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Whether you're a hobbyist struggling to find consistent copper stock in the right dimensions, or a tradesperson who needs reliable flat bar for busbars, grounding straps, or custom fabrication — sourcing T2 copper flat bar in precise widths and thicknesses can be frustrating. This listing offers solid T2 copper flat bar, sheet plate, and strip stock cut to 500mm lengths, available in widths from 5mm to 50mm (~0.2" to ~2") and thicknesses from 0.5mm to 30mm (~0.02" to ~1.18"), so you get exactly the profile you need without over-ordering.
Each piece is machined from T2 (C101 equivalent) electrolytic tough-pitch copper — a commercially pure copper grade with ≥99.9% Cu content. The flat bar profile features a rectangular cross-section with smooth, mill-finished surfaces. All pieces are 500mm (approximately 19.7") in length, with width and thickness selected via the variant options above.
These copper flat bars are well-suited for electrical busbar fabrication and grounding conductor runs, where low resistivity is critical. Craft and jewellery makers use narrower strips (5–15mm wide) as bezels, inlays, or decorative banding. Wider, thicker sections (30–50mm wide, 3mm+ thick) serve as structural stock for custom brackets, heat sinks, and RF shielding panels in electronics enclosures.
| Material | T2 Electrolytic Tough-Pitch Copper (≥99.9% Cu) |
|---|---|
| Length | 500mm (~19.7 in) |
| Width | See variant options (5mm – 50mm) |
| Thickness | See variant options (0.5mm – 30mm) |
| Surface Finish | Mill finish |
| Electrical Conductivity | ~58 MS/m (IACS ≥99%) |
| Hardness | Typically soft/annealed (HV 40–65, depending on thickness) |
| Colour | Bright copper / reddish-orange |
| Weight | See variant options |
| Packing | 1 piece per pack |
For busbars, the cross-sectional area (width × thickness in mm²) determines current-carrying capacity. A common rule of thumb for T2 copper is approximately 1–2 A per mm² for continuous duty in open air. For example, a 20mm × 3mm bar (60 mm²) can typically handle 60–120 A depending on ventilation and ambient temperature. Select your width and thickness combination from the variant options to match your required ampacity.
T2 is the Chinese national standard designation (GB/T 5585) for electrolytic tough-pitch copper, which is functionally equivalent to C101 (BS EN) and ETP (ASTM C11000). All three specify ≥99.9% copper purity with similar electrical and mechanical properties, so T2 flat bar is a direct substitute in most electrical and fabrication applications.
Yes. T2 copper in the soft/annealed condition is highly ductile and can be cold-bent to a minimum bend radius of approximately 1× the thickness for thinner stock (≤3mm). Thicker sections (10mm+) may require a larger bend radius or intermediate annealing. Avoid sharp-corner bends on fully work-hardened pieces without annealing first.
Copper naturally forms a cupric oxide layer (darkening to brown, then eventually green patina) when exposed to air and moisture. This patina is protective and slows further corrosion. For sheltered outdoor or indoor electrical installations, no additional coating is typically needed. For exposed architectural use, a clear lacquer or wax can preserve the bright copper appearance.
Yes. T2 copper solders readily with 60/40 or lead-free tin-silver solders using standard flux. For higher-strength joints, silver brazing alloys (e.g. 45% Ag) work well with a propane or oxy-acetylene torch. Ensure the surface is clean and flux-coated before heating to achieve a sound, low-resistance joint.
Copper cuts cleanly with a fine-tooth hacksaw (32 TPI), metal-cutting bandsaw, or angle grinder with a thin cutting disc. For thinner strips (≤2mm), bench shears or aviation snips work well. Lubricate the blade with cutting oil to extend tool life and achieve a cleaner edge. Deburr cut edges with a file or deburring tool before handling.
All pieces in this listing are 500mm long. Width options range from 5mm to 50mm (11 sizes) and thickness options range from 0.5mm to 30mm (19 sizes) — select your combination from the variant dropdowns above. For lengths other than 500mm or quantities beyond standard packing, please use the Contact Us page to discuss custom requirements.
