VT machining offers CNC Milling 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 Milling Notes for C122 Copper
We use high-efficiency toolpaths with constant engagement on C122 Copper to keep cutting temperature and tool wear under control.
For estimating, a 100 × 100 × 10 mm block of C122 Copper weighs about 0.89 kg.
Starting Parameters for CNC Milling C122 Copper
| Cutting speed (carbide) | 130-255 m/min |
|---|---|
| Feed per tooth | 0.028-0.088 mm |
| Spindle speed, Ø10 mm end mill | 4140-8120 rpm |
| Insert / tool class | ISO N — sharp, polished, uncoated or DLC |
| Coolant | Emulsion; very sharp polished tools to avoid smearing |
| Thermal growth, 100 mm part, +10 °C | 17 µm (CTE 17 µm/m·K) |
Starting values for C122 Copper, Annealed or H55; optimised on the first article.
C122 Copper Data Relevant to CNC Milling
| 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 Milling Copper
Finishing options, quality documentation and general cnc milling guidance for all copper grades are on our CNC Milling Copper page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Milling 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
What material thickness or size range suits CNC Milling C122 Copper?
We machine C122 Copper across a broad size range; share your part envelope for confirmation.
Does CNC Milling C122 Copper require dedicated tooling?
Most C122 Copper machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
Can VT machining make custom C122 Copper parts to my drawing?
Yes. C122 Copper 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 tolerances can you hold for CNC Milling C122 Copper?
Achievable tolerances for C122 Copper 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.
What is CNC Milling C122 Copper and how is it done?
CNC Milling C122 Copper refers to multi-axis milling cutters remove material to produce prismatic features, pockets, slots and contoured 3D surfaces. Applied to C122 Copper — excellent electrical and thermal conductivity — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Which industries use CNC Milling C122 Copper parts?
CNC Milling C122 Copper parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise C122 Copper components are required.