Table Of Content
What is a flange?
A flange is a ring that is made up of steel designed to connect sections of pipes mechanically. It can be connected externally as well as internally. It is helpful to increase the strength and for easy attachment with another object. SS 309 flanges are rings that are made of stainless steel grade SS 309. They are used to join valves, pipes, and many other equipment types used in pipework systems.
What are the different forms of SS 309 Flanges?
These flanges are made readily available in the forms of stainless steel slip-on flanges, SS 309 lap joint flanges and SS 309H weld neck flanges. They are quickly turned into different sizes with different thicknesses depending on the functions.
Advantages of using SS 309/ SS 309H Flanges:
• SS 309 Flanges are known for their immense corrosion resistance ability.
• Their durability is also very high, which makes them widely used in many industries.
• The strength of these flanges are very high.
• They are used in high temperatures, which makes them useful in aircraft and annealing applications.
• Flanges are used in marine industries because they provide excellent resistance to the marine atmosphere.
• It is very cost-effective due to the high concentration of chromium and low percentage of nickel.
• SS 309 Flanges are more robust due to the higher carbon content present in them.
What is SS 309 / SS 309H?
SS 309 is high chromium steel with added nickel value, improving strength. In addition, it is enhanced with required corrosion and heat resistance in addition to oxidation resistance. In comparison, SS 309H is a higher carbon version to provide extra protection versus creep.
Where are SS 309 / SS 309H Flanges used?
These stainless steel flanges fin their use in various applications. Some of them are listed below.
• It is used in the power generation industry.
• Gas processing industries also make use of SS 309 flanges.
• They are popularly known for their contribution to the food processing industry.
• Seawater equipment are also made with the help of flanges.
• The other industries which use them are the pharmaceuticals industry, heat exchangers industry, sugar industry and oil drilling companies.
|Specifications||ASTM A182 / ASME SA182|
|Flange size range||1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000|
|Flanges Dimensions||ANSI/ ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.|
|Flanges Standard||ANSI Flanges, AWWA Flanges, ASME Flanges, BS 10 Table D Flanges, Table E Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges.|
|Pressure Class / Rating||Class 150 LBS, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.|
|Flange Connect Type/ Flange Face Type||Raised Face (RF), Ring Type Joint (RTJ), Large Male-Female (LMF), Flat Face (FF), Small Male-Female (SMF), Lap-Joint Face (LJF), Small Tongue, Large Tongue & Groove|
|Specialized manufacturer of||Weld Neck Ring Flanges (WNRF), Slip-On Ring Flanges (SORF), Blind Ring Flanges (BLRF), Socket Weld Ring Flanges (SWRF), Lap Joint Ring Flanges (LJRF), Ring Type Joint Flanges (RTJF), Large Diameter Flanges, Orifice Flanges|
|Test Certificates||EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc|
|Grade||Tensile Strengtd ksi (min)||Yield Strength 0.2% ksi (min)||Elongation %||Hardness (Brinell) max|
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