Alloy 800 800H800HT(UNS N08800) Nickel Alloy Steel Blind Flange

Key Advantages
  • Wide Range of Industrial Steel Materials
  • Reliable Global Supply and Fast Delivery
  • Strict Quality Control and Certified Materials
  • Customized Solutions for Industrial Applications
  • Professional Service with Long-Term Partnership

Product Overview

Our specialized range of Alloy 800 / 800H / 800HT (UNS N08800) blind flanges is engineered to provide robust and reliable closure solutions for piping systems, pressure vessels, and valve openings operating in high-temperature and corrosive environments. Manufactured to international standards, these blind flanges leverage the unique properties of the Alloy 800 series—excellent resistance to oxidation, carburization, and sulfidation, combined with high creep rupture strength at elevated temperatures. Ideal for applications where future system access is required or for terminating piping runs, these flanges ensure leak-proof sealing and long-term durability in industries such as heat treating equipment, chemical and petrochemical processing, power generation (including nuclear), and industrial furnaces.

 

Product Range & Dimensions (Blind Flanges)

Our Alloy 800/800H/800HT blind flanges are available in a comprehensive range of sizes, pressure classes, and facing finishes to meet diverse project requirements:

 

Facing Finishes: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)

Size Range: Nominal Diameter: 1/2″ to 48″ (DN15 to DN1200)

Pressure Classes: 150#, 300#, 600#, 900#, 1500#, 2500# (PN16 to PN420)

 

OEM & Custom Services

We recognize that critical high-temperature applications often require specialized solutions. Our OEM customization services allow us to tailor Alloy 800 series blind flanges to your exact specifications:

 

Special Facing Finishes: Precision-machined custom RTJ grooves, special serrated finishes, or smooth finishes engineered to meet specific gasket requirements for high-integrity sealing.

 

OEM & Custom Services / OEM

We understand that standard catalogs cannot cover all project needs. Our OEM customization services allow you to tailor nickel alloy flanges to your exact specifications:

Special Facing Finishes:

Custom RTG grooves, special serrated finishes, or smooth finishes as per specific gasket requirements.

Marking:

Laser marking or low-stress stamping with your logo, alloy grade, heat number, pressure class, and specification details. Low-stress stamping is critical for nickel alloys to prevent stress concentration points.

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