6J12 High-Accuracy Manganin Alloy
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  • DANYANG HAIWEI ELECTRIC HEATING ALLOY CO., LTD.

6J12 High-Accuracy Manganin Alloy

6J12 high-accuracy manganin alloy contains only a small amount of nickel, which is primarily used to improve the alloy's corrosion resistance and, in conjunction with manganese, fine-tune the temperature coefficient of resistance, minimizing its fluctuations near room temperature. As a transfer standard for metrology departments, 6J12 is manufactured into sealed, oil-immersed resistors, utilizing its extremely low TCR and aging stability as a resistance reference. In power electronics measurements, 6J12 is used to manufacture shunts for measuring large currents. Due to its extremely low thermoelectric potential against copper, it effectively eliminates interference from terminal temperature differences caused by heating from large currents. In pressure sensors and weighing systems requiring long-term accuracy, the low drift characteristics of 6J12 ensure that the sensors do not require frequent calibration across different seasons and room temperatures.

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Grade CONSTANTAN MANGANIN MANGANIN MANGANIN
6J40 6J12 6J8 6J13
Main chemical composition (%) Mn 1–2 11–13 8–10 11–13
Ni 39–41 2–3 2–5
Cu Bal Bal Bal Bal
Max Working Temperature (℃) 5–500 5–45 10–80 10–81
Density (g/cm³) 8.88 8.44 8.7 8.4
Resistivity (μΩ·m, 20℃) 0.48±3% 0.47±3% 0.35±5% 0.44±4%
Elongation (φ>1.0) ≥15 ≥15 ≥15 ≥15
Resistance Temperature Coefficient (10⁻⁵/℃, 20–600℃) – 40~+40 –3~+20 – 5~+10 0~+40
Thermo EMF (μV/℃, 0–100℃) 45 1 2 2

Danyang Haiven Electric Heating Alloy Co., Ltd. is located in Lucheng Town, Danyang City, Jiangsu Province, China. The company was established in 2010 based on the original company "Danyang Huakang Electric Heating Alloy Co., Ltd." and has been in operation for over 40 years. Since its expansion, the company's total area has reached 30,000 square meters. The company has production lines for a series of products including FeCrAl, Kanthal, CuNi, NiCr, CuMn, Kangtong, Monel, Incoloy, Hastelloy, etc. We have equipped with advanced equipment and processes, capable of providing a complete product range from raw material melting, steel rolling, stretching, heat treatment to finished products and packaging. Standardization work and strict inspections run through every stage of the product. As Haiven people, we have always adhered to the goal of "building a first-class brand and a first-class enterprise". We uphold the spirit of "quality first, reputation foremost", providing customers with the highest quality products and competitive prices. Welcome new and old customers at home and abroad to visit and patronize. Let us achieve long-term win-win cooperation.