- Fe-Cr-Al Alloys
- Nickel-chromium Alloys
- Cn/Mn-Cu Alloys
- Cu-Ni Alloys
-
Precision Alloys
- Wire
- 1J330(1J30)
- 1J331(1J31)
- 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)
- 6J422(6J22)
- 6J423(6J23)
- 6J424(6J24)
- 6J425(6J25)
- 6J426(6J26)
- 6J520(6J27)
- 6J525(6J28)
- Flat Wire
- 1J330(1J30)
- 1J331(1J31)
- 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)
- 6J422(6J22)
- 6J423(6J23)
- 6J424(6J24)
- 6J425(6J25)
- 6J426(6J26)
- 6J520(6J27)
- 6J525(6J28)
- Flat Strip
- 1J330(1J30)
- 1J331(1J31)
- 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)
- 6J422(6J22)
- 6J423(6J23)
- 6J424(6J24)
- 6J425(6J25)
- 6J426(6J26)
- 6J520(6J27)
- 6J525(6J28)
- Bar
- 1J330(1J30)
- 1J331(1J31)
- 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)
- 6J422(6J22)
- 6J423(6J23)
- 6J424(6J24)
- 6J425(6J25)
- 6J426(6J26)
- 6J520(6J27)
- 6J525(6J28)
- Wire
- Ni-Al Alloys
- Pure Nickel Alloys
- Monel Alloys
- Hastelloy Alloys
- Inconel Alloys
- Incoloy Alloys
- Haynes Alloys
Nickel-chromium Alloys Bar Cr30Ni70
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
Parameter | Numeric | Unit |
---|---|---|
Melting Point | 1420-1470 | ℃ |
Tensile Strength | ≥700 | MPa |
Elongation | ≥15 | % |
Surface Finish | Pickled / Shot Blasted | - |
Thickness Range | 10.0-300.0 | mm |
Width Range | 50-1000 | mm |
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
description2