NeoNickel

602 CA®

Alloy 602CA is a high-temperature nickel-chromium alloy that delivers outstanding oxidation resistance and thermal stability up to 1232°C.

Characteristics of 602 CA®

Alloy 602CA, also known as Inconel® Alloy 602CA (a registered trademark of VDM Metals International GmbH), is the most oxidation-resistant and high-strength nickel alloy available on the market today. It has been specifically engineered to provide long-term structural integrity under extreme heat, high mechanical stress, and corrosive gas exposure.

The alloy's high chromium (24–26%) and aluminium (1.8–2.4%) content forms a tenacious, protective oxide scale that ensures superior oxidation resistance. The presence of yttrium further enhances scale adherence, making Alloy 602CA suitable for prolonged use in carburising, sulphidising, and oxidising atmospheres.

With a high creep rupture strength—up to 150% greater than comparable high-temperature alloys—602CA resists thermal fatigue and deformation, ensuring durability even during thermal cycling.

  • Outstanding oxidation resistance up to 1232°C
  • High creep rupture strength for demanding environments
  • Superior carburisation resistance in carbon monoxide and methane atmospheres
  • Exceptional mechanical stability during thermal cycling
  • High ductility and weldability for easy fabrication
  • Proven high-temperature mechanical strength in prolonged service
  • UNS Number: N06025
  • Werkstoff Number: 2.4633
  • ASTM: B166, B168, B163, B167, B462, B517, B546, B564, B366

Product availability

We stock Alloy 602CA® in a variety of product forms to suit different applications and fabrication methods, including plate, round bar, sheet, welding wire and TIG welding wire. To view available sizes and submit an inquiry, use the dropdown selector below.

Plate
Round Bar
Sheet
Welding Wire
Welding Wire (TIG)

Chemical analysis

%NiCrCuCMnSiYFeTiAlZr
MinBalance2400.15000.0580.11.80.01
MaxBalance260.10.250.150.50.12110.22.40.1

Key Properties

  • Density: 7.89 g/cm³
  • Melting Range: 1340-1400°C
  • Specific Heat Capacity: 450 J/kg.°C
  • Electrical Resistivity: 1.23 µΩ.m

These properties make 602CA alloy ideal for components exposed to both extreme heat and corrosive gases, where longevity and mechanical performance are critical.

Mechanical & Physical Properties

Mechanical & Physical Properties21.1°C93.3°C204.4°C315.6°C371.1°C537.8°C684.9°C700°C815°C870°C982°C1093°C1204°C
Ultimate Tensile Strength /MPa6756506256005805605204202842261189040
2702402202001901801751702391971058034
38303030304330307882788596
------1851323216.56.62.2-
-------1554222.110.34.63
-14.1514.2714.4214.6314.915.3-1616.7117.3117.91-
8.9410.5812.0413.3314.5317.2618.320.53-22.0223.5115.15-
215209201197192189185-154137118102-

Applications of 602 CA®

Thanks to its high oxidation resistance, mechanical strength, and carburisation resistance, Alloy 602CA is widely adopted in high-performance industrial applications.

Industrial Heat Processing

  • Radiant tubes
  • furnace muffles
  • Retorts and heat-treat fixtures
  • Copper brazing equipment
  • Thermocouple protection tubes

Power Generation & Energy

  • Steam superheater tube supports
  • Heat recovery systems
  • Hot ducting and expansion joints
  • Combustion liners and burner heads

Chemical & Nuclear Processing

  • Nuclear waste incineration
  • Heat exchangers
  • Vitrification liners
  • Components exposed to acid and oxidising conditions

Metallurgy & Materials Manufacturing

  • Rotary kiln hangers
  • Furnace trays and crucibles
  • Sintering supports
  • Strand annealing tubes
  • Radiant tubes
  • Muffles
  • Furnace retorts

Benefits of Choosing 602 CA®

Alloy 602CA offers a high-performance solution for engineers seeking reliability in the harshest environments. Whether you're designing equipment for continuous thermal exposure or corrosive chemical contact, this alloy offers proven longevity.

  • Exceptional Oxidation Resistance: Withstands continuous operation up to 1232°C
  • High Strength: Maintains load-bearing capacity at elevated temperatures
  • Carburisation Resistance: Performs well in carbon-rich and sulphur-bearing environments
  • Broad Temperature Range: Useful from ambient to extreme thermal applications
  • Backed by Trusted Supplier: Supplied in certified forms by NeoNickel, a recognised industry specialist

Request a Quote

We stock Alloy 602CA® in a variety of product forms to suit different applications and fabrication methods, including plate, round bar, sheet, welding wire and TIG welding wire. To view available sizes and submit an inquiry, use the dropdown selector below.

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