Brass Wire (100gm) Physics Lab
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Product Code : SCL-AM-12103
Brass Wire (100gm) Physics Lab (SKU SCL-AM-12103) is a 100 g spool of bare 65/35 copper-zinc brass wire, 0.45 mm in diameter (26 SWG), drawn to a uniform cross-section. It is used on sonometers and in elasticity, Young’s modulus and wire-property experiments in school, college and engineering physics labs. Science Lab Supplies supplies the spool from Ambala, India to schools, colleges, training institutes, tender contractors and distributors, alongside the apparatus the wire is fitted to.
Specifications
Every technical detail of the wire is listed in the table below. In short, it is 26 SWG (0.45 mm) 65/35 brass with a nominal tensile strength of 450–550 MPa, about 70–75 m long on a 100 g ABS spool, bare apart from a thin anti-tarnish layer and packed with a desiccant.
| Specification | Value |
|---|---|
| SKU | SCL-AM-12103 |
| Net wire mass | 100 g nominal |
| Alloy | 65/35 brass (copper-zinc) |
| Diameter | 0.45 mm nominal |
| Gauge | 26 SWG |
| Nominal tensile strength | 450–550 MPa |
| Approximate length | 70–75 m per 100 g spool |
| Cross-section | Precision drawn, uniform along the spool |
| Surface | Bare, uninsulated, with micro-thin anti-tarnish layer |
| Spool | High-impact ABS with two line-locking slots |
| Packing | Re-sealable zip-lock bag with moisture-absorbing desiccant |
| Data card | Physical properties, including linear mass data |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Brass Wire
The wire gives a known material and diameter for experiments where linear density, tension and elasticity decide the result. Its uniform cross-section keeps sonometer frequencies and extension readings consistent along a length, and it makes a handy stock item of physics lab equipment in India for replacing worn wires.
- Class 11 sonometer practicals: laws of vibrating strings, compared against a Tuning Fork Set.
- Class 11 and B.Sc.: Young’s modulus of brass by Searle’s method, loading the wire with the Laboratory Slotted Masses, 2.5 kg.
- Comparing brass with steel or copper wires in elasticity and breaking-stress studies, after checking the diameter with an Electronic Digital Vernier Caliper.
- Open electrical contact and resistance work where a bare brass conductor is needed.
Brass is non-magnetic, so it is plucked or bowed on a sonometer rather than driven by an electromagnet. Wear safety glasses when the wire is under high tension, avoid kinks, and store the spool in its bag with the desiccant.
Standard Scope of Supply
Each pack contains one 100 g spool of 26 SWG brass wire on an ABS reel with locking slots, a moisture-absorbing desiccant pack, a re-sealable zip-lock storage bag and a data card with the wire’s physical properties, including its linear mass. Cutters and apparatus are not included.
Packing, MOQ and Lead Time
Order a single spool for replacements or several for a full set of sonometers and Young’s modulus frames. Every quotation lists packing, delivery time and price for the chosen quantity, and you may ask for the brass wire price in India together with the apparatus.
Through its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Ethiopia, Tanzania, Uganda, the UAE, Saudi Arabia and Oman. Enquiries can be made through the contact page or the enquiry cart, and the lab tender page explains tender supply.
Frequently Asked Questions
What gauge is this brass wire?
It is 26 SWG, with a nominal diameter of 0.45 mm. The 65/35 brass has a nominal tensile strength of 450 to 550 MPa, and a 100 g spool holds roughly 70 to 75 m.
Why use brass rather than copper on a sonometer?
Brass has a higher tensile strength and elastic limit than copper, so it can take the tension needed for a clear note without stretching permanently during the practical.
Is the wire insulated?
No. The surface is bare metal with only a micro-thin anti-tarnish layer, so it suits mechanical experiments and open electrical contacts. Dry it after any contact with water.
Who supplies the Brass Wire (100gm) Physics Lab?
Science Lab Supplies supplies this wire from Ambala, India. Spools can be quoted on their own or added to an order for sonometers, Young’s modulus apparatus and other physics equipment.
Related Wires and Elasticity Apparatus
The wires and apparatus below belong to the same elasticity, rigidity and vibrating-string practicals as brass wire, either as alternative test materials or as the instruments that hold and load the wire, and any of them can share one quotation.
- SWG Steel Wire (100gm) — 100 g of steel wire for elasticity and extension experiments.
- DCC Copper Wire (100gm Spool) — double cotton covered copper wire for coils and electromagnets.
- SWG Manganin Wire (100g) — bare copper-manganese-nickel resistance wire on a spool.
- Sonometers — wooden sonometer, 110 x 10 x 8.5 cm, with three movable bridges.
- Young’s Modulus Apparatus (Searle’s Pattern) — two brass frames, spirit level and micrometer reading to 1/100 mm.
- Young’s Modulus Apparatus (Vernier Type) — 10 cm brass scale with vernier reading 0.1 mm.
- Rigidity Apparatus (Searle’s Pattern) — 30 cm test wire between two brass rods, with three test wires.
Browse the full Applied Mechanics range, the Elasticity and Surface Tension range for modulus apparatus, or all physics lab equipment.
Last updated: 9 October 2026
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