Nickel 200 Oval Ring Joint Gasket

Place of Origin china
Brand Name Wenzhou Jingwei Seal Technology Co., Ltd.
Certification ISO9001
Model Number oval ring joint gasket
Minimum Order Quantity 10
Price Negotiable
Packaging Details Bulk packaged or Customize
Delivery Time 7 work days
Supply Ability 100000pcs/month
Product Details
Carbon Steel Gasket Stainless Steel Seal
Metal Seals Ring Soft Iron Gasket
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Nickel 200 oval ring joint gasket


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Product Description

We are engaged in supplying high quality Ring Joint Gaskets. These are primarily used by the oil, gas, petrochemical and offshore industries; they are also commonly used on valve, pipe work assemblies and with some integrity vessel joints. Ring joint gaskets are specifically designed accurately to form a metal to metal seal with the flanges, primarily used to seal flanged connections subject to high pressures and temperatures. The cross-sections are designed to concentrate the bolt load over a small area to produce a high seating stress; gasket metal should always be softer than the mating flanges. To create a seal, high seating stressed has to be formed. The seal of the RX' and 'BX' gaskets are pressure activated by sealed media, which is mainly responsible for the improved efficiency of the seal as the internal pressure of the system increases.
We can offer more than 30 kinds of materials, such as 321SS, 347SS, 316SS, 304SS, Inconel 625, Monel 400, INCOLY 825, Nickel 200, Duplex F44, soft iron, low carbon steel and so on. We have over 10 years experience in export business. Our products are sold to Southeast Asia, Middle East, Europe and America and well appreciated by our clients.

Oval cross-section Industry Ring Joint Gaskets and Octagonal cross section Ring Joint Gaskets are used in pressures up to 10,000 psi

The hardness of the ring gasket should always be 30% lesser than the hardness of the flanges to prevent flange deformation

Dimensions and Tolerances for Ring Joint Gaskets and Grooves are covered in API 6A and ASME B16.20.

We stock a wide range of sizes and materials ready for immediate shipment from Ring Numbers R11 to R105.

Ring joint gasket is machined from solid metal in a variety of shapes according to API 6A & ASME B16.20 standards,it’s designed for high pressure ,high temperature or highly corrosive applications by selecting the most suitable material and shape. It is designed to with stand exceptionally high assembly loads over a small area, thus producing high seating stresses.Ring type Joint Gaskets are designed to seal by "initial line contact" or wedging action between the mating flange and the gasket. By applying pressure on the seal interface through bolt force, the softer metal of the gasket flows into the imperfections of the harder flange material, creating a very tight and efficient seal.

The contact face is in oval shape. It provides a high reliabililty seal. These gaskets are manufactured in accordance to API 6A of ASME B16.20 to suit API613 and ASME/ANSI B16.5 Flanges. Fits the round and flat bottom ring groove flange

Nickel 200 Oval Ring Joint Gasket 0

As a result of metal to metal sealing media they are made to be free of indentations, tool marks etc and have a surface finish of maximum,


· R, RX – 63 microinches Ra (1.6 micrometer Ra).

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





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
Material DIN/EN AISI/ASTM Identification Max. Hardness HB [Brinell]
X5CrNiMo17-12-2 1.4401 316 S316 160
X6CrNiNb18-10 1.4550 347 S347 160
X6CrNiMoTH 7-12-2 1.4571 316TÌ S316TI 160
X2CrNiMo17-12-2 1.4404 316L S316 160
12CrMo195 1.7362 A182 F5 130
Soft iron 1.1003 Soft iron D 90


Material Identification Material No. Hardness Temperature (oC)
Min Max.
Soft Iron D 90 -40 500
Low Carbon Steel S 120 -40 500
Stainless Steel 304 304SS 1.4301 160 -250 550
Stainless Steel 304L 304L SS 1.4306 160 -250 550
Stainless Steel 316 316SS 1.4401 160 -100 550
Stainless Steel 316L 316L SS 1.4404 160 -100 550
Stainless Steel 321 321SS 1.4541 160 -250 550
Stainless Steel 347 347SS 1.4450 160 -250 500
Stainless Steel 410 410SS 1.4000 170 -20 850
Aluminum Al 3.0255 30 -250 300
Copper Cu 2.0090 ca.80 -250 400
Brass CuZn37 2.0321 ca.60 -100 350
Nickel 200 Ni200 2.4066 110 -250 600
Monel 400 400 2.4360 150 -125 600
Inconel 600 600 2.4816 150 -100 950
Hastelloy B2 B2 2.4617 230 -200 450
Titanium Ti 3.7025 ca.215 -250 350