ASTM B152 / B152M C11000 Copper Plate Supplier
ASC LLP supplies ASTM B152 C11000 plates and sheets – electrolytic tough pitch (ETP) copper with a minimum 99.90% copper content and 100% IACS electrical conductivity. We stock ASTM B152 / B152M C11000 copper plates in soft and hard tempers for bus bars, earthing, switchgear, heat exchangers and architectural work, supplied with mill test certificates and cut-to-size service.
What is ASTM B152 C11000 Copper?
ASTM B152 / B152M is the standard specification for copper sheet, strip, plate and rolled bar. It covers several unalloyed copper grades, of which C11000 (ETP copper, also called CDA 110 or “110 copper”) is by far the most widely used.
C11000 is commercially pure copper – not a copper alloy – with at least 99.90% copper (including silver) and a small, controlled oxygen content of about 0.02–0.04%. This gives it the highest electrical and thermal conductivity of any commercial engineering metal apart from silver, together with excellent formability, solderability and corrosion resistance. For brazing or welding in hydrogen-bearing atmospheres, oxygen-free C10100/C10200 or deoxidised C12200 is used instead (see the comparison below).
Key Features of ASTM B152 C11000 Plates
- 100% IACS electrical conductivity (typically about 101% IACS when annealed) – the standard for bus bars and electrical conductors.
- Very high thermal conductivity – about 390 W/m·K, ideal for heat sinks and heat exchangers.
- Excellent formability – can be bent, deep drawn, spun and stamped; work-hardens to H02/H04 tempers.
- Excellent soldering, good brazing – easy to join for electrical and plumbing assemblies.
- Good corrosion resistance – resists atmospheric, fresh-water and many industrial environments, forming a protective patina outdoors.
- Antimicrobial and 100% recyclable.
Fabrication, Joining & Hydrogen Embrittlement
- Soldering: excellent. Brazing: good in air or neutral atmospheres.
- Welding: fair with gas-shielded arc methods (TIG/MIG) and preheat; oxy-acetylene, spot and seam welding are not recommended.
- Hydrogen embrittlement: because ETP copper contains oxygen, heating it above about 370 °C in a hydrogen-containing (reducing) atmosphere can cause internal cracking. Use oxygen-free C10100/C10200 or phosphorus-deoxidised C12200 for hydrogen brazing or reducing-atmosphere service.
- Annealing: cold-worked C11000 can be softened by annealing; it recrystallises readily, so tempers from soft to hard can be produced to suit forming.
Schedule and Size Chart of C11000 Copper
| Plate Thickness (mm) | Width (mm) | Length (mm) |
| 1.0 – 3.0 | 1000 – 1250 | 2000 – 2500 |
| 3.1 – 6.0 | 1000 – 1500 | 2000 – 3000 |
| 6.1 – 10.0 | 1000 – 2000 | 2000 – 4000 |
| 10.1 – 20.0 | 1000 – 2500 | 2000 – 5000 |
| 20.1 – 50.0 | 1000 – 3000 | 2000 – 6000 |
Tempers & Mechanical Properties of C11000 Copper
| Temper (ASTM B601) | Description | Tensile Strength (ASTM B152) |
| M20 | Hot rolled (typical plate condition) | approx. 220 MPa (32 ksi) typical |
| O60 | Soft annealed | 205 – 260 MPa (30 – 38 ksi) |
| H00 | 1/8 hard | 220 – 275 MPa (32 – 40 ksi) |
| H01 | 1/4 hard | 235 – 290 MPa (34 – 42 ksi) |
| H02 | 1/2 hard | 255 – 315 MPa (37 – 46 ksi) |
| H04 | Hard | 295 – 360 MPa (43 – 52 ksi) |
Typical yield strength ranges from about 70 MPa (10 ksi) in the hot-rolled/annealed condition to about 310 MPa (45 ksi) in H04 temper; elongation falls from about 50% (soft) to about 12% (hard). Tensile ranges are ASTM B152 requirements for sheet and strip – confirm limits for heavy plate with your order.
Specifications of ASTM B152 C11000 Plates
| Specification | Details |
| Standard | ASTM B152 / B152M, ASME SB152 |
| Grade | C11000 (UNS C11000, CDA 110, ETP copper) |
| Material type | Commercially pure copper (not an alloy) |
| Copper content | 99.90% min (Cu + Ag) |
| Forms | Plate, sheet, strip, rolled bar, cut-to-size pieces |
| Tempers | M20 hot rolled, O60 soft, H00, H01, H02, H04 |
| Thickness | 1 mm – 50 mm (see size chart) |
| Finish | Mill / as-rolled, pickled, bright |
| Test certificate | EN 10204 3.1 mill test certificate |
Chemical Composition of C11000 Copper
| Element | Composition (%) |
| Copper + Silver (Cu + Ag) | 99.90 min |
| Oxygen (O) | approx. 0.02 – 0.04 (typical) |
| Other elements | Balance (impurities) |
C11000 is a “tough pitch” copper: the small oxygen content is deliberate and is what distinguishes it from oxygen-free grades.
