Tantalum R05400 Flanges – Blind, Weld Neck & Companion Flanges
ASTM B521 Tantalum R05400 Flanges– Best of the best material in corrosive applications ASTM B521 Tantalum R05400 Flanges are arguably the most corrosion-resistant form of piping material that is employed in severely corrosive process applications. ASTM B521 Flange is prized for their unexcelled resistance to virtually all acids except hydrochloric and sulfuric, high ductility, and purity for wide applications in pharmaceuticals, petro chemical, semiconductor, fertilizer, and specialty chemical fields. Being reputed ASME SB521 Tantalum Flange Manufacturer in India, we offer precision engineered tantalum flanges that comply with the quality and performance standards.
ASTM B521 Tantalum Flanges, ASTM B521 Slip On Flange, ASTM B521 Companion Flange, ASTM B521 Weld Neck Flange, ASTM B521 Blind Flange, ASTM B521 Socket Weld Flange, ASTM B521 Threaded Flange and custom based Tantalum Flange as per ASME B16.5,ASTM B521, and your specifications.
We have developed extensive expertise in the manufacturing of ASME SB521 Tantalum Flanges. ASTM B521 Tantalum Flanges supplied by us is made by the premium grade quality materials and checked at every stage.
What are ASTM B521 Tantalum R05400 Flanges?
ASTM B521 Tantalum R05400 Flanges are high-performance pipe connection components manufactured from commercially pure tantalum. They provide exceptional resistance to hydrochloric acid, sulfuric acid, nitric acid, and various corrosive chemicals. These flanges are commonly used in chemical processing plants, pharmaceutical manufacturing, heat exchangers, and high-purity industrial systems where corrosion resistance and long service life are essential.
Key advantages include:
- Outstanding resistance to strong acids
- Excellent ductility and formability
- High melting temperature
- Superior thermal conductivity
- Exceptional service life
- Excellent compatibility with high-purity systems
- Low contamination characteristics
- Reliable performance under extreme process conditions
These benefits make tantalum flanges a preferred choice for critical piping systems handling aggressive chemicals and corrosive media.
Tantalum R05400 Flanges Supplier and Distributor
we, a preferred Tantalum R05400 Flanges Supplier and distributor carry on a huge stock of both standard and customer based specific flange types suitable for global Industrial uses. Our engineers would advise their customer with appropriate flange types on basis of their operation and working pressure, working temperature, working media corrosiveness, pipe size and specifications. We will furnish the flange types for every pressure level, face finishes and every measurement by conforming the relevant ASTM and ASME requirements.
Types of ASTM B521 Tantalum Flanges We Supply
Tantalum Weld Neck Flange
These Tantalum Weld Neck Flanges have a long tapered hub that is ideal for ensuring the distribution of stresses across the pipeline. These are often seen in the applications involving severe conditions, both in terms of temperature and pressures.
Benefits include:
- Enhanced fatigue resistance
- Reduced stress concentration
- Excellent weldability
- Ideal for severe service conditions
Our custom machined tantalum weld neck flanges are manufactured to precise dimensional tolerances for critical industrial installations.
Tantalum Blind Flange
A Tantalum Blind Flange is used to seal the end of a piping system or pressure vessel opening. These flanges provide easy access for future inspections, maintenance, and system modifications.
Advantages include:
- Leak-proof closure
- High pressure handling capability
- Easy maintenance access
- Long-term corrosion protection
We offer ASME B16.5 UNS R05400 Blind Flange solutions in multiple pressure classes and custom dimensions.
Companion Flanges
Companion flanges are commonly utilized for equipment connections and specialized piping assemblies. As mill certified UNS R05400 companion flange stockists, we provide flanges with complete material traceability and documentation.
Slip-On Flanges
Slip-on flanges are economical and easy to install. They are widely used in low to moderate pressure systems requiring reliable pipe connections.
Socket Weld Flanges
Socket weld flanges are designed for smaller pipe diameters and provide strong, leak-resistant joints in high-pressure applications.
Threaded Flanges
Threaded flanges eliminate the need for welding and are commonly used where welding operations are impractical or restricted.
UNS R05400 Powder Metallurgy Tantalum Flange
UNS R05400 Powder Metallurgy Tantalum Flange Utilizing a modern powder metallurgical manufacturing process results in increased material uniformity and improved dimensional accuracy for higher mechanical performance while still retaining tantalum’s superior resistance to corrosive environments.
