VT machining offers CNC Milling for C377 Brass (UNS C37700 / CuZn39Pb2 / Forging brass), typically supplied as forged. Best hot-forging brass; forged near-net then machined.
CNC Milling Notes for C377 Brass
C377 Brass mills well with conventional strategies; finishing passes are planned to meet flatness and finish callouts.
For estimating, a 100 × 100 × 10 mm block of C377 Brass weighs about 0.84 kg.
Starting Parameters for CNC Milling C377 Brass
| Cutting speed (carbide) | 225-455 m/min |
|---|---|
| Feed per tooth | 0.035-0.123 mm |
| Spindle speed, Ø10 mm end mill | 7160-14480 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 C377 Brass, As forged; optimised on the first article.
C377 Brass Data Relevant to CNC Milling
| Equivalent designations | UNS C37700 / CuZn39Pb2 / Forging brass |
|---|---|
| Key composition | Cu 58-61%, Pb 1.5-2.5%, Zn bal. |
| Typical supply condition | As forged |
| Hardness (typical) | ~78 HRB |
| Machinability rating | 80% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How C377 Brass Differs
Best hot-forging brass; forged near-net then machined.
Typical applications: Forged valves, fittings, hardware.
C377 Brass vs Similar Grades
| C377 Brass | C360 Brass | C268 Brass | C260 Brass | |
|---|---|---|---|---|
| Key composition | Cu 58-61%, Pb 1.5-2.5%, Zn bal. | Cu 60-63%, Pb 2.5-3%, Zn bal. | Cu 64-68.5%, Zn bal. | Cu 68.5-71.5%, Zn bal. |
| Hardness | ~78 HRB | ~78 HRB | ~55-80 HRB | ~55-80 HRB |
| Tensile (MPa) | ~360 | ~340-470 | ~320-500 | ~300-480 |
| Machinability % | 80 | 100 | 30 | 30 |
| Typical use | Forged valves, fittings, hardware | Fittings, valves, screw-machine parts | Stampings, lamp parts, hardware | Deep-drawn parts, ammunition cases, radiator parts |
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 C377 Brass
Send a STEP/IGES model or PDF drawing, confirm C377 Brass and its condition (we usually see it supplied as forged), the quantity, critical tolerances and any finish or certificate requirements.
C377 Brass in Other Processes
Related
Send the drawing, the C377 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 Milling C377 Brass?
Achievable tolerances for C377 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.
Why is C377 Brass a good choice for CNC Milling?
C377 Brass is free-machining with good conductivity, which makes it well suited to CNC Milling. We tune the process to the alloy so the finished C377 Brass machining part meets your dimensional and functional requirements.
What surface finish is achievable on C377 Brass with CNC Milling?
Surface finish on C377 Brass is controlled to your specification; we confirm the achievable Ra against your callout.
Does CNC Milling C377 Brass require dedicated tooling?
Most C377 Brass machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
Which industries use CNC Milling C377 Brass parts?
CNC Milling C377 Brass parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise C377 Brass components are required.
What is the typical lead time and minimum order for CNC Milling C377 Brass?
CNC Milling prototypes for C377 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.