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Brand Name : | JINGWEI |
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Wenzhou, Zhejiang, China
Product description
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.
Ring type joint gaskets(RTJs) are designed for high pressure applications. They are available in a variety of forms to suit different flange formats . RTJs can be used for very high and/or fluctuating pressures (up to 1500 bar), depending on the profile selected. Material selection determines use for high temperatures (up to i000°C) and in aggressive media. To ensure proper sealing the surfaces of contact between the gaskets and flange have to be carefully processed. The small sealing area and high contact pressure results in excellent sealability.
Style BX
Additionally: IDT Profile Overview | RJ Series
Materials
Dimensions following API Std 6 A for API 6BX-flanges
Because Ring Joint gaskets are used in extreme operating condi-tions, it is of utmost importance to select the most suitable, metallic material. In addition to pressure and temperature, the resistance towards the conveyed media has to be con¬sidered. The hardness of the gaskets should usually be lower than that of the flange material in order to prevent mechani¬cal damage to the flange.
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
Wenzhou, Zhejiang, China
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