Manganin Wire (100gm)
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Product Code : SCL-OS-12260
Engineered for critical electrical stability, this Manganin resistance wire is the definitive OEM standard for the fabrication of precision shunt resistors and resistance standards. Optimized for University and Vocational physics laboratories, it features a near-zero Temperature Coefficient of Resistance (TCR) between 15°C and 35°C, ensuring laboratory measurements remain unaffected by ambient thermal fluctuations.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Material Grade |
Precision Manganin Alloy (Typical Cu84/Mn12/Ni4) |
|
Primary Advantage |
Ultra-Low Temperature Coefficient of Resistance (TCR) |
|
Temperature Coefficient |
±15 x 10??/K (within 15°C to 35°C range) |
|
Electrical Resistivity |
0.43 to 0.48 µΩ·m at 20°C |
|
Thermal EMF vs Copper |
(Minimizes parasitic voltage error) |
|
Melting Point |
Approx. 960°C to 1020°C |
|
Tensile Strength |
300–600 MPa (Annealed) |
|
ISO Compliance Code |
Manufactured to DIN 17 471 / ASTM B267 Standards |
|
HS Code |
7408.29 (Copper alloy wire; other) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
Feature: Near-Zero TCR Metallurgy Outcome: Allows students to verify Ohm’s Law without resistance drift interference, supporting Advanced Electromagnetism Module 201.
Feature: Negligible Thermal EMF Outcome: Facilitates high-precision DC bridge measurements (Wheatstone/Kelvin), enabling students to differentiate between conductor resistance and contact-potential errors.
Feature: High Long-Term Stability Outcome: Provides a reliable reference for student-led fabrication of fixed-value resistors and ammeter shunts, promoting applied engineering competence.
International Logistics & Compliance
StemAids ensures seamless integration into international procurement pipelines with a focus on material integrity:
Packaging: Export-grade seaworthy crating (ISPM-15 compliant); wire is precision-spooled on impact-resistant bobbins and vacuum-sealed to prevent surface oxidation during transit.
Documentation: Includes Manufacturer’s Authorization Form (MAF), Batch-Specific Certificate of Analysis (CoA), and Technical Data Sheets in English.
Durability: Tropicalized alloy properties; though designed for room-temperature stability, the material is tested for structural integrity in storage environments up to 45°C/90% Humidity.
Direct OEM Sourcing Advantages
By sourcing directly from StemAids, procurement officers secure vertically integrated quality assurance:
In-House Precision Calibration: Every batch is tested for resistivity consistency across the entire 100g spool length to ensure uniform performance.
Batch-Tested for Uniform Reliability: Rigorous metallurgical analysis confirms the specific Cu-Mn-Ni ratio required to maintain specialized TCR signatures.
Direct Factory Spares Availability: Continuous supply of various SWG/AWG gauges and bulk spools ensures long-term institutional compatibility and experimental reproducibility.
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