Stainless Steel 321 Threaded Flange Manufacturers in India

Sachiya Steel International Private Limited leads the market as India’s foremost manufacturer of Stainless Steel 321 Threaded Flanges. With a deep-rooted presence in the industry, we deliver flanges that meet global standards. Known for their durability and resistance to corrosion, our flanges perform exceptionally well in various industrial applications. We pride ourselves on tailoring our products to meet the specific needs of our customers.

Stainless Steel 321, a titanium-stabilized grade, excels in resisting intergranular corrosion and high temperatures. Threaded flanges made from this alloy are essential in industries like petrochemicals, oil and gas, and chemical processing, where both high strength and corrosion resistance are crucial.

Specifications Table for Stainless Steel 321 Threaded Flanges

Specification	Details
Grade	Stainless Steel 321
Standard	ASME B16.5, ANSI B16.5, EN 1092-1, DIN 2576
Size Range	1/2″ to 24″
Pressure Class	150#, 300#, 600#, 900#, 1500#, 2500#
Face Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Connection Type	Threaded
Surface Treatment	Rust Preventive Oil, Hot-Dip Galvanized, Electro Polished
End Connection	ANSI B1.20.1 (NPT Threads)
Applications	Petrochemical, Oil & Gas, Chemical Processing, Power Plants
Certification	ISO 9001:2015, PED 97/23/EC, API 6A
Packaging	Wooden Boxes, Pallets, Customized Packaging Available
Delivery Time	2-4 Weeks (Depending on Quantity and Customization)

Benefits of Stainless Steel 321 Threaded Flanges

Stainless Steel 321 Threaded Flanges offer distinct advantages. The titanium content in SS 321 prevents chromium carbide formation, ensuring corrosion resistance, even in high temperatures up to 900°C (1652°F). This makes it ideal for environments susceptible to sensitization, like welding or prolonged exposure to elevated temperatures.

The threaded connection type simplifies installation and removal, eliminating the need for welding. This feature makes it perfect for piping systems requiring frequent maintenance. With a broad range of sizes and pressure ratings, these flanges cater to diverse industry needs.

Price List for Stainless Steel 321 Threaded Flanges

Size (Inches)	Pressure Class	Face Type	Price per Unit (INR)	Availability
1/2″	150#	RF	450	In Stock
1″	150#	RF	650	In Stock
2″	300#	RF	950	In Stock
4″	600#	RF	1850	In Stock
6″	900#	RTJ	3250	In Stock
8″	1500#	FF	4650	In Stock
10″	2500#	RTJ	7850	In Stock
12″	150#	FF	10500	On Order
14″	300#	RF	14500	On Order
16″	600#	RTJ	20500	On Order
18″	900#	FF	26500	On Order
20″	1500#	RF	34500	On Order
24″	2500#	RTJ	45500	On Order

Key Applications of Stainless Steel 321 Threaded Flanges

Industries that deal with high temperatures and intergranular corrosion risks rely on Stainless Steel 321 Threaded Flanges. These flanges are critical in aerospace, thermal oxidizers, and chemical processing environments. Additionally, they are used in heat exchangers, exhaust manifolds, and expansion joints. The threaded design ensures easy installation and removal, reducing downtime and maintenance costs.

Chemical Composition of Stainless Steel 321

Element	Percentage (%)
Carbon (C)	Max 0.08
Manganese (Mn)	Max 2.00
Phosphorus (P)	Max 0.045
Sulfur (S)	Max 0.030
Silicon (Si)	Max 1.00
Chromium (Cr)	17.00 – 19.00
Nickel (Ni)	9.00 – 12.00
Titanium (Ti)	5 x (C + N) min, Max 0.70
Iron (Fe)	Balance

Mechanical Properties of Stainless Steel 321

Property	Value
Tensile Strength	515 MPa (75 ksi)
Yield Strength	205 MPa (30 ksi)
Elongation	40%
Hardness	217 Brinell
Modulus of Elasticity	200 GPa (29.0 x 10^6 psi)
Density	8.0 g/cm³

Dimensional Chart for Stainless Steel 321 Threaded Flanges

Nominal Pipe Size (Inches)	Diameter of Flange (mm)	Thickness (mm)	Bolt Circle Diameter (mm)	Number of Bolts	Bolt Hole Diameter (mm)
1/2″	95	14	60	4	11.2
1″	115	16	79	4	13.5
2″	150	18	120	4	17.5
4″	220	24	190	8	17.5
6″	280	26	241	8	20.0
8″	340	29	298	8	22.5
10″	405	32	362	12	25.0
12″	485	35	432	12	27.0
14″	535	38	476	12	30.0
16″	595	41	540	16	32.0
18″	635	44	578	16	34.0
20″	700	47	635	20	36.5
24″	815	51	749	20	39.0

Global Reach: Export Countries

Sachiya Steel International Private Limited exports Stainless Steel 321 Threaded Flanges to numerous countries worldwide. Below is a list of the regions and countries where we consistently supply our premium products:

Region	Countries
North America	USA, Canada, Mexico
South America	Brazil, Argentina, Chile
Europe	Germany, UK, France, Italy, Spain, Netherlands
Middle East	UAE, Saudi Arabia, Qatar, Oman, Kuwait
Africa	South Africa, Nigeria, Egypt, Kenya, Morocco
Asia	India, China, Japan, South Korea, Singapore, Malaysia
Oceania	Australia, New Zealand

Conclusion

Selecting the right manufacturer for Stainless Steel 321 Threaded Flanges is vital for ensuring the efficiency and reliability of your piping systems. Sachiya Steel International Private Limited is committed to delivering high-quality flanges that adhere to strict international standards. Our wide selection of sizes, pressure classes, and customization options ensures a perfect match for your needs.

Investing in our products means choosing quality and a partnership focused on excellence. Whether you require flanges for high-temperature environments or applications needing robust corrosion resistance, our Stainless Steel 321 Threaded Flanges are designed to meet your expectations.

For more details or to place an order, please contact us today. We are eager to serve your needs with our superior products and services.