Alloy 20 Valves
Alloy 20, also known as Carpenter® 20, UNS N08020, and CN7M, is a high-performance austenitic stainless steel designed to offer superior resistance to a wide range of corrosive environments. When used in valve manufacturing, Alloy 20 provides exceptional durability and reliability, making it the material of choice for demanding applications in the chemical and pharmaceutical industries.

We Specialize in Locating Hard-to-Find Valves and Offer Expedited Shipping
Key Features and Benefits
Superior Corrosion Resistance
- Exceptional Resistance to Acidic Environments: Alloy 20 valves excel in resisting sulfuric acid, phosphoric acid, nitric acid, and chlorides, ensuring long-lasting performance in chemical processing and storage applications.
- Minimized Stress Corrosion Cracking: The unique composition of Alloy 20 reduces susceptibility to stress corrosion cracking, providing dependable performance in harsh conditions.
- Resistance to Sodium Hydroxide (Caustic Soda): Alloy 20's composition also offers excellent resistance to sodium hydroxide, making it suitable for environments involving caustic soda solutions.
Versatility and Reliability
- High Mechanical Strength: With a tensile strength of 600-800 MPa, Alloy 20 valves offer robust performance and durability, even in high-pressure environments.
- Excellent Fabricability: Alloy 20 can be easily machined and fabricated into various valve designs, allowing for versatile and efficient manufacturing processes.
Compliance and Standards
- Industry Standards: Alloy 20 valves meet various international standards, including ASTM B463, ASME SB-463, and ISO 6207, ensuring reliability and quality in every application.
Applications
Alloy 20's unique properties make it an ideal material for a wide range of valve applications:
- Chemical Processing: Valves for acid production, transfer, and storage systems.
- Pharmaceutical Industry: Valves for production and storage equipment.
- Handling Caustic Soda: Valves designed for the safe and efficient handling of sodium hydroxide (caustic soda) solutions.
Alloy 20 is particularly suitable for various types of valves, including:
- Gate Valves: Ideal for on/off control with minimal pressure drop.
- Globe Valves: Excellent for throttling flow control.
- Check Valves: Prevents backflow and ensures one-way flow.
- Plug Valves: Offers robust and reliable flow control in demanding environments.
Contact Us
Ready to experience the unmatched performance of Alloy 20 valves? Contact Bayou Industrial Sales today to discuss your specific requirements and discover how Alloy 20 valves can enhance your operations.
Other Materials

304SS
We maintain a large inventory of 304SS and 304L SS valves.

Nickel
Nickel alloys provide exceptional durability and reliability.
Contact Our Team of Experts Today
24 hours a day, 7 days a week we are here to assist with your valve, automation, instrumentation and industrial supply needs.
CONTACT US
REQUEST A QUOTE