What is a C11000 copper pipe?
UNS C11000 Electrolytic Tough Pitch Copper (ETP Copper) is one of the most widely used high-conductivity copper alloys, known for its excellent electrical conductivity (≥100% IACS), thermal conductivity, ductility, and ease of fabrication. As a premium industrial-grade copper material, C11000 copper sheet, copper strip, copper rod, copper bar, copper tube, and copper busbar are extensively used in electrical engineering, transformers, switchgear, power distribution, grounding systems, and precision components. Our factory offers custom sizes, tight tolerances, international standards, and export packaging, ensuring stable quality for global B2B buyers.
UNS C11000 Copper Alloy – Full Integrated Technical Comparison Table
| Category | Technical Parameter | Metric (SI Units) | Imperial (US Units) | Notes / Standard |
|---|---|---|---|---|
| Chemical Composition | Cu (Copper) | ≥ 99.90% | - | ASTM B152 / B187 |
| Oxygen (O) | 0.02–0.04% | - | Typical ETP Cu | |
| Other impurities | ≤ 0.03% | - | - | |
| Mechanical Properties – Annealed (O Temper) | Tensile Strength | 210–250 MPa | 30–36 ksi | ASTM B152 |
| Yield Strength | 65–100 MPa | 9–14 ksi | - | |
| Elongation | 30–45% | - | - | |
| Mechanical Properties – Hard (H04 Temper) | Tensile Strength | 340–380 MPa | 49–55 ksi | ASTM B187 |
| Yield Strength | 300–340 MPa | 44–49 ksi | - | |
| Hardness | HV 80–110 | HRB 40–55 | - | |
| Physical Properties | Conductivity | ≥ 100% IACS | - | Electrolytic tough pitch |
| Density | 8.9 g/cm³ | 0.321 lb/in³ | - | |
| Melting Point | 1083°C | 1981°F | - | |
| Standard Size Range – Sheets / Plates (ASTM B152) | Thickness | 0.20–20 mm | 0.008"–0.79" | Std. tolerances ±0.01–0.20 mm |
| Width | 300–1000 mm | 12"–40" | - | |
| Length | 1000–3000 mm | 40"–120" | - | |
| Standard Size Range – Rods / Bars (ASTM B187) | Diameter | 3–120 mm | 1/8"–4.75" | Tolerance ±0.03–0.20 mm |
| Temper available | O / H02 / H04 | - | - | |
| Standard Size Range – Busbars (Flat Bars) | Thickness | 3–20 mm | 0.12"–0.75" | - |
| Width | 20–200 mm | 0.8"–8" | - | |
| Standard Size Range – Tubes (ASTM B68 / B75) | Outside Diameter (OD) | 6–108 mm | 1/4"–4.25" | - |
| Wall Thickness | 0.5–10 mm | 0.02"–0.40" | Std. tolerance ±0.02–0.15 mm | |
| Temper | O / H58 | - | Seamless copper tube | |
| Key Features | - | High conductivity, corrosion resistance, ductility | - | Electrical-grade copper alloy |
| Typical Applications | - | Busbars, transformers, switchgear, electrical contacts, plumbing | - | Industry standard |
C11000 vs C10200 vs C12200 Copper Alloys
| Category | C11000 (ETP Copper) | C10200 (OFHC Copper) | C12200 (DHP Copper) |
|---|---|---|---|
| Material Name | Electrolytic Tough Pitch Copper | Oxygen-Free High Conductivity Copper | Phosphorus-Deoxidized Copper |
| UNS Number | C11000 | C10200 | C12200 |
| Common Names | ETP Copper, Tough Pitch Copper | OFHC Copper, Oxygen-Free Copper | DHP Copper, Deoxidized Copper |
| Chemical Composition | Cu: ≥ 99.90% • O: 0.02–0.04% | Cu: ≥ 99.95% • O: ≤ 0.001% | Cu: ≥ 99.90% • P: 0.015–0.040% |
| Electrical Conductivity | 100% IACS | 101–102% IACS (最高) | 85–90% IACS |
| Thermal Conductivity | Excellent | Excellent (略优) | Very Good |
| Tensile Strength (O Temper) | 210–250 MPa | 200–240 MPa | 200–240 MPa |
| Tensile Strength (Hard) | 340–380 MPa | 330–370 MPa | 300–360 MPa |
| Yield Strength (O Temper) | 65–100 MPa | 60–95 MPa | 60–100 MPa |
| Elongation (O Temper) | 30–45% | 30–45% | 30–45% |
| Corrosion Resistance | Very Good | Very Good | Excellent (最适合管路) |
| Hydrogen Embrittlement Resistance | Poor (氧化物导致) | Excellent | Excellent |
| Weldability (Brazing / Welding) | Medium | Medium–Good | Excellent(无氢脆风险) |
| Formability | Excellent | Excellent | Excellent |
| Suitable for High-Vacuum Use | ❌ 否 | ✔ 最佳 | ✔ |
| Oxygen Content | 200–400 ppm | < 10 ppm | None (P removes O) |
| Phosphorus Content | - | - | 150–400 ppm |
| Best Strength Category | High Electrical Performance | Highest Purity Copper | Best Weldability Tubing |
| Primary Advantages | Standard electrical copper | Ultra-high purity & conductivity | Brazing & welding without embrittlement |
| Limitations | Can suffer hydrogen embrittlement | Higher cost | Lower conductivity |
| Typical Product Forms | Sheets, plates, rods, busbars, wires, tubes | High-purity rods, wires, vacuum components | Copper tubes (ACR/HVAC), plumbing pipes |
| Typical Applications | Busbars, electrical contacts, transformers | Semiconductors, vacuum devices, high-end electronics | HVAC tubing, heat exchangers, plumbing, engineering tubes |
| ASTM Standards | B152, B187, B68, B75 | B152, B187 | B111, B306, B280 |
| Cost Level | Standard (Medium) | Highest | Lowest among three |
Key Features of UNS C11000
Excellent heat conductivity
Outstanding ductility & formability
Easy to weld, braze, solder
Non-magnetic, high corrosion resistance
Superior surface finish
Ideal for electrical and thermal conduction systems
Products Applications
Electrical busbars & grounding bars
Transformer & switchgear components
Power distribution equipment
Electrical contacts & connectors
Electronic terminals & PCBs
Plumbing tubes & HVAC components
Heat exchangers and condensers
Precision stamped copper parts
why choose us
why choose our products
We are a leading manufacturer and exporter specializing in a comprehensive range of high-quality copper products, including copper tubes, copper plates/sheets, copper bars, copper rods, copper wires, and copper strips. Our advanced manufacturing facilities are equipped with state-of-the-art continuous casting lines, extrusion presses, cold rolling mills, and drawing machines to ensure precision and consistency. Rigorous quality control is integral to our process, conducted through spectrometers for material verification, tensile testers, eddy current testers, and hydrostatic pressure testers, guaranteeing that all our products meet international standards for performance and durability.
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