Stainless Steel 321 / 321H Flanges

ANSI B16.5 SS 321 Pipe Flanges, SS 321 Orifice Flange, UNS S32100 Pipe Flanges, AISI 321 Flanges, SS 321H Ring / Spacer, Steel 321 Slip On Flanges, SS 321H Weld Neck Pipe Flanges, SS 321H Spectacle Blind Flanges, Stainless Steel 321 RTJ Flange, Stainless Steel 321H Nippolet Flanges, ASTM A182 SS F321 Threaded Flanges, SS Grade F321H Forged Flanges, ASME SA182 SS 321H Lap Joint Flange, SS Werkstoff Nr. 1.4541 / 1.4878 Socket Weld Flanges Suppliers in India.

National India. Co (India) is a standout amongst the most prominent Stainless Steel 321/321H Flanges Manufacturer, Suppliers & Exporter in India. We are supplying flanges in almost everywhere India and further trading it in worldwide nations such as US, UK, Saudi Arabia, Dubai, Singapore, Thailand, etc. We uses most recent technology and well maintained machinery to produce stainless steel flanges.

The SS 321/321H Flanges are manufactured utilizing optimum quality material and along these ensure excellent durability and corrosion resistance. The 321/321H Stainless Steel Flanges are utilized in an assortment of industrial purposes and are mostly used to connect pipes.

Our offered range of Alloy 321/321H Flanges are broadly utilized in different application sectors like power generation, petrochemical plants, refineries, oil and gas transportation, waste water treatment plants and so forth. We offer these steel flanges available in different shapes, size, dimensions and specification according to our customer prerequisite.

You can get the exact material according to your requirement at the least possible price. We also provide Reworks, FOB, CFR, CIF, and door to door delivery prices. The materials we offer are completely verifiable, right from raw material test certificate to the final dimensional statement. E-guarantee to give a response within 24hours working hours (usually in the same hour).You can also get stock alternatives, mill deliveries with minimizing manufacturing time. We are completely dedicated to our customers. If it will not possible to meet the customer requirements after examining all options, we will not mislead by making false promises which will create good customer relations.

Specifications:ASTM A182 / ASME SA182
Size:1/2″ (15 NB) to 48″ (1200NB)
:ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure:150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard:ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Types of Stainless Steel 321/321H Flanges:

Stainless Steel 321/321H Slip On Flanges:SS 321/321H Raised Face Slip On Flanges
321/321H SS Slip On Plate Flanges
321/321H Stainless Steel Slip On Flanges
UNS S32100/S32109 Slip On Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Slip On Flanges
ASTM A182 321/321H Slip On Flanges
Stainless Steel 
321/321H Weld Neck Flanges
:SS 321/321H Raised Face Weld Neck Flanges
321/321H SS Weld Neck Flanges
321/321H Stainless Steel Weld Neck Flanges
UNS S32100/S32109 Weld Neck Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Weld Neck Flanges
ASTM A182 321/321H Weld Neck Flanges
Stainless Steel 
321/321H Blind Flanges
:SS 321/321H Raised Face Blind Flanges
321/321H SS Blind Flanges
321/321H Stainless Steel Blind Flanges
UNS S32100/S32109 Blind Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Blind Flanges
ASTM A182 321/321H Blind Flanges
Stainless Steel 
321/321H Orifice Flanges
:SS 321/321H Orifice Flanges
321/321H SS Orifice Flanges
321/321H Stainless Steel Orifice Flanges
UNS S32100/S32109 Blind Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Orifice Flanges
ASTM A182 321/321H Orifice Flanges
Stainless Steel 
321/321H Socket weld Flanges
:SS 321/321H Socket Weld Flanges
321/321H SS Socket Weld Flanges
321/321H Stainless Steel Socket Weld Flanges
UNS S32100/S32109 Socket Weld Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Socket Weld Flanges
ASTM A182 321/321H Socket Weld Flanges
Stainless Steel 
321/321H Threaded Flanges
:SS 321/321H Threaded Flanges
321/321H SS Threaded Weld Flanges
321/321H Stainless Steel Threaded Flanges
UNS S32100/S32109 Threaded Flanges
SS WERKSTOFF NR. 1.4541/1.4878 Threaded Flanges
ASTM A182 321/321H Threaded Flanges
Stainless Steel 
321/321H Long Weld Neck Flanges

SS 321/321H Long weld Neck Flanges
321/321H SS Long weld Neck Flanges
321/321H Stainless Steel Long weld Neck Flanges
UNS S32100/S32109 Long weld Neck Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Long weld Neck Flanges
ASTM A182 321/321H Long weld Neck Flanges

Stainless Steel 
321/321H RJT Flanges
:SS 321/321H Ring Type Joint Flanges
321/321H SS Ring Type Joint Flanges
321/321H Stainless Steel Ring Type Joint Flanges
UNS S32100/S32109 Ring Type Joint Flanges
SS WERKSTOFF NR. 1.4541/1.4878  RJT Flanges
ASTM A182 321/321H Ring Type Joint Flanges
Stainless Steel 
321/321H Reducing Flanges
:SS 321/321H Reducing Flanges
321/321H SS Reducing Flanges
321/321H Stainless Steel Reducing Flanges
UNS S32100/S32109 Reducing Flanges
SS WERKSTOFF NR. 1.4541/1.4878  Reducing Flanges
ASTM A182 321/321H Reducing Flanges
Stainless Steel 
321/321H Forged Flanges
:SS 321/321H Forged Flanges
321/321H SS Forged Flanges
321/321H Stainless Steel Forged Flanges
UNS S32100/S32109 Forged Flanges
SS WERKSTOFF NR. 1.4541/1.4878 Forged Flanges
ASTM A182 321/321H Forged Flanges
  • Industrial Fabrication
  • Equipment and Appliances
  • Heat Exchanges
  • Architectural Railing
  • Food processing equipment
  • Pharmaceutical and chemical process equipment
  • Heat exchangers
  • Textile
  • Springs
  • Chemical Containers
  • Dyeing Industries
  • Nuts ,Bolts , Fasteners and other in marine Environment
  • Automotive and Aerospace structural use

Chemical Composition of SS 321 / 321H Flanges:

SS 3210.08 max2.0 max1.0 max0.045 max0.030 max17.00 – 19.000.10 max9.00 – 12.005(C+N) – 0.70 max
SS 321H0.04 – 0.102.0 max1.0 max0.045 max0.030 max17.00 – 19.000.10 max9.00 – 12.004(C+N) – 0.70 max

Mechanical Properties of SS 321 / 321H Flanges:

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
8.0 g/cm31457 °C (2650 °F)Psi – 75000 , MPa – 515Psi – 30000 , MPa – 2050.35
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