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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Core Advantage Specification

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.

Name	Code	Main Composition (%)				Standard
Name	Code	Cu	Mn	Ni	Si	Standard
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