Stainless Steel 321 / 321H Flanges Manufacturers & Suppliers in India

Premium quality stainless steel 321 and 321H flanges are Supplied from India Tricon Steel & Alloys. These Products are integral to various industrial applications due to their exceptional properties and versatility.

These flanges are forged from an austenitic stainless steel alloy consisting primarily of chromium, nickel, and titanium. Adding titanium enhances their resistance to intergranular corrosion, making them suitable for high-temperature environments.

Table Of Content

What is Stainless Steel 321 Flanges
SS 321 Flanges Specifications
Stainless Steel 321H Flanges Equivalent Material
SS 321 Flanges Chemical Composition
321H Stainless Steel Flanges Mechanical Properties
Types Of Stainless Steel 321 Flanges
Application Industries Of SS 321H Flanges

The main feature of stainless steel 321H flanges is their exceptional corrosion resistance, especially against acidic and chloride-containing environments. This makes them ideal for chemical, petrochemical, pharmaceutical, and food industry applications. Moreover, these flanges exhibit excellent mechanical properties, including high tensile strength, excellent stiffness and exceptional formability for ease of manufacture and installation.

Stainless steel 321H flanges are commonly used in piping systems, where they play an important role in connecting pipes, valves, and so on. They are also used in aerospace engineering. Their resistance to high temperatures and hot environments makes them suitable for high-temperature and cryogenic applications.

Stainless Steel 321/321H Flanges adhere to ASTM A182 standards, featuring excellent high-temperature stability, and are suitable for applications in diverse industries, including chemical processing and aerospace engineering. To ensure the quality and reliability of SS 321 flanges, rigorous testing procedures are carried out during manufacture. These tests typically include non-destructive testing methods such as dimensional inspection, visual inspection, chemical analysis, mechanical testing, ultrasonic testing, radiographic testing, and dye penetration inspection. These tests help detect any defects or flaws in flanges to ensure the required standards and specifications are met.

SS 321 Flanges Specifications

Standard	ASTM A182 / ASME SA182
Dimensions	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Size	1/2" (15 NB) to 48" (1200NB), DN10~DN5000
Pressure Rating	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS	16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Flange Connection / Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe.
Types of Flanges	Threaded / Screwed / Forged / Plate
Coating	Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Test Of Flange	Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine.
Production Technique Used	Heat treated, Forged and Machined
Equipment	Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc.
Test Certificates	EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

321H Stainless Steel Flanges Manufacturing Process

Flange Forging

Compared to cast flanges, forged flanges typically contain less carbon and are less likely to corrode. Forgings have superior mechanical qualities, a thicker structure, and a more streamlined shape.

Heat Treatment

The flange is undergoing heat treatment; the forging process has the slowest total cooling pace, while the standardizing and reducing processes have faster cooling speeds. The flange is undergoing heat treatment; the forging process has the slowest total cooling pace, while the standardizing and reducing processes have faster cooling speeds.

Forging Rolling

Roll forging is a forging technique that shapes a metal object by using opposing rolls. Although roll forging employs rolls to accomplish the desired material deformation, it is categorized as a metal forging procedure rather than a rolling procedure.

Rust Prevention

For steel flanges, conventional rust protection treatments include hot dip galvanizing, electro galvanizing (cold), varnish paint coating, black paint coating, black phosphating treatment, yellow (golden) paint coating, etc.

Stainless Steel 321H Flanges Equivalent Material

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 321	1.4541	S32100	SUS 321	X6CrNiTi18-10
SS 321H	1.4878	S32109	SUS 321H	X12CrNiTi18-9

SS 321 Flanges Chemical Composition

Grade	C	Mn	Si	P	S	Cr	N	Ni	Ti
SS 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 321H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	0.10 max	9.00 – 12.00	4(C+N) – 0.70 max

321H Stainless Steel Flanges Mechanical Properties

Density	Melting Point	Tensilee Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1457 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Buy High Quality ASTM A182 321 Stainless Steel Flanges.

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Types Of Stainless Steel 321 Flanges

321 Stainless Steel Slip On Flanges

321H SS Weld Neck Flange

SS 321 Socket weld Flanges

Stainless Steel 321H Threaded Flanges

321 Stainless Steel Blind Flange

SS 321 Lap Joint Flanges

SS 321H Forged Flanges

SS 321 Spectacle Blind Flange

We also supply 321 Stainless Steel Flanges at the best price. You can check our latest 321H Stainless Steel Pipe Flanges price list. Contact Tricon Steel & Alloys today for a best offer & competitive quotation Of 321 Stainless Steel Flanges.

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