Stainless Steel Flanges

Name: Stainless Steel Flanges
Brand: JAYANT IMPEX
Price: 3000.0 INR
Availability: InStock

3000.0 INR/Piece

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Product Details:

Dimension (L*W*H) As per customer specification / Standard dimensions
Feature Corrosion Resistant, High Strength, Durable, Precision Design, Leak Proof
Grade 304, 304L, 316, 316L, 321, 347 and others
Purity High Purity Steel (as per grade)
Application Oil & Gas, Chemical, Petrochemical, Power Plants, Water Treatment, Food & Beverage, Construction
Product Type Flanges
Material Stainless Steel (SS304, SS316, SS304L, SS316L, SS321, SS347, etc.)
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Stainless Steel Flanges Price And Quantity

Minimum Order Quantity 1 Piece
Price 3000.0 INR/Piece

Stainless Steel Flanges Product Specifications

Application Oil & Gas, Chemical, Petrochemical, Power Plants, Water Treatment, Food & Beverage, Construction
Connection Welded / Threaded / Slip-on / Blind / Lap Joint / Socket Weld
Surface Polished / Smooth Finish
Size 1/2 inch to 48 inch (DN15 - DN1200)
Dimension (L*W*H) As per customer specification / Standard dimensions
Material Stainless Steel (SS304, SS316, SS304L, SS316L, SS321, SS347, etc.)
Grade 304, 304L, 316, 316L, 321, 347 and others
Shape Round / Circular
Feature Corrosion Resistant, High Strength, Durable, Precision Design, Leak Proof
Technics Forged / Machined
Purity High Purity Steel (as per grade)
Standard ASTM, ANSI, DIN, JIS, BS, GB
Color Silver / Metallic
Pressure Class 150, 300, 600, 900, 1500, 2500
Product Type Flanges

Coating Anti-rust Oil / As ordered
Face Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Packaging Wooden Cases, Pallets, Customized Packaging
End Connection Butt Weld, Socket Weld, Threaded
Testing Ultrasonic, Hydrostatic, PMI (Positive Material Identification)
Tolerance As per International Standards
Temperature Range Suitable for use up to 870C (depends on grade)
Minimum Order Quantity As per requirement

Product Description

Stainless Steel Pipe Flanges are forged or plate-machined connectors used in systems requiring superior corrosion resistance, chemical stability, high-temperature strength, and hygienic performance across chemical, pharmaceutical, oil and gas, food processing, and marine industries.

1. Common Material Grades & Specifications

Stainless steel flanges are primarily governed by ASTM A182 (forged flanges for high-temperature/pressure service) and ASTM A240 (plate flanges):

Grade Category	Common ASTM Grade	UNS Number	Key Operational Characteristics
Austenitic 304 / 304L	ASTM A182 F304 / F304L	UNS S30400 / S30403	Standard general-purpose grade; excellent weldability and corrosion resistance in water and mild chemicals.
Austenitic 316 / 316L	ASTM A182 F316 / F316L	UNS S31600 / S31603	Molybdenum-bearing alloy; enhanced resistance to chlorides, acidic solutions, and pitting corrosion.
High-Temp Austenitic	ASTM A182 F321 / F347	UNS S32100 / S34700	Titanium/Niobium-stabilized grades; prevents intergranular corrosion in high-heat service ( $400text{--}800^circtext{C}$ ).
Duplex Stainless	ASTM A182 F51 / F60	UNS S31803 / S32205	Mixed austenitic-ferritic microstructure; high yield strength and high resistance to stress corrosion cracking.
Super Duplex	ASTM A182 F53 / F55	UNS S32750 / S32760	Superior mechanical strength and resistance to extreme chloride environments (seawater, offshore topsides).
Super Austenitic	ASTM A182 F44 (6% Mo)	UNS S31254	Specialized for severe chemical processing, bleach plants, and desalination units.

2. Structural Types & Attachment Methods

Weld Neck (WN): Joined by a full-penetration butt-weld; distributes stresses evenly for high-pressure, high-temperature, or cyclic loads.
Slip-On (SO): Double fillet-welded inside and out; easier field alignment at lower fabrication cost.
Blind (BL): Solid forged disc used to blank off or terminate pipeline ends and vessel nozzles.
Socket Weld (SW): Recessed socket holds small-bore piping ( $text{NPS } le 2$ ) prior to fillet welding.
Threaded (TH): Screwed connection using NPT or BSP threads; ideal where welding is prohibited.
Lap Joint (LJ): Loose backing flange paired with a stainless steel stub end to reduce overall material expense.

