The chain is fine...but I ordered the wrong size. Nine links of the chain I ordered equals six of the size I wanted. My error...
How can I straighten out the springs? I can't use them coil uo as is.
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When your project demands reliable electrical conductivity and corrosion resistance in a flat metal stock, standard alloy sheets simply fall short. Makers, electricians, model builders, and workshop fabricators who need a dependable copper sheet plate that can be cut, shaped, and soldered without compromise will find this T2 pure copper sheet plate the right choice for the job.
Each piece is made from T2 grade copper at 99.9% purity, available in thicknesses of 4mm, 5mm, 6mm, 8mm, and 10mm. Width and length dimensions range from 50mm × 100mm (approximately 2" × 4") up to 500mm × 500mm (approximately 19.7" × 19.7"), giving you flexibility to select the exact size your project requires without unnecessary waste.
Typical applications include custom electrical bus bars and grounding straps, RF shielding panels for electronics enclosures, scale model structural components, heat sink fabrication for DIY thermal management, and decorative metalwork where a warm copper finish is desired.
| Material | T2 Pure Copper (Cu ≥99.9%) |
|---|---|
| Grade | T2 |
| Thickness Range | 4mm / 5mm / 6mm / 8mm / 10mm |
| Width × Length Range | 50×100mm up to 500×500mm (see variant options) |
| Surface Finish | Mill-rolled, smooth |
| Electrical Conductivity | ≥58 MS/m (typical for T2 grade) |
| Thermal Conductivity | Typically 385–400 W/(m·K) |
| Hardness | Typically 40–65 HB (annealed to half-hard) |
| Quantity per Order | 1 piece |
| Weight | See variant options |
For light electrical grounding straps or decorative work, 4mm–5mm is typically sufficient. For structural bus bars, heat sinks, or load-bearing brackets, 6mm–10mm provides greater rigidity. If you are unsure, consider the bending and load requirements of your application and choose the next thickness up for a safety margin.
T2 pure copper has a tensile strength of approximately 200–250 MPa in the annealed state. It is suitable for light structural brackets, bus bar supports, and model frames, but is not recommended as a primary load-bearing structural element in heavy engineering applications. For high-strength requirements, consider copper alloys such as brass or bronze instead.
Copper does not rust. Over time it develops a natural oxide layer (patina) that ranges from brown to green depending on environmental exposure. This patina is protective and actually slows further oxidation. For applications requiring a bright copper appearance, the surface can be polished and sealed with a clear lacquer.
Yes. T2 copper's high purity makes it one of the most solderable metals available. It accepts standard tin-lead, lead-free, and silver solder alloys with appropriate flux. For brazing, use a silver-copper brazing alloy with a suitable flux and a propane or MAPP gas torch for thinner sections, or an oxy-acetylene setup for thicker plates.
T2 copper can be CNC milled and drilled using carbide tooling with appropriate feeds and speeds — copper's ductility means it tends to gum up high-speed steel tools. Laser cutting copper is challenging due to its high reflectivity; fiber lasers with sufficient power (typically ≥1kW) can cut thinner sheets, but thicker plates (8mm–10mm) are better suited to waterjet or plasma cutting.
Select the smallest standard size that fully contains your required shape to minimize waste. For example, if your finished part is 90mm × 140mm, order the 100mm × 150mm variant. You can then cut to final dimensions using an angle grinder with a metal cutting disc, a jigsaw with a bi-metal blade, or a bandsaw.
Copper has a density of approximately 8.96 g/cm³. Weight = Thickness (cm) × Width (cm) × Length (cm) × 8.96. For example, a 4mm × 100mm × 100mm plate weighs approximately 4mm × 10cm × 10cm × 8.96 g/cm³ ÷ 10 ≈ 358g. Actual weights may vary slightly due to surface finish and manufacturing tolerances.