Copper Wire

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Copper Wire Price in Bangladesh

Copper Wire price in Bangladesh starts at ৳400 per roll, whether you need it for a physics lab experiment or a small electronics winding project. ASTZ stocks pure copper wire in 30 Gauge and 34 Gauge, both sold as 200gm rolls suited for coil winding, circuit work, and educational use.

Most buyers don’t realize gauge matters more than price when picking copper wire. A wire too thick won’t wind tightly enough for a coil; one too thin snaps under tension. Knowing which gauge fits your project saves you a wasted trip and a wasted roll.

What is Copper Wire?

Copper wire is a drawn copper conductor used across power transmission, electronics, and educational lab work. Its high conductivity and flexibility make it one of the most widely used materials in both industrial wiring and small-scale winding projects.

Enameled vs Bare Copper Wire — What’s the Difference

Enameled copper wire has a thin insulating coating (usually polyurethane or polyester) baked onto the surface, letting you wind tight coils without adjacent turns short-circuiting. Bare copper wire has no coating and conducts on contact — it’s used where insulation isn’t needed, like grounding straps. ASTZ’s rolls are enameled, making them ready for coil and transformer work straight out of the box.

Why Copper is the Preferred Material for Wiring & Winding

Copper conducts electricity better than almost any commonly available metal, resists corrosion reasonably well, and stays flexible enough to wind into tight coils without cracking. That combination is why it remains the default choice for transformers, motors, and lab experiments over six decades after aluminum wire was introduced as a cheaper alternative.

Copper Wire Gauges We Offer

Copper Wire 30 Gauge (0.25mm)

A finer wire suited to detailed winding work — think small coils, sensitive circuits, and applications where you need many turns in a compact space. Priced at ৳400 per 200gm roll.

Copper Wire 34 Gauge (0.31mm)

Slightly thicker than the 30 gauge option, offering a bit more current-carrying capacity while still fine enough for lab-scale winding. Also priced at ৳400 per 200gm roll.

Copper Wire Gauge Chart — Which Gauge Should You Choose?

Gauge Diameter Common Use Best For
30 Gauge 0.25mm Fine coil winding, sensitive circuits Detailed lab experiments, compact coils
34 Gauge 0.31mm General winding, relay coils Standard physics lab work, transformers

If your project needs more turns packed into a smaller space, the 30 gauge wire gives you that precision. For general-purpose winding where a bit more durability helps, the 34 gauge is the steadier pick.

Copper Wire Price in Bangladesh (Comparison Table)

Product Gauge Weight/Roll Price (BDT) Best For
Copper Wire 30 Gauge 30G / 0.25mm 200gm 400 Fine winding, compact coils
Copper Wire 34 Gauge 34G / 0.31mm 200gm 400 General lab & relay winding

Applications of Copper Wire

Physics Lab & Educational Experiments (Coils, Electromagnets, Circuits)

Students wind copper wire into coils to demonstrate electromagnetism, build simple circuits, and run resistance experiments — a staple in secondary and college-level physics practicals.

Transformers, Inductors & Relay Winding

Both gauges work well for winding small transformers and inductor coils, where consistent wire diameter directly affects the component’s electrical performance.

Electronics Circuitry & Prototyping

Hobbyists and electronics students use copper wire for breadboard connections, jumper wiring, and prototyping circuits before moving to a finished PCB design.

Electric Motor & Meter Coil Winding

Small motor rewinding and analog meter coil work both rely on wire that holds its shape under tight winding without breaking — something ASTZ’s enameled copper wire is built for.

Copper Wire for School & College Physics Labs

SSC/HSC Practical Requirements

Bangladesh’s SSC and HSC physics syllabus includes practicals involving electromagnetic induction and coil-based experiments, where copper wire is a required lab material.

Common Experiments Using Copper Wire (Electromagnet, Ohm’s Law, Induction)

Typical experiments include building a simple electromagnet, verifying Ohm’s Law with a wound resistance coil, and demonstrating electromagnetic induction with a hand-wound coil and magnet.

Why Choose ASTZBD for Copper Wire in Bangladesh

100% Pure Copper, High-Temperature Resistant

Our wire is made from pure copper with good toughness and tensile resistance, so it holds up to repeated winding and handling without snapping.

Consistent Roll Weight & Quality (200gm Rolls)

Every roll ships at a consistent 200gm, so you know exactly how much wire you’re getting before you order — no guessing on length or coverage.

Nationwide Delivery Across Bangladesh

We deliver to schools, colleges, and individual buyers across all divisions, whether you need a single roll or a bulk order for a lab.

How to Choose the Right Copper Wire Gauge

Fine Winding & High-Frequency Use (Higher Gauge Number)

Go with 30 gauge when your project needs many tight turns in limited space, like small transformer coils or sensitive experimental setups.

General Circuit & Lab Use (Lower Gauge Number)

The 34 gauge wire suits general lab work and standard circuit demonstrations where extreme precision isn’t the priority.

Bulk/Institutional Buying for Labs & Workshops

Schools and training centers ordering for multiple students at once should confirm gauge requirements against their practical syllabus before bulk-ordering, since mixing up gauges mid-batch complicates experiment consistency.

Copper Wire Price Range in Bangladesh 2026

  • 30 Gauge (200gm roll): ৳400
  • 34 Gauge (200gm roll): ৳400

Both gauges are priced identically, so your choice comes down entirely to which diameter your project or practical syllabus calls for.

Frequently Asked Questions – FAQ

What is the price of copper wire in Bangladesh?

Both 30 Gauge and 34 Gauge copper wire cost ৳400 per 200gm roll at ASTZBD.

What is the difference between 30 Gauge and 34 Gauge copper wire?

30 Gauge has a 0.25mm diameter suited for fine, compact winding, while 34 Gauge is slightly thicker at 0.31mm and better suited for general lab and relay winding work.

What are the uses of copper wire?

Copper wire is used in physics lab experiments, transformer and inductor winding, electronics prototyping, and electric motor or meter coil winding.

What is enameled copper wire, is it insulated?

Yes, enameled copper wire has a thin baked-on insulating coating, allowing tight coil winding without adjacent turns short-circuiting.

How long can one roll of copper wire be used / what is its length?

Each 200gm roll’s length varies by gauge, since thinner wire yields more length per gram than thicker wire — the roll is sold by weight rather than a fixed length.

What are the benefits of buying from ASTZBD?

Pure copper, high-temperature resistant wire in consistent 200gm rolls, with nationwide delivery across Bangladesh.