+ 6J40 Constantan Alloy Flat Wire - High Quality Inconel Alloys Supplier, Factory | FengShan
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01020304
Constantan Alloy Flat Wire 6j40
Constantan Alloy Flat Wire 6j40
Constantan Alloy Flat Wire 6j40

Constantan Alloy Flat Wire 6j40

  • Place of Origin Jiangsu,China
  • Model Number Constantan Alloy Flat Wire 6j40
  • Trade Names UNS C71500 flat wire,2.3015 flat wire
  • Dimensions Customized Size
  • Delivery Conditions Grinding. Polished. Bright.
  • Avaliable Shapes Flat Wire.Customized
  • MOQ 50~200 (KG)
  • Production Standards GB/T、GJB、YB/T、ASTM、EN、DIN、IEC
  • Packaging Details Wooden Case, or as per Client's request
  • Payment Terms L/C, T/T, Western Union, MoneyGram
  • Trade Terms FOB, CIF, DDP, DAP, EXW
  • Delivery Time 20~60 days
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product details

Overview


Constantan Alloy Flat Wire 6J40 is engineered for precision resistive applications with near-zero temperature coefficient (TCR≤±20ppm/°C), maintaining ±0.5% resistivity stability from -50°C to +400°C. Its superior oxidation resistance and fatigue performance make it ideal for industrial heaters, sensor bridges, and thermocouple compensation wires. ISO/IEC 17025 certified, 6J40 wire meets stringent material consistency requirements in medical and aerospace industries.



Limiting Chemical Composition, %


Nickel（Ni）............................................................................................................................................39.0-41.0

Manganese（Mn）.....................................................................................................................................1.0-2.0

Copper（Cu）..................................................................................................................................................Rest

The Else is no



Technical Specifications


Parameter

Value/Range

Melting Point

1210-1300°C

Tensile Strength

450-600 MPa

Elongation

20-30%

Surface Finish

Bright Annealed/Electropolished

Thickness Range

1.0mm-5.0mm

Width Range

Customized (8mm-80mm)

Temperature Resistance

-50°C ~ 400°C

Continuous Use Temp

≤400°C

Short-Term Peak Temp

≤550°C (≤30 mins)

Resistivity

0.49±0.02 μΩ·mm

Density

8.9±0.1 g/cm³



Material Properties


● Resistivity Stability:

ΔR/R≤0.5% across temperature range ensures measurement accuracy


● Low Thermal EMF:

Cu-Constantan pair EMF≤40μV/°C


● Creep Resistance:

＜0.2% creep after 1000hrs at 400°C


● Surface Uniformity:

Ra≤0.1μm ultra-smooth surface minimizes contact resistance


Core Advantages


● Versatility:

Ideal for high-temperature, high-stress, and precision applications.


● Cost-Efficiency:

Extended lifespan reduces maintenance costs.


● Eco-Friendly Compliance:

Meets RoHS and ISO standards for sustainability.



Typical Applications


● Precision Measurement:

Strain gauge & Wheatstone bridge wiring


● Thermal Management:

Industrial furnace coils, semiconductor thermal control


● Energy Systems:

Fuel cell interconnects, solar thermal collectors


● Automotive Electronics:

Engine pressure sensors, BMS wiring



Industries Served


● Precision Instruments & Test Measurement

● Power Electronics & Energy Conversion

● Automotive & Rail Transport

● Medical Diagnostic Equipment

● Aerospace Thermal Management



Packaging & Certifications


● Anti-Oxidation Packaging: Inert gas-sealed spools + vacuum aluminum bags

● Certifications: ISO/IEC 17025, RoHS 3, REACH, UL 758



Why Choose 6J40?


● Zero-Compromise Quality:

Individual material analysis reports with ICP-OES testing


● Customization Service:

Resistivity fine-tuning (±5%) & specialty coating options


● Technical Support:

Free thermo-electro-mechanical simulation models



Available Forms


We provide you with a variety of product forms, including but not limited to


● Strip & Foil

● Round Wire &Flat Wire

● Bar & Rod

● Electrothermal Strip

● Flange & Ring

● Wire & Welding

● Reststance Wire

● Electric Alloy Wire

● Electric Furnace Bar

● Customize

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