Hastelloy C22 nickel-based alloy steel plate round bar pipe

Hastelloy C22 nickel-based alloy steel Description

Hastelloy C22 nickel-based alloy steel also known as UNS N06022, adheres to standards such as ASTM B575 (plate, sheet, and strip), ASTM B622 (seamless pipe and tube), and ASTM B574 (bar and wire). This nickel-chromium-molybdenum-tungsten alloy is designed for superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for harsh chemical environments.

The Hastelloy C22 alloy steel properties include outstanding resistance to both oxidizing and reducing environments, surpassing many other nickel alloys. Its high chromium and molybdenum content provide excellent protection against acids like sulfuric, hydrochloric, and nitric, as well as chloride-induced corrosion. The alloy maintains its integrity at elevated temperatures up to 1250°C (2282°F) and exhibits good weldability, enabling complex fabrications.

Hastelloy C22 nickel alloy steel applications span industries requiring robust materials for extreme conditions. Common uses include:

• Chemical Processing: Reactors, heat exchangers, and piping systems handling corrosive acids.
• Pharmaceutical Industry: Equipment for sterile and corrosion-free environments.
• Pollution Control: Flue gas desulfurization systems and scrubbers.
• Aerospace: Components exposed to high temperatures and corrosive gases.
• Marine Engineering: Parts in seawater environments due to chloride resistance.

Hastelloy C22 alloy uses make it a preferred choice for engineers seeking durability and reliability in challenging settings.

Hastelloy C22 nickel-based alloy steel Datasheet

Hastelloy C22 nickel alloy steel is available in various forms, each suited to specific applications. Below are the conventional types and their typical dimensions:

• Sheet and Plate:
  • Thickness: 0.5 mm to 50 mm
  • Width: Up to 2,500 mm
  • Length: Up to 6,000 mm
• Seamless Pipe and Tube:
  • Outer Diameter: 6 mm to 168 mm
  • Wall Thickness: 0.5 mm to 20 mm
  • Length: Up to 12,000 mm
• Bar and Rod:
  • Diameter: 5 mm to 300 mm
  • Length: Up to 6,000 mm
• Fittings and Flanges:
  • Sizes: Per ASME B16.9/B16.5 standards, typically ½” to 24” nominal diameter

Note: Custom dimensions may be available depending on supplier capabilities.

Hastelloy C22 nickel-based alloy steel Chemical composition

The Hastelloy C22 alloy chemical composition is carefully balanced to optimize corrosion resistance and mechanical performance. Below is the typical composition:

Hastelloy C22 nickel-based alloy steel Mechanical Properties

The Hastelloy C22 alloy mechanical properties ensure its suitability for high-stress applications. Typical values are:

Note: Values may vary slightly based on product form and heat treatment.

Equivalent Grade of Hastelloy C22 nickel-based alloy steel

Hastelloy C22 has few direct equivalents due to its unique composition, but comparable alloys include:

Consult specific standards for compatibility in Hastelloy C22 nickel alloy uses.