+ Cr30Ni70 Nickel-Chromium Alloy Electric Furnace Wire | Ultra-High Chromium Corrosion-Resistant Heating Wire for Harsh Industrial Environments - High Quality Inconel Alloys Supplier, Factory | FengShan
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Nickel-chromium Alloys Electric furnace wire Cr30Ni70

  • Place of Origin Jiangsu,China
  • Model Number Nickel-chromium Alloys Electric furnace wire Cr30Ni70
  • Trade Names Cr30Ni70 Electric Furnace Wire
  • Dimensions Customized Size
  • Delivery Conditions Grinding. Polished. Bright.
  • Avaliable Shapes Wire.Customized
  • MOQ 50~200 (KG)
  • Production Standards GB/T 1234-2010
  • 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

Overview


Cr30Ni70 Nickel-Chromium Alloy Electric Furnace Wire features a reinforced composition of 30% chromium and 70% nickel, engineered for extreme corrosive (acid/alkali/sulfide) and high-temperature oxidative environments. With continuous operation at 1250°C (short-term peak 1400°C) and outstanding intergranular corrosion resistance, it is the premier heating solution for heavy industries including petrochemicals, metallurgy, and waste incineration.



Limiting Chemical Composition, %


Chromium(Cr)..................................................................................................................................30.0

Aluminum(Ni)..................................................................................................................................70.0

Balance Iron (Fe) & Trace Elements



Material Characteristics


Density

about 8.7g/cm³

Resistivity

1.18 μΩ·m (20°C)

Temperature Range

Continuous Service 1250°C, Short-Term Peak 1400℃



Material Characteristics


● Triple Protection:

Chromium-rich Cr₂O₃ layer resists sulfide corrosion and oxidative spalling.


● Thermal Shock Resistance:

Grain boundary engineering withstands rapid thermal cycling (>1000°C).


● Low Expansion Coefficient:

40% less deformation at high temps enhances mounting stability.



Core Advantages


● Harsh Environment Durability:

3x lifespan in pH 2-12 corrosive media.


● Carburization Immunity:

High chromium blocks carbon penetration to prevent embrittlement.


● Modular Replacement:

Pre-welded connectors enable on-site rapid maintenance.



Typical Applications


● Petrochemical Cracking Furnace Tubular Heating Systems

● Metallurgical Continuous Casting Mold Heating Modules

● Hazardous Waste Incinerator Secondary Combustion Chamber Heating Belts

● Offshore Platform High-Temp Desulfurization Equipment



Technical Specifications


ParameterNumericUnit
Melting Point1450
Tensile Strength≥850MPa
Elongation≥15%
Surface FinishSandblasted / Aluminized-
Thickness Range1.0-12.0mm
Width RangeCustomized



Applicable Industries


● Petrochemical & Oil Refining

● Heavy Metal Smelting & Foundry

● Environmental Hazardous Waste Treatment

● Offshore Engineering & Shipbuilding



Packaging & Certifications


● Packaging:

Nitrogen-filled + dual-layer anti-rust film with marine-grade anti-salt spray protection.


● Certifications:

API 6A (Oilfield Equipment), NACE MR0175 (Sulfide Resistance), ISO 21457 (Material Selection).



Why Choose Us?


● Application Database:

Corrosion environment matching algorithm based on 2000+ cases.


● Full-Scale Testing:

Third-party high-temperature creep test reports for every batch.


● Emergency Response:

24/7 global technical support for critical equipment failures.



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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