ZYTC Inconel® 602 CA (UNS N06602A) Nickel-Chromium Alloy - Product Technical Selection Guide

As an ISO 9001 and AS9120 certified supplier of specialty alloys, ZYTC Alloy presents this comprehensive technical guide for Inconel® 602 CA. This guide is designed to provide your engineering and procurement teams with all necessary information for a confident and precise material evaluation.

I. Basic Product Information

This section provides a foundational overview of alloy 602 CA, outlining its core identity, key value proposition, certified performance limits, and available product forms.

• Material Name: Inconel® 602 CA Nickel-Chromium Alloy (UNS N06602A / DIN EN 10302)
• Material Definition: A nickel-chromium alloy specifically engineered for extreme high-temperature service. Its unique composition, featuring aluminum additions and stabilization with yttrium and zirconium, grants it outstanding resistance to oxidizing atmospheres, superior high-temperature strength, and exceptional long-term creep resistance.
• Certified Performance Limits:
  • Up to 899°C (1650°F): ASME Boiler and Pressure Vessel Code, Section I (Pressure Vessels)
  • Up to 980°C (1800°F): ASME Section VIII, Division 1
  • Up to 1150°C (2100°F): VdTÜV Material Data Sheet
• Certification & Quality: ZYTC Alloy is ISO 9001 and AS9120 certified, ensuring full traceability, material integrity, and compliance with the most stringent international standards.
• Product Forms Available from ZYTC:
  • Pipes & Tubes (Seamless)
  • Sheets, Plates & Strips
  • Bars, Rods & Wire
  • Forgings & Custom Components

II. Material Standards & Specifications

ZYTC alloy 602 CA products are manufactured and tested to meet the following industry-standard specifications, guaranteeing material integrity and performance for critical applications.

III. Chemical Composition (wt%)

The exceptional high-temperature properties of alloy 602 CA are a direct result of its precise chemical formulation. The synergistic combination of aluminum, yttrium, and zirconium is critical for oxide scale adherence and long-term creep resistance.

Note: Specifications may vary slightly. According to UNS, for example, the maximum Manganese content is 0.15 wt%. Please consult with our technical team for specific requirements.

IV. Service Conditions & Material Selection Boundaries

This section is designed to help your technical team determine if Inconel® 602 CA is the optimal solution for your specific operating environment.

• Suitable Conditions (Why choose it?)
  1. Extreme High-Temperature Oxidation (up to 1150°C): Unmatched performance in oxidizing atmospheres where other alloys would rapidly degrade. The yttrium and zirconium additions significantly enhance oxide scale adhesion, preventing spalling.
  2. Long-Term Creep-Limited Applications: Ideal for components subjected to continuous mechanical stress at high temperatures for extended periods (e.g., 100,000+ hours).
  3. Carburizing and Nitriding Environments: Excellent resistance to carbon and nitrogen absorption, maintaining ductility and preventing embrittlement.
  4. Thermal Cycling: Superior resistance to thermal fatigue and scale spalling under rapid heating and cooling conditions.
  5. ASME Code Applications: Suitable for pressure vessel and boiler components operating at elevated temperatures, providing design code compliance.
• Typical Applications:
  • Heat Treatment Trays, Fixtures, and Baskets
  • Muffles, Retorts, and Radiant Tubes
  • Shaker Hearths and Rotary Calciners
  • Thermowells and Catalyst Baskets
  • Furnace Rolls, Fans, and Blowers
• Material Selection Boundaries (When to consider alternatives?)
  • Highly Reducing Atmospheres: In strongly reducing environments (e.g., hydrogen, ammonia), the protective oxide scale may not be stable. Alternative alloys like those with higher chromium or molybdenum may be required.
  • Severe Sulfidizing Environments: While possessing good resistance, performance may be surpassed by cobalt-based alloys in extremely aggressive, high-sulfur conditions.
  • Aqueous Corrosion at Lower Temperatures: For highly corrosive aqueous chemical environments (e.g., strong acids), nickel alloys like Inconel 625 or Hastelloy C-276 are better suited.

V. Manufacturing Process & Heat Treatment

ZYTC Alloy maintains full process control to ensure the final product meets the required microstructural and mechanical property targets for extreme high-temperature service. Heat treatment is critical for optimizing the performance of alloy 602 CA.

• ZYTC Manufacturing Process Control:
  • Melting: Precise control over chemistry, especially aluminum, yttrium, zirconium, and carbon content.
  • Hot & Cold Working: Transforms the ingot into the required product form (plate, bar, tube, etc.).
  • Heat Treatment: Precisely controlled cycles to achieve the desired microstructure and properties.
  • Inspection: Rigorous non-destructive and destructive testing to guarantee performance.
• Heat Treatment Process Parameters:

VI. Mechanical Properties (Typical Values)

The following are typical mechanical properties for annealed conditions. Final properties can be tailored through specific heat treatment cycles to meet customer requirements.

Note: Mechanical properties are highly dependent on product form, section size, and specific heat treatment. Contact our technical team for detailed data sheets.

VII. Material Comparison & Selection Guide

This comparison is designed to aid in the selection process between Inconel 602 CA and other common high-performance alloys for extreme temperature applications.

Procurement Recommendation:

• Choose Inconel 602® CA when your primary challenge is long-term creep resistance and oxidation resistance above 1000°C, particularly for ASME code applications or where service life of 100,000+ hours is required.
• Choose Inconel® 601 for a cost-effective solution for extreme oxidation and thermal cycling up to 1204°C where creep life is less critical.
• Choose Inconel® 625 when you need a combination of high strength and exceptional resistance to a wide range of both high-temperature and aqueous corrosive environments below 1000°C.

Request a Quote or Sample Today:

If your projects demand the proven reliability of alloy 602 CA for extreme temperature applications, contact the ZYTC Alloy sales team today. We provide certified materials, technical expertise, and reliable global logistics to ensure the success of your most critical components.

Contact us to request a free sample and a competitive quote.

Contact Us

Email: daisy@zytcsteel.com

WhatsApp/WeChat: +86 17335753350