Nichrome Wire (100gm)
Product Code : SCL-PLE-11778
The StemAids Nichrome Wire (100g Spool) is a premium Nickel-Chromium alloy (NiCr) engineered for the empirical study of thermodynamics, electrical resistance, and Joule heating. Optimized for Secondary and University-level physics, this wire is the industry standard for constructing heating elements, rheostats, and for verifying Ohm’s Law. Manufactured to ISO 9001:2015 standards, it provides high-temperature oxidation resistance and a stable resistivity coefficient within institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material Composition |
Approx. 80% Nickel, 20% Chromium (NiCr 80/20) |
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Unit Weight |
100g Net per spool |
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Standard Gauges |
Available in common SWG (Standard Wire Gauge) sizes (e.g., 22, 24, 26, 28, 30) |
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Resistivity (ρ) |
High resistivity (≈1.10×10−6 Ω⋅m) |
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Melting Point |
Approximately 1400°C |
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Surface Finish |
Bright-annealed, clean, and non-oxidized |
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Packaging |
Precision-wound on a high-impact, heat-resistant polymer spool |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
7505.22.00 (Wire of nickel alloys) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Resistance Quantification: Enables the physical study of the relationship between wire geometry and resistance, allowing learners to apply the formula R=ρ(L/A) to determine the resistivity of Nichrome.
- Joule Heating Analysis: Facilitates the study of electrical energy conversion; supports the analysis of how heat produced (H=I2Rt) relates to current and time, often used in calorimeter experiments.
- Ohm’s Law Verification: Serves as a reliable non-reactive load for plotting I−V characteristics, helping students evaluate the difference between ohmic and non-ohmic behavior at elevated temperatures.
- Material Science Application: Provides a practical medium for students to create small-scale heating elements or cutting-wire tools for foam-modeling projects.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant). Each spool is shrink-wrapped with moisture-absorbing desiccant to prevent surface contaminants from affecting electrical performance during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a technical datasheet detailing Resistance per Meter for each available SWG.
- Chemical Stability: The high chromium content ensures the wire develops a protective layer of chromium oxide when heated, preventing further degradation in high-humidity laboratory climates.
Direct OEM Sourcing Advantages
Procuring StemAids Nichrome Wire directly ensures vertical manufacturing control:
- In-House Alloy Verification: Every batch is spectrographically tested to ensure the NiCr ratio is precise, guaranteeing consistent resistance values across all student workstations.
- Precision Diameter Drawing: Coils are drawn to strict SWG tolerances, ensuring that the cross-sectional area (A) is uniform for accurate resistivity calculations.
- Direct Factory Customization: Ability to order specific lengths or specialized "ribbon" (flat) configurations for advanced laboratory requirements.
- Manufacturing Control: Direct oversight of the annealing process ensures the wire is flexible enough for students to wrap around ceramic formers without snapping or kinking.
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