Pure Copper Wire 0.7mm 0.8mm 0.9mm 1mm Round Solid Bare Wire Multi-Size Craft

Standard-temper wire is work-hardened and holds a formed shape with more spring-back resistance — useful for structural elements like ring shanks or stiff armature frames. Soft-temper wire has been annealed to remove internal stress, so it bends with very little resistance and is easier to coil tightly, weave, or wrap around stones without cracking. If you plan to do repetitive bending or tight wrapping, choose soft temper for the same diameter.

For wrapping frames and structural elements, 1.0 mm – 1.5 mm (soft temper) is a common starting point. For binding wraps and decorative coils, 0.7 mm – 0.9 mm gives enough flexibility to wrap tightly without leaving gaps. Larger stones or heavier pendants may benefit from a 1.6 mm – 2.0 mm frame wire for added rigidity.

This wire is appropriate for low-voltage hobby electronics, prototyping, grounding jumpers, and science project circuits. It is not insulated and is not rated or certified for mains (household) wiring. For any application involving line voltage, use wire that carries the appropriate safety certification for your region.

Bare copper will oxidize when exposed to air and moisture, developing a darkened patina over time. For jewelry applications, this can be intentional (a natural aged look) or managed by sealing finished pieces with a clear lacquer or wax. For electrical connections, ensure the joint is properly soldered or mechanically secured to minimize exposed surface area. Storing unused wire in a sealed bag slows tarnishing significantly.

Yes. Because the surface is bare copper with no coating to burn off, it accepts solder readily with standard rosin-core or lead-free solder and a clean iron tip. Flux is recommended for a clean joint, especially if the wire has any surface oxidation. Lightly sand or use fine steel wool to brighten the surface before soldering if the wire has been stored for a while.

For a single small jewelry piece (a pendant or a pair of earrings), 1 m is typically sufficient for 0.7 mm – 1.0 mm wire. For a bracelet or a project with multiple wrapped elements, 2 m gives comfortable working length with some margin. The 3 m option suits larger sculptural pieces, batch production of several items, or electronics projects where you need multiple cut lengths from a single continuous run.

Solid wire is a single continuous conductor with a uniform circular cross-section. It holds a bent shape well and is easier to thread through small bead holes or wrap evenly. Stranded wire is made of many thin filaments twisted together, making it more flexible and fatigue-resistant under repeated flexing, but harder to form into precise shapes. For jewelry making, sculpture, and most craft applications, solid wire is the standard choice.