321 Stainless Steel Flanges

321 Stainless Steel Flanges

Vandan Alloys manufactures, supplies, stocks and exports 321 Stainless Steel Flanges for industrial piping and equipment applications where stainless steel components are required for elevated-temperature service and demanding operating conditions.

321 stainless steel is a titanium-stabilized grade that is commonly specified for applications involving elevated temperatures and welded fabrication. Vandan Alloys supplies 321 flanges in multiple designs, sizes, pressure classes and facing configurations according to applicable standards and customer requirements.

321 Stainless Steel Flange Types

Our 321 flange range includes:

321 Weld Neck Flanges

321 WNRF Flanges

321 Blind Flanges

321 Slip-On Flanges

321 Socket Weld Flanges

321 Threaded Flanges

321 Lap Joint Flanges

321 Orifice Flanges

321 Long Weld Neck Flanges

321 Plate Flanges

321 RTJ Flanges

Custom 321 Stainless Steel Flanges as per Drawing

Product Specifications

Material: Stainless Steel 321

Material Grade: ASTM A182 F321

Stainless Steel Grade: UNS S32100

Applicable Standards: ASME B16.5, ASME B16.47 and other applicable standards

Pressure Classes: Class 150, 300, 600, 900, 1500 and 2500

Size Range: 1/2“ to 24” and larger sizes where applicable

Facing: Raised Face (RF), Flat Face (FF) and Ring Type Joint (RTJ)

Flange Designs: Weld Neck, WNRF, Blind, Slip-On, Socket Weld, Threaded, Lap Joint, Orifice, Long Weld Neck and Plate Flanges

Inspection: Visual, dimensional and additional inspection according to customer requirements

Documentation: EN 10204 Type 3.1 Material Test Certificate available

Special Requirements: Custom bore, drilling, dimensions, facing and special flange configurations can be supplied according to approved drawings and technical specifications.

321 WNRF Flanges

321 WNRF Flanges are used for welded piping connections where a raised-face flange arrangement is required. The weld neck configuration provides a suitable connection for piping systems operating under demanding conditions.

Vandan Alloys can supply 321 WNRF flanges with different sizes, pressure classes, bore configurations and drilling patterns according to the applicable standard.

321 Blind Flanges

321 Blind Flanges are used for closing pipe ends, isolating piping sections and blanking equipment connections.

They can be supplied with RF, FF or RTJ facing and with the required bolt-hole arrangement and pressure rating.

321 Slip-On Flanges

321 Slip-On Flanges are installed over the pipe and welded into position. They are suitable for selected industrial piping and fabrication applications.

Different sizes, pressure classes, drilling arrangements and face configurations can be supplied according to the project requirement.

321 Socket Weld Flanges

321 Socket Weld Flanges are designed for suitable smaller-diameter piping systems where the pipe is inserted into the flange socket and welded.

Vandan Alloys can supply socket weld configurations according to the required size, pressure class and applicable dimensional standard.

Sizes and Pressure Classes

321 stainless steel flanges are available in commonly required sizes:

NPS: 1/2“, 3/4”, 1“, 1-1/2”, 2“, 3”, 4“, 6”, 8“, 10”, 12“, 14”, 16“, 18”, 20“, 24” and larger sizes where applicable.

Pressure Classes: 150, 300, 600, 900, 1500 and 2500.

Large-diameter, special-bore and customized flange requirements can be reviewed against customer drawings and technical specifications.

Applications of 321 Stainless Steel Flanges

321 stainless steel flanges are commonly used in:

Heat and Thermal Processing Equipment

Chemical Processing

Petrochemical Plants

Refinery Piping

Power Generation

High-Temperature Piping

Exhaust and Process Systems

Heat Exchanger Connections

Industrial Equipment

Pressure Piping

Engineering and Fabrication Projects

ASTM A182 F321 Flanges

ASTM A182 F321 Flanges are forged stainless steel components manufactured for pressure-containing applications.

The titanium-stabilized composition of Grade 321 makes it a commonly specified stainless steel option for certain elevated-temperature and welded applications.

Material selection should be based on the applicable design code, operating conditions and customer specification.

Quality & Inspection

Vandan Alloys can provide inspection and material documentation according to project requirements.

Available documentation may include:

Material Test Certificate

EN 10204 Type 3.1 Certificate

Chemical Composition

Mechanical Test Results

Dimensional Inspection

Visual Inspection

Additional Testing as Required

Third-Party Inspection where specified

Export Packing Documentation

Why Choose Vandan Alloys?

Vandan Alloys supplies 321 stainless steel flanges for standard and customized industrial requirements.

Our capabilities include:

ASTM A182 F321 Flanges

UNS S32100 Flanges

Multiple flange configurations

Various pressure classes

Standard and custom dimensions

Inspection and certification support

Export-quality packing

International supply

Manufacturer, Supplier, Stockist & Exporter

Request a Quote

For a quotation, send us the flange type, NPS size, pressure class, material grade, facing, bore, quantity and applicable standard.

We can review your requirement and provide a suitable 321 stainless steel flange solution.

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321 Stainless Steel Flanges Manufacturer & Exporter | ASTM A182 F321 | Vandan Alloys

Meta Description

Vandan Alloys manufactures, supplies and exports 321 stainless steel flanges including WNRF, blind, slip-on, socket weld and other flange types in various sizes and pressure classes.

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