ISO9001 321SS Octagonal Ring Joint Gasket

ISO9001 321SS Octagonal Ring Joint Gasket

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Description

Stainless Steel: Seals Ring Api: Gasket
Wellhead: Ring Joint Gasket Raw Material: Carbon Stell
Material: Soft Iron Standard: API 6a
Industry: Oilfield And Gas Subsea: Gasket

High Light:321SS octagonal ring joint gasket, ISO9001 high pressure o rings, 321SS high pressure o rings

Ring-type joint (RTJ) gaskets are manufactured from metallic materials in compliance with American standard ASME B 16.20 and the API specification. Detailed monitoring of every manufacturing step guarantees that the sealing rings offer the necessary surface hardness. This creates a functional seal without damage to the flanges. This gasket type is used successfully in downstream refinery applications, for example. RTJ gaskets are also commonly used in high-pressure valves and the associated pipe connections and in pressure vessel joints.

 

Style R ring type joints are manufactured on oval (2962/R) and octagonal profiles (2961/R).
Both styles are interchangeable in the modern flat bottomed groove.
Octagonal profile joints are interchangeable on flat bottomes groove flanges which have a 23 degree angle groove wall

Advantages

  • Metal-to-metal contact creates a reliable seal
  • Suitable for extreme pressure and temperature requirements
  • Certified quality (including surface hardness)

we supplies ring joint gaskets (RTJ Gasket) with the hardness numbers as follows:

GASKET MATERIALS BRINELL HARDNESS NUMBER (max) ROCKWELL HARDNESS NUMBER (max) IDENTIFICATION
Soft iron 90 56 D
Low carbon steel 120 68 S
4-6% Chrome 1/2% molybdenum 130 72 F5
304 Stainless Steel 160 83 S304
316 Stainless Steel 160 83 S316
347 Stainless Steel 160 83 S347

 

Common Materials
Material HB Hardness Temperature Limitations Identification
Soft Iron 90 -60 to +400 °C D
Low carbon steel 120 -40 to +500°C S
4%-6% Cr ½% Mo:F5 130 -125 to +500°C F5
Stainless steel 304/304L 160 -250 to +650°C S304 or 304L
Stainless steel 316/316L 160 -196 to +800°C S316 or 316L
Stainless steel 321 160 -250 to +870°C S321
Stainless steel 347 160 -250 to +870°C S347
Stainless steel 410 170 -20 to +500°C S410
Inconel 625 1000°C 625
Incoloy 825 1000°C 825
Hastelloy C-276 1000°C C-276
Duplex 800°C S31803
Titanium 540°C TI

We specializes in ring joint gasket, including ring gasket in R, RX, BX, IX types, lens gasket, weld ring gasket and bonnet gasket(according to client’s drawing). The metal gasket designed for use in high pressure, high temperature application necessitated the need for a high integrity seal. Our products are widely used in flat gate valve, Christmas tree, pipeline fittings, flange, high pressure vessel, oil &gas industry, wellhead assembly, petrochemical industry and the like.

 

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