These SS 321 Socket Weld Flanges are accepted by clients in various spheres of the industries ranging from basic industries such as Sugar, Paper, Textile, Dairy, Engineering to more complex such as Oil & Gas, Petrochemical, Chemical & Fertilizers, Power Generation and Nuclear Industries. This titanium comportment of our Stainless Steel 321H Threaded Flanges are alleviated in contradiction of carbide precipitation and considered for process within the destructive heat array where carbide precipitation progresses. Titanium is added to the composition of these SS 321 Weld Neck Flangesto suppress grain boundary chromium carbide precipitation and reduce susceptibility to intergranular corrosion. This titanium addition in Stainless Steel 321H Blind Raised Flanges reduces or prevents carbide precipitation during welding and in 800 Degree F – 1500 Degree F service. Stainless Steel 321 Slip On Raised Flanges is almost same as Grade 304 Welded Pipes; however, covers an addition of Titanium greater than the content of carbon.
Stainless Steel 321H Flanges is a steadied steel that provides as its prime benefit of an outstanding confrontation to inter - granular erosion ensuing acquaintance to heats in chromium carbide precipitation array from 800 Degree F to 1500 Degree F. SS 321 Flanges are the basic austenitic 18/8 steel (Grade 304) stabilised by Titanium or Niobium additions. We are a known stockist of SS 321 / 321H Flanges, which are accredited to internationally approved quality standards for applications.
Equivalent Grades for 321/321H SS Flanges
Grade | North America | France | European | Japan | Russia | European | Italy | Austria | Sweden |
UNS | AFNOR | W.N. | JIS | GOST | EN | UNI | ONORM | SIS | |
SS 321 | S32100 | – | 1.4541 | SUS 321 | – | X6CrNiTi18-10 | – | – | – |
321/321H Stainless Steel Flanges Chemical Composition
Grade | C | Mn | Si | P | S | Cr | N | Ni | Tie |
SS TP 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
SS 321/321H Flanges Mechanical Properties
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
NOTE : OTHER SIZES AND GRADES ARE AVAILABLE UPON REQUEST
SS Flanges are available in different grades and standards. Some of the standard features these are made available in include
Specifications : ASTM A182 / A240, ASME SA182 / SA240
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc.
Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size : 1/2" (15 NB) to 48" (1200NB)
Pressure Ratings : Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
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