C11000 Copper Busbar & Copper Bar
Electrolytic tough pitch copper to ASTM B187 / EN 13601
C11000, also written Cu-ETP or T2, is 99.9 % pure electrolytic copper with a minimum conductivity of 100 % IACS. It is the reference material for busbar, switchgear, transformer windings and earthing, and it is chosen for conductivity rather than strength — which is why the temper matters. We supply soft, half-hard and hard busbar, square, rectangular and round, with radiused or rounded edges.
Equivalent grades
| ASTM B187 | C11000 ETP |
|---|---|
| EN 13601 | Cu-ETP / CW004A |
| JIS H3140 | C1100 |
| GB/T 5585 | T2 |
ASTM B187 · EN 13601
Chemical composition
| Cu | O | P | impurities |
|---|---|---|---|
| ≥ 99.90 | ≤ 0.040 | — | ≤ 0.10 total |
Values in % by mass. Limits are maxima unless a range is stated.
Mechanical properties
| Temper | Rm (MPa) | A min (%) | Conductivity |
|---|---|---|---|
| Soft (annealed) O60 | 220 – 260 | ≥ 30 | ≥ 100 % IACS |
| Half hard H02 | 250 – 320 | ≥ 15 | ≥ 97 % IACS |
| Hard H04 | 300 – 380 | ≥ 6 | ≥ 97 % IACS |
Typical values per ASTM B187, EN 13601. The composition and mechanical properties of your order are stated on the EN 10204 3.1 mill test certificate.
Dimensions
| Thickness / diameter (mm) | 3 – 20 |
|---|---|
| Width / size class | 20 – 200 |
| Length / face | 3 – 6 m straight length |
Edges rounded or full radius · tin plating on request · Sizes outside the ranges below are available on request — send the specification and quantity.
Typical applications
- Switchgear and panel busbar
- Transformer and motor windings
- Earthing and lightning protection
- Electroplating anodes and connectors
- Induction furnace and welding components
How to choose
Order & delivery
| Lead time | 15 – 30 days after deposit or L/C for mill-rolled material; stock sizes ship sooner. |
|---|---|
| Packing | Steel strapping, wooden pallets or crates, edge protection, custom shipping marks. |
| Payment | T/T with deposit, or L/C at sight. Terms are confirmed on the proforma invoice. |
| Minimum order | Normally one 20′ container per size; mixed sizes can be combined in one container. |
| Documents | Invoice, packing list, bill of lading, certificate of origin, EN 10204 3.1 mill test certificate. |
| Incoterms | FOB, CFR, CIF to your port. Third-party inspection (SGS, BV, Intertek) arranged on request. |
FAQ
What conductivity do you guarantee?
Can you supply cut lengths and punched holes?
Full range, finishes and packing: Copper Tube, Bar & Busbar →
