CW004A & CW024A Copper Sheet
At S&D Non-Ferrous, we carry possibly the largest range of copper plates and sheets in the UK without ever compromising on the quality of our stock. We hold copper plates in grades CW004A and CW024A, both of which have varying benefits for different applications with this material commonly used in industrial and electrical applications. As part of our specialist copper sheet supply, we provide free cutting, coating, custom lengths and fast turnaround. Please contact our team to find out more about our supplier services.
Copper Sheet Forms Stocked by S&D Non Ferrous
CW004A
CW004A is a 99.9% pure copper metal that is known for its extremely high electrical and thermal conductivity. In addition to this, the visually pleasing copper also has great corrosion resistance, so it is highly versatile and therefore fitting for a diverse range of industries and applications such as electrical components, building works and arts and crafts.
Also referred to as C101, this high-purity alloy has good machinability properties which allow for ease of fabrication and forming. Annealing can be achieved after heating the alloy to temperatures between 370°C and 650°C and then rapidly cooling. When in the annealed condition, CW004A can be easily bent into shape as it is readily cold-worked. With its excellent ductility properties, this alloy can be readily hot-worked and has excellent weldability. It has a good rating for brazing and butt welding and a fair rating for gas-shielded arc welding. However, other welding methods are not recommended for CW004A. Our supply also conforms to international standards such as EN 13601.
We currently hold CW004A plate from 3mm-150mm thick and can custom lengths to fit your project.
CW024A
Grade CW024A copper sheet metal is a phosphorous de-oxidised metal that holds particularly well for brazing and welding. CW024A is commonly preferred for non-electrical uses such as roofing sheets and plumbing tubes as the levels of conductivity are not as high as CW004A.
CW024A, sometimes referred to as C106, responds excellently to cold working. Hot working temperatures should be between 760°C and 870°C for best results. After heating to temperatures between 370°C and 650°C annealing can be done by cooling CW024A rapidly. This alloy has excellent brazing and soldering properties and has a good rating for Oxyacetylene welding and butt welding. However, seam welding, spot welding and coated metal arc welding should all be avoided. During welding, embrittlement resistance is improved when C106/CW024A is deoxidised.
Our grade CW024A copper plates are the thinner of the two grades, with sheets ranging from 0.7mm to 6mm in thickness which we can tailor cut to the required length for your needs.
For advice on our unmatched copper plates or any of our products, contact a member of the S&D team today on 0121 525 5500.
Copper Sheet FAQs
C101 and C106 are both commercially pure copper grades commonly used in various applications. C101 is also known as CW004A and C106 is sometimes referred to as CW024A While they share many similarities, there are some key differences to consider. When it comes to the composition of these types of copper, C101 contains 99.9% pure copper with minimal oxygen and phosphorus content. This gives the grade excellent electrical conductivity but lower weldability when compared to C106. The trace amounts of phosphorus contained in C106 act as a deoxidizer making this grade easier to braze and weld compared to C101. Both grades offer good machinability, with C101 having a slight edge due to its higher purity.
The high conductivity of C106 or CW004A copper plate and sheet makes it perfect for the following specific applications:
- Electrical: Bus bars, switchgear, transformers, heat sinks, grounding straps, cables (although not power lines), printed circuit boards.
- Building & Construction: Roofing, flashings, gutters, cladding, architectural features, lightning protection systems.
- Heat Transfer: Heat exchangers, condensers, evaporators, heat pipes.
- Renewable Energy: Solar panels, wind turbine components.
- Other: Medical equipment, scientific instruments, jewellery, decorative arts
C101 or CW024A offers good weldability making it a suitable choice for the following specific applications:
- Plumbing: Pipes, tubes, fittings, water heaters, boilers.
- Roofing & Flashings: Standing seam roofing, gutters, downspouts, flashing for chimneys and skylights.
- HVAC & Refrigeration: Condenser coils, evaporator coils, piping systems.
- Decorative: Architectural features, roof ornaments, sculptures, art installations.
- Other: Chemical processing equipment, marine applications, heat exchangers.
