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- 1J485(1J85)
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- 4J332A(4J32A)
- 4J328(4j34)
- 4J329(4J29)
- 4J336(4J36)
- 4J342(4J42)
- 4J343(4J43)
- 4J352(4J49)
- 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)
- 6J424(6J24)
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- 6J426(6J26)
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Nickel-chromium Alloys Flat Strip Cr30Ni70
Overview
Cr30Ni70 Nickel-Chromium Alloy Strip is an advanced alloy with 30% chromium and 70% nickel, designed for extreme high-temperature, corrosive environments, and high mechanical strength applications. It delivers superior oxidation resistance (stable up to 1300°C), resistance to sulfide/chloride corrosion, and high-temperature durability. Ideal for nuclear power systems, chemical reactors, and aerospace components. Customizable thickness (0.05-12mm) and width (5-1500mm) for critical industrial applications.
Limiting Chemical Composition, %
Chromium(Cr)..................................................................................................................................30.0
Aluminum(Ni)..................................................................................................................................70.0
Balance Iron (Fe) & Trace Elements
Material Characteristics
Density |
about 8.5g/cm³ |
Resistivity |
1.10 μΩ·m (20°C) |
Temperature Range |
-50°C ~ 1300°C |
Temperature Range |
Continuous Service ≤1250°C, Short-Term Peak ≤1350°C (≤24小时) |
Material Properties
● Ultra-High Temperature Resistance:
Continuous operation below 1300°C with self-healing Cr₂O₃ layer.
● Extreme Corrosion Resistance:
Resists concentrated acids, molten salts, and chlorine gas at high temperatures.
● High-Temperature Strength:
Maintains ≥400 MPa tensile strength at 1150°C with exceptional creep resistance.
Core Advantages
● Extreme Environment Adaptability:
First choice for nuclear reactors and deep-sea equipment.
● Extended Service Life:
50% longer lifespan than conventional alloys, reducing TCO.
● Advanced Processing:
Supports laser cutting, vacuum brazing, and precision shaping.
Typical Applications
● Nuclear Power
Reactor coolant pipes, nuclear waste container linings, fuel rod supports.
● Chemical & Energy
Acid regeneration units, molten salt storage, oil cracking reactors.
● Aerospace
Rocket nozzle linings, hypersonic vehicle thermal shields.
Technical Parameters
Parameter | Numeric | Unit |
---|---|---|
Melting Point | 1420-1450 | ℃ |
Tensile Strength | ≥620 MPa (room temperature) / ≥400 MPa (1150°C) | -- |
Elongation | ≥20 | % |
Surface Finish | Bright / Sandblasted / Annealed | - |
Thickness Range | 0.05-12.0 | mm |
Width Range | 5-1500 | mm |
Applicable Industries
● Nuclear & Renewable Energy
● Advanced Chemical & Petrochemical
● Aerospace & Defense
● Specialized Equipment Manufacturing
Packaging & Certifications
● Packaging:
Argon-protected vacuum sealing + explosion-proof crates.
● Certifications:
ISO 9001, ASME BPVC, NACE MR0175, ASME III-NF compliant.
Why Choose Cr30Ni70?
● Material Innovation:
30% chromium enhances corrosion/oxidation resistance in extreme conditions.
● Global Logistics:
48-hour emergency order response across continents.
● Lifecycle Management:
Data-driven support from design to decommissioning.
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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