Hangbo Alloy Group offers a diverse range of materials, including round bars, steel plates, strips, seamless pipes, forged products, and wire. Below is a detailed overview of HASTELLOY C-22:
Detailed Introduction to Hastelloy C-22
Hastelloy C-22 is a versatile nickel-chromium-molybdenum alloy known for its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. This alloy is effective in a variety of harsh environments, particularly those involving chlorides and other aggressive chemicals.
Hastelloy C-22 retains its mechanical properties and stability across a wide temperature range. It is often chosen for applications in the chemical processing and pharmaceutical industries due to its reliability and performance.
Equivalent Grades by Country:
• ASTM: UNS N06022
• DIN: NiCr21Mo W.Nr.2.4602
• GB/T: NS3304
International Standards for Hastelloy C-22 Products
The following table outlines the applicable standards for Hastelloy C-22 in various forms:
| Product Form | ASTM Standard |
|---|---|
| Plate,Sheet&Strip | ASTM B575 |
| Round Bar | ASTM B574 |
| Seamless Pipe&Tube | ASTM B622 |
| Welded Pipe&Tube | ASTM B619,ASTM B626 |
| Forging | ASTM B564,ASTM B462 |
| Fittings | ASTM B366 |
Chemical Composition of Hastelloy C-22
The chemical composition of Hastelloy C-22 is summarized in the following table:
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 50.1 - 63.0 |
| Molybdenum (Mo) | 12.5 - 14.5 |
| Chromium (Cr) | 20.0 - 22.5 |
| Iron (Fe) | 2.0 - 6.0 |
| Tungsten (W) | 2.5 - 3.5 |
| Cobalt(Co) | ≤ 2.50 |
| Carbon (C) | ≤ 0.015 |
| Silicon (Si) | ≤ 0.08 |
| Manganese (Mn) | ≤ 0.50 |
| Phosphorus (P) | ≤ 0.020 |
| Sulfur (S) ≤ | 0.020 |
| Vanadium(V) | ≤ 0.35 |
Physical Properties of Hastelloy C-22
Key physical properties of Hastelloy C-22 are outlined in the table below:
| Property | Value |
|---|---|
| Density | 8.9 g/cm³ |
| Melting Point | 1325-1370 °C |
Material Characteristics
Hastelloy C-22 is characterized by several key properties:
• Corrosion Resistance: Outstanding resistance to various forms of corrosion, particularly in aggressive chemical environments.
• High Strength: Retains strength and stability under high temperatures and pressures.
• Weldability: Can be easily welded using standard techniques, facilitating fabrication.
• Versatility: Suitable for a wide range of applications due to its excellent mechanical properties.
Applications of Hastelloy C-22
Hastelloy C-22 is utilized across various industries, including:
• Chemical Processing: Equipment such as reactors, heat exchangers, and pipelines handling corrosive substances.
• Pharmaceuticals: Components in drug manufacturing processes that require high corrosion resistance.
• Oil and Gas: Parts used in environments with high chloride concentrations, such as offshore applications.
• Environmental: Systems for waste treatment and flue gas desulfurization.