Physical & Electrical Properties of C11000
| Property | Value (approx., 20 °C) |
| Electrical conductivity | 100% IACS min (≈ 101% IACS annealed) |
| Thermal conductivity | 390 W/m·K |
| Density | 8.89 – 8.94 g/cm³ |
| Melting range | 1065 – 1083 °C |
| Modulus of elasticity | 117 GPa |
| Coefficient of thermal expansion | 17.0 × 10⁻⁶ /°C (20 – 300 °C) |
C11000 Copper Equivalent Grades
| Standard | Designation |
| UNS / CDA | C11000 / Alloy 110 |
| EN | CW004A (Cu-ETP) |
| DIN | 2.0060 (E-Cu58) |
| BS | C101 |
| JIS | C1100 |
| ISO | Cu-ETP |
| Other ASTM product forms | B187 (bus bar, rod), B124 (forging rod), B370 (building sheet) |
C11000 vs C10100 vs C12200 Copper
| Property | C11000 (ETP) | C10100 (OFE) | C12200 (DHP) |
| Copper, min | 99.90% | 99.99% | 99.9% |
| Oxygen | approx. 0.02 – 0.04% | 0.0005% max | Deoxidised with phosphorus |
| Electrical conductivity | 100% IACS | 101% IACS | approx. 85% IACS |
| Hydrogen embrittlement | Susceptible | Resistant | Resistant |
| Relative cost | Lowest | Highest | Low |
| Typical use | Bus bars, earthing, switchgear, roofing | Electronics, vacuum and high-reliability conductors | Brazed/welded parts, plumbing, heat exchangers |
Choose C11000 for electrical conductors and general sheet work, C10100 where the highest purity or vacuum service is needed, and C12200 where the copper will be brazed or welded.
Applications of ASTM B152 C11000 Copper Plates
| Industry | Applications |
| Electrical & power | Bus bars, switchgear, transformer windings and connections, earthing / grounding plates, terminals |
| Electronics | Heat sinks, RF shielding, connectors |
| Thermal | Heat-exchanger plates, radiators, solar collectors |
| Architecture & construction | Roofing, cladding, flashing, gutters, decorative panels |
| Industrial | Gaskets, anodes, chemical-process equipment, printing rollers |
| Marine | Fittings and sheathing in fresh and seawater service |
Why Buy ASTM B152 C11000 Copper Plates from ASC LLP?
- Certified material: plates and sheets to ASTM B152 / B152M with EN 10204 3.1 mill test certificates.
- Ready stock in multiple tempers: hot-rolled, soft and hard C11000 in a range of thicknesses.
- Cut-to-size service: plates, strips and bus-bar blanks cut to your dimensions.
- Technical guidance: help choosing between C11000, C10100 and C12200 for your application.
- Export-ready: seaworthy packing and documentation for worldwide delivery.
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Frequently Asked Questions – ASTM B152 C11000 Plates
What is ASTM B152?
ASTM B152 / B152M is the standard specification for copper sheet, strip, plate and rolled bar. It covers unalloyed coppers such as C11000 (ETP), C10100, C10200 and C12200 and sets their composition, tempers, tensile properties and dimensional tolerances.
What is C11000 copper?
C11000 is electrolytic tough pitch (ETP) copper with at least 99.90% copper and about 0.02–0.04% oxygen. It is the most common copper for electrical use, with conductivity of 100% IACS or higher.
Is C11000 the same as 110 copper?
Yes. C11000 is the UNS number for CDA Alloy 110, often simply called “110 copper”. Its European equivalent is CW004A (Cu-ETP).
What is the difference between C11000 and C12200?
C11000 contains a little oxygen and has the highest conductivity (100% IACS), but can suffer hydrogen embrittlement when brazed or welded in reducing atmospheres. C12200 is deoxidised with phosphorus, so it brazes and welds well, but its conductivity is lower (about 85% IACS).
What is the electrical conductivity of C11000 copper?
C11000 has a minimum electrical conductivity of 100% IACS, typically about 101% IACS in the annealed condition.
Is C11000 copper an alloy?
No. Although it is sometimes listed with copper alloys, C11000 is commercially pure copper with at least 99.90% Cu.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM B152 C11000 copper plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global metals market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