Applications include:
- Semiconductor manufacturing
- High-purity processing equipment
- Chemical reactors
- Specialty acid handling systems
- Advanced research facilities
These flanges are especially beneficial where stringent purity requirements and dimensional consistency are critical.
Schedule and Size Chart
| Nominal Size | Flange Thickness | Bolt Hole Diameter | Number of Bolt Holes | Bolt Circle Diameter |
| 1/2″ | 0.25″ | 0.56″ | 4 | 2.00″ |
| 1″ | 0.38″ | 0.75″ | 4 | 2.75″ |
| 1.5″ | 0.44″ | 0.88″ | 4 | 3.50″ |
| 2″ | 0.50″ | 1.00″ | 4 | 4.25″ |
| 3″ | 0.62″ | 1.25″ | 8 | 6.50″ |
| 4″ | 0.75″ | 1.50″ | 8 | 8.75″ |
| 6″ | 1.00″ | 2.00″ | 8 | 11.00″ |
| 8″ | 1.25″ | 2.50″ | 12 | 14.00″ |
Mechanical Properties Chart
| Property | Value | Test Method |
| Tensile Strength | 100-150 ksi | ASTM E8 |
| Yield Strength | 70-100 ksi | ASTM E8 |
| Elongation | 15-25% | ASTM E8 |
| Hardness | 30-40 HRC | ASTM E10 |
| Impact Strength | High | ASTM E23 |
Specifications Chart
| Specification | Requirement |
| Standard | ASTM B521 |
| Grade | R05400 |
| Material | Tantalum (Ta) |
| Form | Flanges |
| Finish | Standard industrial finish |
| Certification | Mill test certificate available upon request |
Chemical Composition Chart
| Element | Content (%) |
| Tantalum (Ta) | ≥ 99.9 |
| Oxygen (O) | ≤ 0.05 |
| Carbon (C) | ≤ 0.05 |
| Hydrogen (H) | ≤ 0.01 |
| Nitrogen (N) | ≤ 0.01 |
Physical Properties Chart
| Property | Value |
| Density | 16.6 g/cm³ |
| Melting Point | 3017°C (5463°F) |
| Thermal Conductivity | 57 W/mK |
| Electrical Resistivity | 0.20 μΩ·m |
| Coefficient of Thermal Expansion | 6.6 x 10⁻⁶ /°C |
Other Tantalum Flange Grades :
Applications of ASTM B521 Tantalum R05400 Flanges
Chemical Processing Industry
Tantalum flanges are extensively used in reactors, piping systems, acid storage facilities, and chemical transfer equipment handling aggressive chemicals.
Pharmaceutical Industry
High-purity manufacturing processes require contamination-free materials. Tantalum flanges provide excellent corrosion resistance and product purity.
Semiconductor Manufacturing
Ultra-pure chemical processing systems depend on tantalum components to maintain product integrity and process efficiency.
Petrochemical Plants
Tantalum flanges help extend equipment life in highly corrosive process streams.
Fertilizer Industry
Acid production and handling facilities utilize tantalum flanges due to their outstanding resistance to corrosive media.
Heat Exchangers
Tantalum’s corrosion resistance and thermal properties make it ideal for critical heat transfer equipment.
Why Industries Choose Our ASTM B521 Tantalum Flanges
Customers across global industries rely on our expertise because we focus on product quality, technical precision, and dependable service.
What sets us apart:
- Extensive industry experience
- Precision machining capabilities
- International quality standards
- Competitive pricing
- Fast delivery schedules
- Custom manufacturing support
- Export-ready packaging
- Technical assistance for material selection
Whether you require standard flange configurations or custom-engineered solutions, our team can provide products tailored to your project specifications.
Frequently Asked Questions
What is UNS R05400 Tantalum?
UNS R05400 is a commercially pure tantalum grade known for its exceptional resistance to corrosion, particularly in acidic environments.
Where are Tantalum Blind Flanges used?
Tantalum Blind Flanges are used to close pipe ends, pressure vessel openings, and process equipment connections in corrosive service conditions.
What industries use Tantalum Weld Neck Flanges?
Chemical processing, pharmaceutical manufacturing, semiconductor production, petrochemical plants, and fertilizer industries commonly use Tantalum Weld Neck Flanges.
Are custom machined tantalum weld neck flanges available?
Yes. Custom dimensions, pressure ratings, facing types, and machining specifications can be manufactured according to customer requirements.
Do you provide mill test certificates?
Yes. Material test certificates, inspection reports, and third-party certification can be supplied with every order.
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 B521 Tantalum R05400 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.
