Stainless Steel 321H Flanges

About Stainless Steel 321H Flanges

These stainless steel flanges are fillet welded to a position and are ideal for low-pressure applications. Blind Flanges: The flanges are designed without a bore, and are used to seal vessel openings or piping systems. These flanges are ideal for piping systems or vessels that require regular inspection.

Versatile End Types and Connection Methods

Stainless Steel 321H flanges are available in a variety of end types such as Raised Face, Flat Face, and Ring Type Joint, catering to diverse industrial requirements. The connection methods-including Slip On, Weld Neck, Blind, Socket Weld, Threaded, and Lap Joint-offer flexibility for integration into various piping systems, whether welded or bolted, ensuring a secure and customized fit for every application.


Superior Mechanical and Physical Properties

With a high tensile strength of 515 MPa, yield strength of 205 MPa, and a minimum elongation of 40%, 321H flanges offer durability and resistance to deformation. Operating efficiently at temperatures up to 870C (1600F), their density of 7.9 g/cm3 and Rockwell hardness of 160 HB support demanding environments where robustness is essential, such as in oil & gas and power generation sectors.


Reliable Protection and Quality Assurance

Each Stainless Steel 321H flange is finished with an anti-rust protective coating and is carefully packaged using wooden boxes, bubble wrap, and pallets. The flanges are precisely stamped with grade, size, and manufacturer information, meeting standards like ASME, ASTM, ANSI, DIN, JIS, BS, and EN. This attention to detail ensures authenticity, traceability, and optimal product performance from manufacturer to end user.