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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: Rilson
  • Model Number: RS2
  • Material: Metal, sort iron,low carbon steel,ss304,ss316
  • Shape: Ring Gasket
  • Standard or Nonstandard: Standard
  • Certificate: API 6A,IOS9001
  • Type: R,RX,BX
  • Standard: API 6A,ASME/ANSI B16.5,BS1560

Packaging & Delivery

Packaging Details Wooden case
Delivery Time 10-15days


RTJ gaskets are manufactured in accordance with API-6A and ASME B16.20 specifications and come in four basic profiles.

Product Description

  Ring Joint Gaskets: 

Ring type gaskets are primarily used in the Oil, Gas and Petrochemical industries to seal flanged connections subject to high pressure and temperatures, and form a metal to metal seal with the flanges. The gaskets fully comply with the ASME B16.20 standard and the API spec 6A requirements (where applicable). All gaskets complying to API Standard 6A are marked with API Monogram Licence No as per API-6A (PSL4). The gaskets meet the rigid quality requirements for Ring Joint Gaskets set by the American Petroleum Institute (API). 

Materials includes Soft Iron, Low Carbon Steel, F5 Alloy Steel, 410 Alloy Steel, SS304, SS304L, SS316, SS316L, SS347, SS321, Nickel Alloy 625 & 825, Duplex, Super Duplex, Monel & other materials available. 

Standard: Rilson RTJ gaskets are manufactured in accordance with API-6A and ASME B16.20 specifications and come in four basic profiles: 

R type (oval and octagonal) solid sections to fit standard ring joint flanges with trapezoidal grooves. 
Types RX and BX with complex bevelled edge sections for wellhead pressures exceeding 700bar 

These basic shapes are used in a variety of applications with pressures up to 20, 000 PSI. The dimensions are standardized and require specially grooved flanges by where a corresponding "R" or "BX" number is assigned for pipe size and pressure class for gasket identification. 

Standard materials 
Soft iron. 
Low carbon steel. 
Alloy steels: F5, 410. 
Stainless steels: 304, 304L, 316, 316L, 321, 347.

Type Pressure Mpa 
Oval 70 
Octogonal 70 
Rx 70 
Bx 150 


Material Identification Max,Hard Temperature(°C) 
SoftIron D 90 540 
Low Carbon Steel S 120 540 
5Cr0.5Mo A182-F5 130 650 
SS304 SS304 160 800 
SS316 SS316 160 800 
SS316L SS316L 150 800 








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