+ CuMn7SN Manganese Copper Alloy Round Wire | CuMn7SN Manganese Copper Alloy Round Wire | High Resistivity & Corrosion-Resistant Precision Electrical Material- High Quality Inconel Alloys Supplier, Factory | FengShan
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01020304
CuMn7SN Manganese Copper Alloy Round Wire
CuMn7SN Manganese Copper Alloy Round Wire
CuMn7SN Manganese Copper Alloy Round Wire

CuMn7SN Manganese Copper Alloy Round Wire

  • Place of Origin Jiangsu,China
  • Model Number CuMn7SN Manganese Copper Alloy Round Wire
  • Trade Names UNS C96400 wire,2.1290 wire
  • Dimensions Customized Size
  • Delivery Conditions Grinding. Polished. Bright.
  • Avaliable Shapes 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


CuMn7SN Manganese Copper Alloy Round Wire is engineered for precision resistors and high-temperature applications, achieving an optimal balance of resistivity (0.34-0.38 μΩ·m) and tensile strength (550-700 MPa) through controlled manganese content (6.5-7.5% Mn). With superior oxidation and sulfidation resistance, it maintains stable performance from -50°C to 300°C, ideal for power electronics, industrial heaters, and automotive sensors. Compliant with IEC 60167 standards, offering fully traceable batch certifications.



Limiting Chemical Composition, %


Manganese（Mn）..............................................................................................................................6.5-7.5

Copper（Cu）.....................................................................................................................................Balance

Tin（Sn）..............................................................................................................................................0.1-0.3

Iron（Fe）...............................................................................................................................................≤0.15

Other Impurities is Si, C, S strictly controlled，Total ≤0.3.



Technical Specifications


Parameter

Value/Range

Melting Point

950-1020°C

Tensile Strength

550-700 MPa

Elongation

15-25%

Surface Finish

Bright Drawn/Nickel Plated

Diameter Range

0.1mm-10.0mm

Temperature Resistance

-50°C ~ 300°C

Continuous Use Temp

≤300°C

Short-Term Peak Temp

≤450°C (≤60 mins)

Resistivity

0.34-0.38 μΩ·m

Density

8.6±0.2 g/cm³



Material Properties


● Resistivity Stability:

TCR≤±50 ppm/°C ensures accuracy across temperatures


● Sulfidation Resistance:

Passes 3000hr ASTM B809 sulfur exposure test


● High Fatigue Life:

＞10⁶ bending cycles (R=0.5mm radius)


● Solderability:

Compatible with Sn/Pb/Au coatings for reliable bonding


Core Advantages


● Precision Resistance Control:

±1% tolerance for medical-grade applications


● Environmental Durability:

Resists 85%RH humidity & salt spray (ASTM B117)


● Rapid Production Response:

72-hour expedited delivery available



Typical Applications


● Power Electronics:

High-current shunts, transformer windings


● Industrial Heating:

Injection molding heaters, hot runner system wiring


● Automotive Tech:

EV battery current sensors, oxygen sensor leads


● Test Equipment:

Standard resistors, bridge calibration components



Industries Served


● Renewable Energy & Energy Storage

● Industrial Automation & Robotics

● Automotive & EV Manufacturing

● Precision Instruments & Lab Equipment

● Power Transmission & Distribution



Packaging & Certifications


● Moisture/ESD-Proof: Vacuum-sealed spools with shock-absorbing liner, optional O₂-free packaging

● Certifications: IEC 60167, RoHS 2.0, ISO 9001:2015, ASTM F519



Why Choose CuMn7SN?


● Military-Grade Reliability:

Passes MIL-DTL-202H vibration & shock tests


● Global Logistics:

DDP incoterms & multi-port customs clearance


● Material Database:

Free access to temperature-resistance-stress profiles



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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