Manganese Copper Wire for Precision Resistors and Shunts

Manganese Copper Wire Used As U-Shaped M-Type Door Type Spring Type Sampling Resistor

Characteristics of Manganese Copper Wire (manganin wire)
Manganese copper wire is a precision resistance alloy with the following characteristics:
Electrical resistivity: 470 ± 30 μ Ω· m, similar to that of constantan.
Temperature coefficient of resistance: as low as 1/40 of copper, suitable for environments between 5-50 ℃.
Processing performance: Made into wire with a diameter of 0.03-8.0mm through drawing process.
Antioxidant performance: Weak, storage period should not exceed 6 months.
Welding performance: argon arc welding process is preferred.
Application areas: Sampling resistors and precision resistor components in instruments and electronic devices.
Manganese copper wire has become an indispensable material in modern electronics and industrial equipment due to its excellent performance and wide applications.

Product introduction:

Common name: Manganin, Manganina 43, Alloy290

Chemical composition % and main parameters:

Manganin wire is essential in applications requiring high precision, stability, and low thermal drift. Its unique composition ensures reliable performance in demanding electrical and measurement systems.

Key Properties of Manganin Wire:

1. Low Temperature Coefficient of Resistance (TCR):

• Manganin maintains nearly constant resistance over a wide temperature range (typically ±20 ppm/°C), making it ideal for precision resistors.

2. High Resistivity (~0.47 µΩ·m):

Allows for compact resistor designs without excessive length.

​3. Minimal Thermoelectric Voltage (vs Copper):

• Reduces errors in sensitive measurements.

4. Good Mechanical Properties:

• Can be drawn into fine wires and shaped for various applications.

Advantages of manganin product:

• Precision resistors (shunts, decade boxes, calibration standards)

• Current sensing (ammeters, power measurement)

• Strain gauges & sensors (due to stable resistance under stress)

• Laboratory and industrial instruments requiring stable resistance

Tankii can supply manganin round wire, flat wire, strip. bar.

Tankii's Advantages:

1. Competitive Pricing
2. Strategic Locations- Worldwide partners to provide immediate support.
3. Worldwide Product Acceptability-Reputable companies preferred choice.
4. Customized Designs-Experienced Engineers support to special applications.
5. OEM Capability- Your Brand, Our Quality
6. Trustworthy-Reliable and Dependable partner.

More pictures for your reference:

Application fields of manganin

Manganin is typically used for the manufacturing of

• Resistance standards,
• Precision wire wound resistors,
• Potentiometers,
• Shunts
• And other electrical and electronic components.

For further information, please don't hesitate to contact us.

Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Manganin, Copper Nickel Alloy, thermocouple wire, pure nickel and other precision alloy materials in the form of round wire, ribbon wire, sheet, tape, strip, rod and plate.

We’ve already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system.

We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.

Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over forty years in this field. During forty years, hundreds of management elites and high science and technology talents were employed.They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market.

Based on the principle of “first quality, sincere service”, our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.

Our products, such us nichrome wire, nichrome strip, fecral wire, fecral strip, thermocouple wire, nickel wire, nickel strip have been exported to Europe, USA, India, Southest Asia, South America,etc.

We are willing to establish strong and long-time partnership with our customers

• Most complete range of products dedicated to Resistance, Thermocouple and Furnace manufacturers
• Quality with end to end production control
• Technical support and Customer Service