+ High-Chromium Corrosion-Resistant Nickel Alloy Bar Cr30Ni70 | Extreme-Temperature Applications | Nickel-chromium Alloys Bar Cr30Ni70 - High Quality Inconel Alloys Supplier, Factory | FengShan
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Nickel-chromium Alloys Bar Cr30Ni70

  • Place of Origin Jiangsu,China
  • Model Number Nickel-chromium Alloys Bar Cr30Ni70
  • Trade Names Nichrome 70/30 Rod, Cr30Ni70 Bar,UNS N06008 bar,2.4872 bar
  • 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 Bar is a high-chromium (30%) nickel-based alloy engineered for extreme temperatures (up to 1300°C) and aggressive corrosive environments. With outstanding oxidation, sulfidation, and carburization resistance, it is the top choice for chemical cracking furnaces, oil refining equipment, nuclear power high-temperature components, and aerospace engines, offering both longevity and cost-effectiveness.



Limiting Chemical Composition, %


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

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

Balance Iron (Fe) & Trace Elements



Material Characteristics


Density

about 8.3g/cm³

Resistivity

1.25 μΩ·m (20°C)

Temperature Range

Continuous Service 1250°C, Short-Term Peak 1350°C



Material Properties


● Superior High-Temperature Oxidation Resistance:

Forms a dense Cr₂O₃-Al₂O₃ composite layer at 1300°C, extending lifespan by 50%.


● Sulfidation & Carburization Resistance:

Resists sulfur-, chlorine-, and carbon-rich media in refining and chemical processes.


● Cryogenic to High-Temperature Toughness:

Stable mechanical properties from -200°C to 1300°C.



Core Advantages


● Extreme Environment Adaptability:

Resists oxidation, reduction, sulfidation, and carburization.


● Cost Efficiency:

Reduces component replacement frequency, cutting maintenance costs by 40%.


● Weldable & Formable:

Compatible with TIG welding, hot forging, and cold rolling for complex geometries.



Typical Applications


● Petrochemical:

Cracking furnace tubes, hydrogenation reactor internals, sulfur recovery units.

● Nuclear Power:

Reactor control rod conduits, steam generator support rings.

● Aerospace:

Rocket engine nozzle liners, hypersonic vehicle thermal shields.



Technical Parameters


ParameterNumericUnit
Melting Point1420-1470
Tensile Strength≥700MPa
Elongation≥15%
Surface FinishPickled / Shot Blasted-
Thickness Range10.0-300.0mm
Width Range50-1000mm



Applicable Industries


● Oil & Gas Exploration & Refining

● Nuclear Power & Waste Management

● Aerospace & Defense

● Specialty Chemical & Pharmaceutical

● High-Temperature Metallurgical Equipment



Packaging & Certifications


● Packaging:

Anti-corrosion coating + reinforced steel frame crates for harsh sea/land transport.


● Certifications:

Compliant with ASTM B166, ASME SB166, NACE MR0175; PMI test reports available.



Why Choose This Product?


● Precision Composition:

30% Cr and 70% Ni ratio optimizes corrosion and high-temperature resistance.


● Global Supply Chain:

72-hour emergency delivery available for key industrial regions.


● Lifecycle Management:

Full technical support from selection to failure analysis.



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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