Low Drift Constantan 6j11 Micro Wire for Precision Resistors, High Stability

• Customization: Available
• Application: Aviation, Electronics, Industrial, Medical, Chemical
• Standard: JIS, GB, DIN, BS, ASTM, AISI, ISO 9001
• Model NO.: 6J11
• Purity: Cu55-57% Ni43-45%
• Alloy: Alloy
• Type: CuNi Wire
• Powder: Not Powder
• Resistivity: 0.49 μΩ·m
• TCR: ±40 Ppm/°c
• Diameter: 0.01-0.05 mm
• Tensile Strength: 500-800 MPa
• Elongation: 2-5%
• Operating Temp: -200~+400°c
• Corrosion Resistance: Excellent
• Surface: Bare/Plated
• Transport Package: Carton or Wooden Case
• Specification: 0.01mm-10mm
• Trademark: DLX
• Origin: Changzhou, Jiangsu, China
• HS Code: 7408290000
• Production Capacity: 1000000ton/Year

Product Description

Product Overview

6J11 (Constantan) is a copper-nickel-manganese (Cu-Ni-Mn) precision resistance alloy characterized by low temperature coefficient of resistance, high resistivity, excellent thermoelectric properties, and stable mechanical characteristics. It is widely used in precision resistors, thermocouples, sensors, and electronic components.

Key Features

Stable Resistivity	Resistivity (0.48~0.52 μΩ·m) remains highly stable with minimal temperature influence (TCR ±20 ppm/°C), making it ideal for precision measurements.
Superior Thermoelectric Performance	Commonly used in Type E (Nickel-Chromium/Constantan) and Type T (Copper/Constantan) thermocouples, with a broad temperature range (-200°C to +400°C).
Excellent Machinability	High ductility allows drawing into micron-level fine wires (below 0.01mm) or rolling into foil strips, suitable for precision electronic components.
Corrosion Resistance	Good oxidation resistance at room temperature, suitable for general industrial environments.

 

 

 

Typical Applications

 

Precision Resistors: Shunt resistors, standard resistors, high-accuracy measurement circuits

Temperature Sensing: Thermocouples (Type E, Type T), temperature sensors

Strain Measurement: Strain gauges, force sensors

Electronics Industry: Thin-film resistors, micro-fine wires, flexible circuits

With stable electrical properties, excellent process adaptability, and reliable thermoelectric performance, 6J11 Constantan serves as a critical functional material in instrumentation, aerospace, and electronic equipment industries.

 

Certifications

 

Company Profile

CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.

 

 

FAQ

Q: What is 6J11 (Constantan)?
A: 6J11 is a copper-nickel-manganese (Cu-Ni-Mn) alloy with stable resistivity and low temperature coefficient, widely used in precision resistors, thermocouples, and strain gauges.

Q: What are the key properties of 6J11?
A: Resistivity: 0.48~0.52 μΩ·m

    Temperature Coefficient (TCR): ±20 ppm/°C
    Operating Temperature: -200°C to +400°C

    Good ductility & corrosion resistance

Q: What is the difference between 6J11 and other Constantan alloys?
A: 6J11 follows the Chinese GB standard (Cu55Ni44Mn1), similar to ASTM Constantan (Cu55Ni45). The main difference is minor composition adjustments for optimized performance in precision applications.

Q: What are the common applications of 6J11?
A: Thermocouples (Type E & T)
     Precision resistors & shunts
    Strain gauges & force sensors

     Microelectronics & thin-film circuits

Q: Are you a trading company or manufacturer?
A: We're manufacturer.

Q: Could you help to design the product?

A:  Yes, we have excellent R&D team, OEM/ODM orders are all welcome.

 

Q: Could you supply samples?

A: Yes, wecould supply samples according to your requirement.

Q:Could we visit your factory?
A: Sure, factory visit is warmly welcome.