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Manganin alloy wire

Product Introduction
Manganin alloy wire is a precision resistance alloy wire mainly composed of copper, manganese, nickel and other metals. It features an extremely low resistance temperature coefficient, excellent resistance stability and uniformity, with minimal resistance change under medium and low temperature conditions. It also has good weldability, processing flexibility and certain corrosion resistance, making it an ideal precision resistance material.

Applications & Instructions
1. Precision Instruments
Used to manufacture standard resistors, precision wire-wound resistors, internal meter resistors and other components.

2. Electrical Engineering
Used for high-precision shunts, current sampling resistors, current-limiting resistors and precision potentiometers.

3. Industrial Measurement & Control
Used as stable sampling and detection resistors in automation equipment, frequency converters and power supply devices.

4. Aerospace & Military Industry
Used in control and measurement circuits requiring extremely high resistance stability and precision.

5. Medical & Laboratory Equipment
Used to manufacture key resistance components in high-precision measurement and calibration circuits.

Instructions
It can be wound, cut and bent. Avoid severe stretching to prevent resistance changes. It can be connected by soldering, resistance welding and other methods to ensure firm welding joints and good contact. Provide proper insulation protection during use to avoid short circuit, moisture and mechanical damage.

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PREV：Monel( nickel-copper) alloy wireNEXT：Constantan alloy wire
Specification FAQ
Name
Code
 Main Composition (%) Standard
Cu Mn Ni Si
Manganin 6J13 Bal 11.0~13.0 2.0~5.0 — GB/T6145-2010

Name
Code
 Resistivity
μΩ·m		 Temp.Coeffi.Of
Resistance
(20-1100°C)
Thermal EMF vs. Copper (μV/℃)
Max. working Temp (℃)
Elongation (%)
Density g/cm³
Manganin 6J13 0.44±0.04 0 ~ +40 2 0 ~ 100 ≤15 8.9

Diameter(mm) 0.02-
0.028		 0.032-
0.10		 0.112-
0.28		 0.135-
0.50		 0.56-
1.0		 1.06-
1.60		 1.70-
2.12		 2.24-
3.00		 3.15-
4.50
Tolerance(mm) ±0.002 ±0.003 ±0.005 ±0.010 ±0.015 ±0.020 ±0.025 ±0.030 ±0.035

Q1: Can manganin wire be used as heating wire?
A1: Not suitable. Manganin wire is designed for high precision and low drift, not for high-temperature heating. Long-term high temperature will cause resistance drift and oxidative deterioration, so it cannot be used as electric heating wire.

Q2: Does the resistance of manganin wire change with temperature?
A2: The change is very small and highly accurate at room temperature. However, resistance will drift significantly under long-term high-temperature working conditions, so it is not recommended for high-temperature applications.

Q3: Is manganin wire easy to weld?
A3: It has good weldability and can be directly soldered, or welded by resistance welding, argon arc welding, etc. The welding is firm and stable, making it suitable for precision component processing.

Q4: Will stretching or bending affect the resistance of manganin wire?
A4: Slight bending has little effect, but excessive stretching and strong deformation will change the internal structure and cause resistance deviation. Processing should be as gentle as possible.

Related Product

Xinguo Group Co., Ltd.
ABOUT US Xinguo Group Co., Ltd.
Xinguo Group Co., Ltd. is a high-tech enterprise with subsidiaries including Anhui Xinguo Instrument Co., Ltd., Anhui Xinguo Alloy Co., Ltd., Anhui Xinguo Cable Co., Ltd. and Anhui Xinguo Precious Metals Co., Ltd. Founded in 1997, the Group is located in Tianchang City, Anhui Province — a National Civilized City. It has a registered capital of 118 million RMB, covers a land area of over 150 mu and a building area of 60,000 square meters. The company currently has more than 300 employees, among whom over 50 are professional and technical personnel including senior engineers, engineers and assistant engineers.
The Group is a China Custom Manganese Copper Alloy Wire Manufacturer and Manganese Copper Alloy Wire Supplier, mainly engages in the R&D, production and sales of temperature instruments, pressure instruments, level instruments, flow instruments and digital display instruments. Its product portfolio also encompasses power cables, control cables, compensation cables, computer cables, signal cables, MI heating cables, mineral insulated cables, electric heat tracing tapes, cable trays and accessories, high and low voltage distribution equipment, complete automation control systems, instrument valves, pipeline valves and fittings, glass instruments and laboratory equipment. We also supply platinum-rhodium wires, precision alloys and complete mechanical equipment, while providing supporting processing, manufacturing, sales and technical services. Additionally, we deal in professional instrument materials, alloy materials and precious metals. Our products are widely applied in power, petroleum, chemical, metallurgy, building materials, machinery, food, aerospace, new energy and other industrial sectors, as well as scientific research and education fields.
Anhui Xinguo Alloy Co., Ltd. is dedicated to manufacturing a full range of precision alloy materials and serves as a council member of the Instrument Materials Branch of China Instrument & Control Society. Its flagship products cover thermocouple alloy wires (K, N, E, J, T types), thermocouple compensation alloy wires (KX, EX, NX, JX, TX, KCA, KCB, NC, SC), high-resistance heating alloys, precision resistance alloys, heating resistance alloys, pure nickel wires, manganese-copper alloys and Monel alloys. These products are extensively used in aviation, petroleum, chemical engineering, machinery manufacturing, power and energy industries.
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