass Differs
Slightly cheaper, higher-zinc alternative to C260 for forming.
Typical applications: Stampings, lamp parts, hardware.
C268 Brass vs Similar Grades
| C268 Brass | C260 Brass | C360 Brass | C377 Brass | |
|---|---|---|---|---|
| Key composition | Cu 64-68.5%, Zn bal. | Cu 68.5-71.5%, Zn bal. | Cu 60-63%, Pb 2.5-3%, Zn bal. | Cu 58-61%, Pb 1.5-2.5%, Zn bal. |
| Hardness | ~55-80 HRB | ~55-80 HRB | ~78 HRB | ~78 HRB |
| Tensile (MPa) | ~320-500 | ~300-480 | ~340-470 | ~360 |
| Machinability % | 30 | 30 | 100 | 80 |
| Typical use | Stampings, lamp parts, hardware | Deep-drawn parts, ammunition cases, radiator parts | Fittings, valves, screw-machine parts | Forged valves, fittings, hardware |
More on CNC Milling Brass
Finishing options, quality documentation and general cnc milling guidance for all brass grades are on our CNC Milling Brass page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Milling C268 Brass
Send a STEP/IGES model or PDF drawing, confirm C268 Brass and its condition (we usually see it supplied annealed or half-hard), the quantity, critical tolerances and any finish or certificate requirements.
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
Which industries use CNC Milling C268 Brass parts?
CNC Milling C268 Brass parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise C268 Brass components are required.
Does CNC Milling C268 Brass require dedicated tooling?
Most C268 Brass machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What tolerances can you hold for CNC Milling C268 Brass?
Achievable tolerances for C268 Brass 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.
Can VT machining make custom C268 Brass parts to my drawing?
Yes. C268 Brass 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 is the typical lead time and minimum order for CNC Milling C268 Brass?
CNC Milling 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.
What surface finish is achievable on C268 Brass with CNC Milling?
Surface finish on C268 Brass is controlled to your specification; we confirm the achievable Ra against your callout.