Hastelloy C Is A Nickel-Chromium-Molybdenum Alloy With Excellent
Resistance To Oxidation And Corrosion
Hastelloy C Alloy is a high-performance nickel-chromium-molybdenum
superalloy known for its outstanding resistance to oxidation and
corrosion in extreme environments. Designed to excel in both
oxidizing and reducing conditions, this alloy is particularly
effective in handling harsh chemical processes.
Key Properties and Features:
- Corrosion Resistance: Offers exceptional resistance to a wide range of corrosive media,
including oxidizing acids (such as nitric acid) and reducing acids
(like hydrochloric acid). It is also highly resistant to pitting
and stress-corrosion cracking.
- Temperature Stability: Maintains excellent mechanical properties at elevated
temperatures, up to approximately 2200°F (1200°C), making it
suitable for high-temperature applications.
- Mechanical Strength: Provides high tensile and yield strength, ensuring durability and
structural integrity under mechanical stress. The alloy also
exhibits good creep and fatigue resistance.
- Fabrication and Welding: Easily weldable and machinable using standard techniques, allowing
for versatile applications and complex component fabrication.
- Applications: Commonly used in chemical processing equipment, aerospace
components, industrial gas turbines, and other high-performance
applications where resistance to extreme environments is critical.
Hastelloy C’s superior resistance to both oxidative and reductive
environments, combined with its high strength and temperature
stability, makes it a preferred choice for demanding industrial and
aerospace applications.
Here’s a composition table for Hastelloy C Alloy:
| Element | Composition Range (%) |
|---|
| Nickel (Ni) | 52.0 - 59.0 |
| Chromium (Cr) | 14.0 - 16.0 |
| Molybdenum (Mo) | 15.0 - 17.0 |
| Iron (Fe) | ≤ 6.0 |
| Cobalt (Co) | ≤ 2.5 |
| Tungsten (W) | ≤ 4.0 |
| Carbon (C) | ≤ 0.10 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 0.5 |
| Sulfur (S) | ≤ 0.01 |
These values offer a general guideline. For specific applications
or precise compositions, consult with standards or suppliers.