3. Sealing Face Configurations

Raised Face (RF): Features concentric serrations ( $125text{--}250text{ AARH}$ ) to concentrate seating stress on spiral-wound, PTFE, or non-asbestos gaskets.
Flat Face (FF): Fully flat surface; used when connecting to low-pressure flat-faced equipment or fragile cast valves.
Ring Type Joint (RTJ): Features a precision annular metallic groove for solid oval or octagonal stainless/alloy ring gaskets under extreme pressure.
Tongue & Groove (T&G) / Male & Female (M&F): Interlocking joint faces that prevent gasket lateral displacement under pressure.

4. Primary Dimensional Standards & Ratings

ASME B16.5: Pipe Flanges and Flanged Fittings ( $text{NPS } 1/2 text{ to } 24$ , Class 150, 300, 400, 600, 900, 1500, 2500).
ASME B16.47 Series A & B: Large Diameter Flanges ( $text{NPS } 26 text{ to } 60$ , Class 75 through Class 900).
EN 1092-1: European Metric Series (DN 10 to DN 4000, PN 2.5 through PN 400).
JIS B2220: Japanese Industrial Standard ( $5text{K}, 10text{K}, 16text{K}, 20text{K}, 30text{K}$ ).

Comprehensive Flange Solutions

We offer stainless steel flanges in a versatile range of sizes, face types, and standards to suit the demanding needs of industries like oil & gas, petrochemicals, and water treatment. Flanges are engineered for durability, leak-proof performance, and are available with anti-rust coatings and high purity grades.

Precision Engineering & Testing

Every flange undergoes thorough ultrasonic, hydrostatic, and PMI (Positive Material Identification) tests to ensure compliance with international quality standards. Advanced forging and machining techniques guarantee strength, accuracy, and surface finish, supporting both standard and custom dimension requirements.

Flexible Applications & Customization

Our flanges come with polished or smooth finishes, and are compatible with butt weld, socket weld, slip-on, threaded, blind, and lap joint connections. We accommodate client needs with customizable packaging and minimum order quantities as required, delivered efficiently across India and beyond.

FAQ's of Stainless Steel Flanges:

Q: How do I select the correct face type (RF, FF, RTJ) for my application?

A: Choosing the face type depends on your piping system's pressure and sealing requirements. Raised Face (RF) is common for general use, Flat Face (FF) suits low-pressure systems, and Ring Type Joint (RTJ) is ideal for high-pressure, high-temperature environments where superior leak-proof sealing is essential.

Q: What industries can utilize these stainless steel flanges?

A: These flanges are suitable for a broad array of industries, including oil & gas, chemical processing, petrochemical plants, power generation, water treatment, food & beverage, and construction, thanks to their corrosion resistance, durability, and high-pressure capability.

Q: When should I consider special coatings like anti-rust oil for my flanges?

A: Anti-rust oil is recommended for flanges that will be stored for extended periods or exposed to harsh environmental conditions before installation, as it helps prevent corrosion and maintains surface integrity.

Q: Where are your flanges tested and certified for quality assurance?

A: All our flanges undergo rigorous ultrasonic, hydrostatic, and PMI testing at certified manufacturing facilities, ensuring they meet global standards such as ASTM, ANSI, DIN, JIS, and BS for quality, material accuracy, and leak-proof performance.

Q: What is the process for ordering customized flange sizes or packaging?

A: You can specify your required dimensions, face type, material grade, and desired packaging at the time of order. We accommodate custom requests to meet both international standards and unique project needs, with minimum order quantities as per your requirements.

Q: How does temperature affect flange performance and selection?

A: The temperature suitability depends on the specific stainless steel grade. Our flanges are designed for use up to 870C (subject to material selection), making them appropriate for both standard and high-temperature industrial processes. Always confirm with grade-specific guidelines for optimal performance.

Q: What benefits do stainless steel flanges offer compared to other materials?

A: Stainless steel flanges provide excellent corrosion resistance, high strength, durability, and precision in design. Their leak-proof connections, compliance with international standards, and flexibility in applications make them a preferred choice for demanding environments.

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