VT machining offers CNC Turning for C122 Copper (UNS C12200 / DHP / Cu-DHP), typically supplied annealed or H55. Phosphorus-deoxidised; brazes and welds well but lower conductivity (~85% IACS).
CNC Turning Notes for C122 Copper
On the lathe C122 Copper needs chip-breaker inserts and constant chip load to avoid long, stringy swarf.
For estimating, a 100 × 100 × 10 mm block of C122 Copper weighs about 0.89 kg.
Starting Parameters for CNC Turning C122 Copper
| Cutting speed (carbide) | 150-300 m/min |
|---|---|
| Feed | 0.08-0.25 mm/rev |
| Spindle speed, Ø25 mm bar | 1910-3820 rpm |
| Insert / tool class | ISO N — sharp, polished, uncoated or DLC |
| Coolant | Emulsion; very sharp polished tools to avoid smearing |
Starting values for C122 Copper, Annealed or H55; optimised on the first article.
C122 Copper Data Relevant to CNC Turning
| Equivalent designations | UNS C12200 / DHP / Cu-DHP |
|---|---|
| Key composition | Cu ≥99.9%, P 0.015-0.04% |
| Typical supply condition | Annealed or H55 |
| Hardness (typical) | ~40-90 HV |
| Machinability rating | 20% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How C122 Copper Differs
Phosphorus-deoxidised; brazes and welds well but lower conductivity (~85% IACS).
Typical applications: Plumbing tube, heat exchangers, brazed parts.
C122 Copper vs Similar Grades
| C122 Copper | C110 Copper | C102 Copper | C101 Copper | |
|---|---|---|---|---|
| Key composition | Cu ≥99.9%, P 0.015-0.04% | Cu ≥99.9%, O ~0.02-0.04% | Cu ≥99.95%, O ≤0.001% | Cu ≥99.99%, O ≤0.0005% |
| Hardness | ~40-90 HV | ~40-90 HV | ~40-90 HV | ~40-90 HV |
| Tensile (MPa) | ~220-290 | ~220-290 | ~220-290 | ~220-290 |
| Machinability % | 20 | 20 | 20 | 20 |
| Typical use | Plumbing tube, heat exchangers, brazed parts | Busbars, grounding, electrical contacts | Busbars, waveguides, electronic parts | Vacuum components, RF parts, superconductors |
More on CNC Turning Copper
Finishing options, quality documentation and general cnc turning guidance for all copper grades are on our CNC Turning Copper page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Turning C122 Copper
Send a STEP/IGES model or PDF drawing, confirm C122 Copper and its condition (we usually see it supplied annealed or H55), the quantity, critical tolerances and any finish or certificate requirements.
C122 Copper in Other Processes
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Send the drawing, the C122 Copper 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 Turning C122 Copper parts?
CNC Turning C122 Copper parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise C122 Copper components are required.
What material thickness or size range suits CNC Turning C122 Copper?
Turned C122 Copper parts are produced from bar or chuck stock across a wide diameter range.
Why is C122 Copper a good choice for CNC Turning?
C122 Copper is excellent electrical and thermal conductivity, which makes it well suited to CNC Turning. We tune the process to the alloy so the finished C122 Copper turning part meets your dimensional and functional requirements.
What surface finish is achievable on C122 Copper with CNC Turning?
Surface finish on C122 Copper is controlled to your specification; we confirm the achievable Ra against your callout.
What tolerances can you hold for CNC Turning C122 Copper?
Achievable tolerances for C122 Copper 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.
Can VT machining make custom C122 Copper parts to my drawing?
Yes. C122 Copper turning 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.