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- 4J329(4J29)
- 4J336(4J36)
- 4J342(4J42)
- 4J343(4J43)
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- 4J350(4J50)
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- 4J332A(4J32A)
- 4J328(4j34)
- 4J329(4J29)
- 4J336(4J36)
- 4J342(4J42)
- 4J343(4J43)
- 4J352(4J49)
- 4J350(4J50)
- 6J415(6J15)
- 6J420(6J20)
- 6J422(6J22)
- 6J423(6J23)
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Nickel-chromium Alloys Bar Cr20Ni35
Overview
Cr20Ni35 Nickel-Chromium Alloy Bar is a high-nickel alloy engineered for extreme oxidation, carburization, and sulfidation environments. With exceptional high-temperature strength (up to 1200°C), superior creep resistance, and excellent machinability, it is the ideal material for petrochemical pyrolysis furnaces, nuclear power equipment, semiconductor high-temperature furnaces, and aerospace engine components.
Limiting Chemical Composition, %
Chromium(Cr)..................................................................................................................................20.0
Aluminum(Ni)..................................................................................................................................35.0
Balance Iron (Fe) & Trace Elements
Material Characteristics
Density |
about 8.2g/cm³ |
Resistivity |
1.08 μΩ·m (20°C) |
Temperature Range |
Continuous Service 1150°C, Short-Term Peak 1300°C |
Material Properties
● Ultra-High Temperature Stability:
Forms a continuous Cr₂O₃ protective layer for oxidation resistance up to 1200°C.
● Carburization & Sulfidation Resistance:
Resists carbon- and sulfur-rich gas attacks, extending equipment lifespan.
● Cryogenic to High-Temperature Toughness:
Maintains ductility from -196°C to 1200°C.
Core Advantages
● Extreme Environment Adaptability:
Suitable for oxidation, reduction, carburization, and mixed conditions.
● Long-Term Cost Efficiency:
Reduces high-temperature component replacement frequency, cutting overall costs by 30%.
● Precision Machining Compatibility:
Supports CNC turning, welding, and cold rolling for complex parts.
Typical Applications
● Petrochemical Pyrolysis Furnaces:
Radiant tubes, cracking tubes, quench boiler parts.
● Nuclear Power Equipment:
Reactor pressure vessel linings, steam generator tube sheets.
● Semiconductor Manufacturing:
CVD reactor supports, wafer heating trays.
Technical Specifications
Parameter | Numeric | Unit |
---|---|---|
Melting Point | 1390-1440 | ℃ |
Tensile Strength | ≥580 | MPa |
Elongation | ≥40 | % |
Surface Finish | Mirror / Pickled | - |
Thickness Range | 8.0-180.0 | mm |
Width Range | 20-600 | mm |
Applicable Industries
● Oil & Gas
● Nuclear Power Generation
● Semiconductor & Electronics
● Aerospace
● Specialty Chemical Processing
Packaging & Certifications
● Packaging:
Vacuum anti-rust film + custom steel crates, moisture-proof and shock-resistant for sea/air freight.
● Certifications:
Compliant with ASTM B166, ASME SB166, EN 10095; full traceability reports available.
Why Choose This Product?
● Composition & Performance Edge:
35% nickel content enhances carburization resistance and high-temperature strength.
● Global Delivery Network:
JIT delivery available for key industrial zones in Europe, Americas, and Asia-Pacific.
● Full Lifecycle Support:
One-stop technical services from material 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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