1. Question: What is the chemical composition of Hastelloy C-276 and G30 bars and plates?
Answer:
Hastelloy C-276 contains roughly 57% nickel, 16% molybdenum, 16% chromium, and small amounts of iron, cobalt, and tungsten. It offers excellent resistance to oxidizing and reducing environments.
Hastelloy G30 is primarily nickel-chromium-molybdenum, designed for strong resistance to sulfuric acid at high temperatures.
2. Question: What applications are Hastelloy C-276 and G30 bars and plates used for?
Answer: They are widely used in chemical processing, pollution control, heat exchangers, marine engineering, and environments with strong acids or oxidizing agents. G30 is particularly suited for sulfuric acid equipment.
3. Question: What forms and sizes are available for Hastelloy C-276 and G30?
Answer: Available forms include:
Bars: Round, hexagonal, or square bars
Plates/Sheets: Various thicknesses up to several hundred millimeters
Standard or custom sizes can be provided depending on the supplier.
4. Question: How does the nickel content affect the price of Hastelloy bars and plates?
Answer: Nickel is the main alloying element, and its high market price significantly influences the cost of Hastelloy. Alloys with higher nickel and molybdenum content (like C-276) are more expensive than lower-alloyed versions (like G30).
5. Question: What mechanical and corrosion properties should be expected from Hastelloy C-276 and G30?
Answer:
C-276: Excellent resistance to pitting, stress-corrosion cracking, and oxidizing/reducing agents; good mechanical strength at high temperatures.
G30: Excellent resistance to sulfuric acid and chloride environments; moderate mechanical strength; suitable for fabrication into plates, bars, and custom components.
