C110 Copper (UNS C11000) is a moderate-to-machine material that we run regularly for export customers. It has a density of 8.94 g/cm3, a tensile strength of 220 MPa and a typical hardness of HB 45. Those numbers make it the right choice for busbars and heat sinks, and a poor choice when cost or corrosion resistance matters more than mechanical performance.
On our machines we hold +/-0.02 mm on turned and milled features and reach Ra 0.8 um where the drawing calls for it. Standard lead time for C110 Copper parts is 3-7 working days, including material procurement, machining and any finishing operation you specify.
C110 Copper: key properties
| Property | Value |
|---|---|
| UNS / designation | C11000 |
| Density | 8.94 g/cm3 |
| Tensile strength | 220 MPa |
| Hardness | HB 45 |
| Machinability | Moderate |
| Suggested cutting speed (carbide) | 150-250 m/min |
| Relative material cost | 4 of 5 |
Machining C110 Copper: what to plan for
- Gummy and sticky chips
- Very high thermal expansion
- Tarnishes fast
Cutting speed for C110 Copper with carbide tooling sits around 150-250 m/min. Going faster burns the edge; going much slower causes rubbing and a poor surface. Air blast or flood coolant both work, but chip evacuation must be positive. If your part has thin walls or a lot of stock to remove, say so in the RFQ — we plan roughing, stress relief and finishing as separate operations when the geometry demands it.
Parts we machine in C110 Copper
- Busbars
- Heat sinks
- RF cavities
- Electrodes
Most C110 Copper work arrives as 2D drawings with a mix of critical and non-critical features. Loosening tolerance on the non-critical ones is the fastest way to cut cost, and we will tell you which features those are before we quote.
Tolerances, finish and lead time
| Item | Capability |
|---|---|
| General tolerance | +/-0.02 mm |
| Achievable surface finish | Ra 0.8 um |
| Minimum wall thickness | 0.8 mm (aluminium) / 1.0 mm (steel and stainless) |
| Typical lead time | 3-7 working days |
| Prototype quantity | 1 piece |
| Production quantity | 10 to 50,000 pieces |
Frequently asked questions
What is the lead time for C110 Copper parts?
Standard is 3-7 working days from drawing release, assuming the material is in stock. Exotic grades and cast forms can add 5 to 10 days. Finishing such as anodizing or plating adds 3 to 5 days.
What tolerance can you hold in C110 Copper?
+/-0.02 mm is routine on turned and milled features. Tighter than that is possible on specific features by grinding or lapping, but it is quoted separately because it changes the process.
Do you keep C110 Copper in stock?
We hold common sizes of C110 Copper and buy mill-certified stock for everything else. Material certificates are supplied with the parts on request.
Can you supply C110 Copper parts with a certificate of conformity?
Yes. We issue a dimensional report, a material certificate and a certificate of conformity as standard for production orders, and full PPAP or AS9102 paperwork when the programme requires it.
Related pages
- Materials — the full index for this section.
- Beryllium Copper CNC Machining: Safety and Tolerances
- POM / Delrin CNC Machining: Plastic Gear and Bushing Parts
- C360 Brass CNC Machining: Free-Cutting Brass Parts
- PEEK CNC Machining for Semiconductor and Medical Parts
- Instant CNC quote
- Tolerance quick reference
- Frequently asked questions
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