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Precision Alloys
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- 1J330(1J30)
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- 1J332(1J32)
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- 1J330(1J30)
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- 1J332(1J32)
- 1J338(1J38)
- 1J350(1J50)
- 1J479(1J79)
- 1J485(1J85)
- 4J332(4J32)
- 4J332A(4J32A)
- 4J328(4j34)
- 4J329(4J29)
- 4J336(4J36)
- 4J342(4J42)
- 4J343(4J43)
- 4J352(4J49)
- 4J350(4J50)
- 6J415(6J15)
- 6J420(6J20)
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- 1J485(1J85)
- 4J332(4J32)
- 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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- 6J425(6J25)
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- 6J520(6J27)
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- Bar
- 1J330(1J30)
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- 1J485(1J85)
- 4J332(4J32)
- 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)
- 6J425(6J25)
- 6J426(6J26)
- 6J520(6J27)
- 6J525(6J28)
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Nickel-chromium Alloys Electric furnace wire Cr30Ni70
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
Parameter | Numeric | Unit |
---|---|---|
Melting Point | 1450 | ℃ |
Tensile Strength | ≥850 | MPa |
Elongation | ≥15 | % |
Surface Finish | Sandblasted / Aluminized | - |
Thickness Range | 1.0-12.0 | mm |
Width Range | Customized |
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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