We are a trustedSS 347H Flanges Manufacturer in India , supplying high-performance flanges designed for demanding industrial environments. Our A182 Stainless Steel 347H Flanges are manufactured using premium raw materials and advanced forging processes to ensure strength, durability, and corrosion resistance.
As a reliable SA182 SS 347H Flanges Supplier in India, we provide flanges that meet global quality standards and are suitable for high-temperature and high-pressure applications. Steel 347H Flanges are widely used in industries where piping systems operate under extreme heat and pressure. The high carbon content of grade 347H improves creep resistance and strength at elevated temperatures.
Our range includes F347H Flange types such as weld neck, slip-on, blind, threaded, and lap joint flanges, ensuring compatibility with various industrial piping systems.
What are Stainless Steel 347H Flanges?
Steel 347H Flanges are high-carbon stabilized stainless steel pipe flanges manufactured according to A182 F347H Stainless Steel Flanges specifications. The addition of niobium improves resistance to intergranular corrosion while providing excellent strength at high temperatures. These flanges are widely used in petrochemical plants, refineries, power generation systems, and high-temperature piping applications.
Common types of A182 321H Stainless Steel Flanges include:
- SS 321H Weld Neck Flanges
- SS 321H SO Flanges
- SS 321H Blind Flanges
- ASTM A182 F321H Threaded Flange
- 321H SS RTJ Flanges
- 321H SS Lapped Joint Flanges
Because of their high-temperature strength and corrosion resistance, 321H Flanges are widely used in petrochemical plants, power stations, and refinery pipelines.
ASTM A182 F347H Stainless Steel Flanges Overview
ASTM A182 F347H Stainless Steel Flanges are forged stainless steel components designed for high-temperature service. Grade 347H is an improved version of stainless steel 347, with higher carbon content to increase mechanical strength at elevated temperatures.
The alloy contains niobium (columbium) which stabilizes the material against chromium carbide precipitation during welding. This improves corrosion resistance and prevents intergranular corrosion.
Because of these properties, 347H Flanges are commonly used in heat exchangers, boilers, chemical plants, and high-temperature pipelines.
Types of Stainless Steel 347H Flanges
We manufacture and supply various types ofStainless Steel 347H Flanges to suit different industrial piping systems.
➤ Stainless Steel 347H Weld Neck Flanges
The Stainless Steel 347H Weld Neck Flanges are designed with a long tapered hub that reduces stress concentration and improves strength. These flanges are commonly used in high-pressure and high-temperature piping systems.
➤ SS 347H Slip On Flanges
The SS 347H Slip On Flanges are easy to install and are commonly used in low-pressure piping applications. The pipe is inserted into the flange and welded both inside and outside to ensure strength and leak-free performance.
➤ ASTM A182 Stainless Steel 347H Blind Flanges
As anASTM A182 Stainless Steel 347H Blind Flanges Exporter, we provide flanges used to seal the end of pipelines or pressure vessels. These flanges are ideal for maintenance operations and pressure testing.
➤ 347H SS Lapped Joint Flanges
347H SS Lapped Joint Flanges are used with stub ends and are suitable for piping systems that require frequent dismantling.
➤ 347H Stainless Steel Threaded Flanges
As347H Stainless Steel Threaded Flanges Stockists, we provide threaded flanges used in piping systems where welding is not recommended.
Stainless Steel 347H Flanges Specifications
| Specification | Details |
|---|---|
| Material Grade | Stainless Steel 347H |
| Flange Standard | ASME B16.5 / ASME B16.47 |
| Standard | ASTM A182 / ASME SA182 |
| Flange Types | Weld Neck, Slip On, Blind, Threaded, Lap Joint |
| Size Range | ½” NB – 48” NB |
| Pressure Class | 150, 300, 600, 900, 1500, 2500 |
| Face Types | Raised Face (RF), Flat Face (FF), RTJ |
Chemical Composition of SS 347H Flanges
| Element | Composition (%) |
|---|---|
| Chromium | 17 – 20 |
| Nickel | 9 – 13 |
| Carbon | 0.04 – 0.10 |
| Manganese | ≤ 2 |
| Silicon | ≤ 1 |
| Niobium | Stabilized |
Mechanical Properties of SS F347H Flange
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 35 % |
| Hardness | 201 HB Max |
Advantages of Stainless Steel 347H Flanges
Excellent High Temperature Strength
The higher carbon content improves creep resistance and high-temperature environments.
Strong Corrosion Resistance
Niobium stabilization prevents intergranular corrosion.
Good Weldability
These flanges can be welded without losing corrosion resistance.
Durability
Long service life even in aggressive industrial environments.
Low Maintenance
High resistance to oxidation and corrosion reduces maintenance costs.
Applications of ASTM A182 Stainless Steel 347H Flanges
Our SS F347H Flanges are widely used in:
- Oil and Gas Industry
- Petrochemical Plants
- Chemical Processing Industry
- Power Generation Plants
- Heat Exchangers
- Boiler Systems
- Pressure Vessels
- High Temperature Piping Systems
These industries rely on SUS 347H Flanges for reliable performance in extreme conditions.
Manufacturing Process of Stainless Steel 347H Flanges
>The production of Stainless Steel 347H Flanges involves multiple stages including forging, machining, drilling, and finishing. Each flange is manufactured using precision forging techniques and strict quality control procedures to ensure dimensional accuracy and structural integrity. Our experience in industrial piping components allows us to deliver flanges that meet international standards and perform reliably in demanding applications.
Testing and Quality Inspection
>To ensure the reliability of ASTM A182 F347H Stainless Steel Flanges, several quality tests are conducted:
- Positive Material Identification (PMI)
- Ultrasonic Testing
- Radiography Testing
- Hydrostatic Testing
- Hardness Testing
- Chemical Analysis
Global Exporter of Stainless Steel 347H Flanges
We supply SS 347H Flanges to customers worldwide including:
- Middle East
- Europe
- Asia
- North America
- Africa
As anASTM A182 Stainless Steel 347H Flanges Supplier, we ensure secure packaging and timely delivery.
Request a Quote for Stainless Steel 347H Flanges
If you are looking for a reliable ASTM A182 Stainless Steel 347H Flanges Supplier, we provide high-quality flanges with competitive pricing and fast global delivery.
Our team can assist you with:
- Technical specifications
- Bulk orders
- Price quotations
- Export documentation
Contact us today to discuss your requirements for Stainless Steel 347H Flanges.
Frequently Asked Questions
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