ASTM A182 F904L Slip-On Raised Face Stainless Steel Flange High Molybdenum Super Austenitic for Chemical & Oil & Gas Equipment

ASTM A182 F904L Slip-On Raised Face Stainless Steel Flange High Molybdenum Super Austenitic for Chemical & Oil & Gas Equipment

Backed by 35 years of industrial expertise​ and a supply network spanning 85 countries, YUHONG Group specializes in engineering and manufacturing critical piping components for the world's most demanding sectors. We combine deep metallurgical knowledge with precision manufacturing to deliver flanges that excel in corrosive and high-stakes environments, such as chemical processing and oil & gas production. Our ASTM A182 F904L Super Austenitic Stainless Steel Slip-On Raised Face Flanges​ are a testament to this commitment—designed with high molybdenum content for superior chloride and acid resistance, and produced under strict quality controls to meet global standards. When you partner with YUHONG, you gain more than a component; you gain a reliable, long-term solution backed by decades of proven performance.

Heat Treatment Requirements for Grade F904L (UNS N08904)

Chemical Composition of Grade 904L (UNS N08904)

Tensile and Hardness Requirements for Grade F904L (UNS N08904)

ASTM A182 F904L Slip-On Raised Face Stainless Steel Flange - Key Application Advantages

1. Excellent Corrosion Resistance
F904L is a high-molybdenum super austenitic stainless steel, offering superior performance in environments containing chlorides, acids, and mixed oxidising-reducing media. It is ideal for highly corrosive applications in chemical processing, oil & gas, and seawater systems.
2. High Temperature & Pressure Capability
The material maintains good strength and stability across a wide temperature range. Combined with the reliable seal of the Raised Face (RF) design, it ensures safe, long-term performance in demanding high-pressure piping services.
3 . Cost-Effectiveness & Long Service Life
While the initial investment is higher than standard austenitic steels, its exceptional corrosion and stress corrosion cracking resistance significantly reduces maintenance frequency and replacement costs, offering a lower total cost of ownership over its lifecycle.
4. Easy Installation and Reliable Sealing
The Slip-On (SO) design allows for easy alignment during installation. The Raised Face (RF) is compatible with various gaskets, providing a tight seal and making it suitable for piping sections that require frequent maintenance or inspection.
5 . Global Standard Compliance & Interchangeability
Manufactured in strict accordance with ASTM A182, with dimensions conforming to ASME B16.5 and other major international flange standards. This ensures easy specification, procurement, and integration into global projects.