BLRTJ Flange

• Design: A BLRTJ Flange (RJF) is a type of flange that utilizes a ring joint gasket for sealing. The flange has a groove or recess into which a metal ring gasket is placed. This design provides a high-pressure, high-temperature seal. The ring joint gasket typically has a semi-circular or oval cross-section and fits into the flange groove to ensure a leak-tight seal.


• Applications: Commonly used in high-pressure and high-temperature applications where a reliable seal is critical, such as in oil and gas, petrochemical, and power generation industries. BLRTJ Flanges are suitable for services where conventional gaskets may not provide adequate sealing.


• Installation: The ring joint gasket is placed into the groove of the flange, and then the flange is bolted to the mating flange or fitting. The metal gasket is compressed between the two flanges to create a tight seal.

Chemical and Mechanical Properties Table

Material	Grade	Chemical Composition (wt%)	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
Carbon Steel	ASTM A105	C: 0.35 max, Mn: 0.60-0.90, P: 0.035 max, S: 0.035 max	205 - 250	420 - 550	20
Stainless Steel	ASTM A182 F304	C: 0.08 max, Cr: 18.0-20.0, Ni: 8.0-10.5	205 - 310	510 - 720	40
Stainless Steel	ASTM A182 F316	C: 0.08 max, Cr: 16.0-18.0, Ni: 10.0-14.0, Mo: 2.0-3.0	205 - 310	510 - 720	40
Alloy Steel	ASTM A234 WP22	C: 0.12-0.20, Cr: 1.0-1.5, Mo: 0.4-0.6	205 - 275	485 - 620	20
High-Temperature Alloy	ASTM A182 F91	C: 0.05-0.15, Cr: 8.0-9.5, Mo: 0.85-1.05	415 - 485	620 - 825	20

Notes:

• Chemical Composition: Indicates the elements present in the material, such as chromium and nickel, which contribute to properties like corrosion resistance.


• Yield Strength: The stress at which the material begins to deform permanently.


• Tensile Strength: The maximum stress the material can withstand while being stretched or pulled before breaking.


• Elongation: Represents the ductility of the material, indicating how much it can stretch before breaking.