ASTM B392 R04261 Niobium Flanges Manufacturer in India | UNS R04261 Flanges Supplier & Exporter
What are ASTM B392 R04261 Niobium Flanges?
ASTM B392 R04261 Niobium Flanges are pipe connection components manufactured from Nb-1Zr (Niobium–1% Zirconium) alloy according to ASTM B392 specifications. These flanges provide excellent corrosion resistance, superior heat resistance, low neutron absorption, and outstanding mechanical stability. Common configurations include Blind Flanges, Slip-On Flanges (SORF), Threaded Flanges, Orifice Flanges, and custom ASTM B392 Machined Flanges for critical industrial systems.
ASTM B392 R04261 Niobium Flanges – High Performance Flanges for Corrosion & High-Temperature Applications
We are a trusted ASTM B392 R04261 Niobium Flanges manufacturer offering precision-engineered flange solutions for demanding industrial environments. Our range of UNS R04261 Niobium Flanges is designed for applications where excellent corrosion resistance, high melting point, dimensional stability, and reliable performance are essential.
Manufactured according to international quality standards, our niobium flanges are widely used in chemical processing, aerospace, semiconductor manufacturing, nuclear systems, petrochemical processing, and high-purity industrial applications.
As an experienced Nb-1Zr Niobium Flanges Supplier, we provide complete flange solutions in multiple pressure classes, sizes, face types, and custom machining configurations to match project requirements.
What is ASTM B392 R04261 Niobium?
UNS R04261 is a niobium alloy strengthened with approximately 1% zirconium (Nb-1Zr). The addition of zirconium improves mechanical strength while preserving niobium’s excellent resistance to chemical attack and elevated temperatures.
Because of these characteristics, R04261 Niobium Flange products are frequently selected for industries requiring purity, reliability, and long operational life.
Key Characteristics:
- Excellent corrosion resistance
- Superior thermal stability
- High melting temperature
- Good fabrication properties
- Excellent weldability
- Reliable performance under demanding conditions
- Suitable for vacuum and reactive environments

Types of ASTM B392 R04261 Niobium Flanges We Offer
ASTM B392 R04261 Niobium Blind Flanges
Designed to close pipe systems securely and allow future expansion or maintenance access. These flanges deliver dependable sealing performance in critical process lines.
UNS R04261 Niobium Slip On Flanges (SORF)
Slip-on flanges are easy to install and align with piping systems. They are commonly selected for moderate-pressure operations where installation efficiency matters.
ASTM B392 Niobium Threaded Flanges
Threaded flanges connect without welding, making them suitable for systems where heat application should be minimized.
R04261 Niobium Orifice Flanges
Engineered for measuring and regulating flow rates in industrial piping systems.
ASTM B392 Machined Flanges
Produced with high dimensional precision to satisfy custom engineering and application-specific requirements.
Weld Neck Niobium Flanges
Preferred for high-pressure and temperature service due to excellent stress distribution.
Socket Weld Niobium Flanges
Ideal for smaller-diameter piping systems requiring secure connections.


ASTM B392 R04261 Niobium Flanges Specification
|
Specification |
Details |
|
Material Grade |
ASTM B392 R04261 |
|
UNS Number |
UNS R04261 |
|
Material Type |
Nb-1Zr Niobium Alloy |
|
Standard |
ASTM B392 |
|
Dimensions |
ANSI B16.5, ASME B16.47 |
|
Pressure Ratings |
Class 150 to Class 2500 |
|
Size Range |
½” NB to 48” NB |
|
Face Types |
RF, FF, RTJ |
|
Manufacturing |
Forged, Machined |
|
Testing |
PMI, Hydro, Dimensional Inspection |
Chemical Composition of UNS R04261 Niobium Flanges
|
Element |
Composition |
|
Niobium (Nb) |
Balance |
|
Zirconium (Zr) |
Approx. 1.0% |
|
Iron (Fe) |
Controlled |
|
Oxygen |
Controlled |
|
Carbon |
Controlled |
|
Nitrogen |
Controlled |
Mechanical Properties of ASTM B392 R04261 Niobium Flanges
|
Property |
Typical Value |
|
Tensile Strength |
High |
|
Yield Strength |
Excellent |
|
Elongation |
Good |
|
Hardness |
Controlled |
|
Temperature Resistance |
Excellent |

Applications of ASTM B392 R04261 Niobium Flanges
Our UNS R04261 Flanges are used across industries where standard materials may not deliver long-term reliability.
Industries Served:
- Chemical processing plants
- Aerospace systems
- Semiconductor manufacturing
- Nuclear engineering
- Heat treatment facilities
- Petrochemical processing
- Research laboratories
- High-temperature industrial operations
- Vacuum technology applications
- Advanced manufacturing sectors
Related Niobium Flanges Grades
Why Choose Us as Your ASTM B392 R04261 Niobium Flanges Manufacturer?
Selecting the right supplier directly impacts operational efficiency and project success.
What We Deliver:
- Consistent material quality
- Precision manufacturing
- Global export capability
- Fast response and technical assistance
- Complete inspection documentation
- Custom dimensions available
- Competitive pricing
- Secure packaging and timely delivery
As a reliable UNS R04261 Flanges Exporter, we focus on delivering components that support long service life and dependable performance. Looking for ASTM B392 R04261 Niobium Flanges with custom dimensions, quick delivery, and dependable quality? Contact our technical team to discuss specifications, pricing, and project requirements.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM B392 R04261 Niobium Flanges. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

