Below is a breakdown of the key advantages of using a Hastelloy chamber in such furnaces:

1. Exceptional Corrosion Resistance

Controlled atmosphere furnaces often use reactive gases such as hydrogen, ammonia, and chlorinated compounds. In these environments, ordinary materials may degrade rapidly.

Hastelloy resists oxidation, chloride-induced corrosion, and acidic gas attack far better than standard stainless steel.
This protects the chamber from pitting, cracking, and metal dusting, thereby maintaining the purity of the furnace atmosphere and the integrity of the product.
 

2. Chemical Compatibility with Reactive Gases

Processes like reduction, carburizing, and nitriding can chemically attack most metal surfaces. Hastelloy, however, offers excellent chemical stability.

Inert to most furnace gases, it prevents unwanted reactions.
Helps preserve gas purity.
Reduces the risk of product contamination.
Extends chamber lifespan, especially in chemically aggressive environments.
 

3. Chemical Compatibility with Reactive Gases

Controlled atmosphere furnaces often operate at temperatures exceeding 1000°C (1830°F).

Hastelloy maintains mechanical strength and resists creep deformation under prolonged thermal stress.
Ensures the chamber retains its structural integrity, preventing warping or leakage over time.

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