ASME B16.47 Series A Weld Neck RTJ Flange Manufacturer
ASME B16.47 Series A Weld Neck RTJ Flange Manufacturer – SSM
SSM is a trusted manufacturer and exporter of ASME B16.47 Series A Weld Neck Ring Type Joint (RTJ) Flanges, designed for high-pressure and high-temperature piping systems. With more than 30 years of experience in flange production, SSM provides top-quality products that comply with international standards and deliver superior performance in demanding industrial environments.
What Is an ASME B16.47 Series A Weld Neck RTJ Flange?
An ASME B16.47 Series A Weld Neck RTJ Flange is a large-diameter forged flange with a long tapered hub that is welded to a pipe. The Weld Neck (WN) connection provides strong reinforcement and smooth stress distribution, making it ideal for high-pressure applications.
The Ring Type Joint (RTJ) face ensures a metal-to-metal seal, providing exceptional leakage resistance under extreme pressure and temperature conditions.
Standard: ASME B16.47 (NPS 26"–60")
Series: Series A (heavy-duty, thicker design than Series B)
Type: Weld Neck Flange (WN)
Facing: RTJ (Ring Type Joint)
Pressure Class: 75 to 1500
Key Features
High Strength & Integrity: Designed to handle severe pressure and thermal cycles.
Leak-Proof Seal: RTJ face type ensures excellent sealing with metallic ring gaskets.
Enhanced Weldability: Long tapered hub provides smooth transition from flange to pipe.
Dimensional Accuracy: Manufactured in strict accordance with ASME B16.47 and ASME B16.5 tolerances.
Customizable: Available in multiple materials, facing types (RTJ or RF), and special coatings upon request.
Available Materials
| Material Standard | Material Type | Common Grades |
|---|---|---|
| ASTM A105 | Carbon Steel | A105N |
| ASTM A350 | Low-Temperature Carbon Steel | LF2, LF3 |
| ASTM A182 | Stainless Steel | F304, F304L, F316, F316L, F321 |
| ASTM B564 | Nickel Alloy | Inconel 625, Incoloy 825, Monel 400, Hastelloy C276 |
| Duplex / Super Duplex | Stainless Steel | F51 / F53 / F55 (UNS S31803, S32750, S32760) |
All flanges are available in forged condition and supplied with full EN 10204 3.1 or 3.2 test certification.
Applications
Oil & Gas Pipelines
Petrochemical and Refinery Installations
Offshore Platforms and Subsea Systems
Power Generation and Nuclear Plants
Marine Engineering and Desalination Facilities
SSM's ASME B16.47 Series A WN RTJ Flanges are specifically engineered for high-pressure and high-temperature service, ensuring long-lasting performance and reliability.
Quality & Inspection
Every flange produced by SSM undergoes strict quality control procedures, including:
Visual & Dimensional Inspection
Ultrasonic and Magnetic Particle Testing
Positive Material Identification (PMI)
Hydrostatic and Pressure Testing
Certification according to EN 10204 3.1 / 3.2
Why Choose SSM?
Over 30 years of professional manufacturing experience
Full compliance with ASME, ASTM, DIN, EN, and API standards
OEM / Custom production available according to drawings or project requirements
Fast global delivery with seaworthy export packaging
Competitive prices and reliable after-sales support
Ordering Information
When ordering ASME B16.47 Series A Weld Neck RTJ Flanges, please specify:
Nominal Pipe Size (NPS)
Pressure Class (75–1500)
Material Grade (e.g., ASTM A105, F316, etc.)
Facing Type (RTJ or RF)
Quantity
Special requirements (coating, testing, marking, etc.)
Contact SSM
Looking for a reliable source for ASME B16.47 Series A Weld Neck RTJ Flanges?
SSM provides premium-quality products, professional technical support, and fast delivery worldwide.
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