ASTM B708 Niobium Fittings: High-Performance Solution for Various Applications

ASTM B708 Niobium Fittings are high-performance components widely used in various industrial applications due to their unique properties, such as excellent corrosion resistance, high melting point, and superior strength-to-weight ratio. Niobium fittings, particularly those conforming to the ASTM B708 specification, are essential for industries that demand high reliability and durability, such as aerospace, chemical processing, and nuclear power. This content will explore what ASTM B708 Niobium Fittings are, their properties, advantages, and their role as a preferred choice among exporters and suppliers.

What is ASTM B708 Niobium Fittings?

ASTM B708 is a standard specification for niobium and niobium alloy fittings used in industrial applications where superior resistance to heat and corrosion is required. Niobium, a lustrous gray metal, is known for its exceptional strength, lightweight nature, and ability to withstand extreme conditions, making it ideal for manufacturing fittings that maintain integrity under high stress. Niobium fittings that meet ASTM B708 specifications are crafted to ensure the highest quality and reliability, adhering to precise dimensional and material requirements.

ASTM B708 Niobium Fittings

Properties of ASTM B708 Niobium Fittings

ASTM B708 Niobium Fittings are engineered to offer a range of properties that make them a top choice in demanding environments. The primary properties include:

  1. Corrosion Resistance: Niobium fittings ASTM B708 exhibit exceptional resistance to corrosion, especially in harsh chemical environments, making them suitable for use in industries like chemical processing and pharmaceuticals.
  2. High Melting Point: With a melting point of 2,468°C (4,474°F), niobium is highly resistant to heat, making these fittings ideal for high-temperature applications such as jet engines and power plants.
  3. Excellent Strength-to-Weight Ratio: Niobium fittings provide significant strength without adding substantial weight, which is crucial in applications where both durability and lightweight are required.
  4. Thermal Conductivity: Niobium offers good thermal conductivity, making it a suitable material for fittings used in applications that require efficient heat dissipation.
  5. Ductility and Workability: These fittings can be easily machined and formed, allowing for versatile fabrication processes and customization according to specific industrial needs.

Advantages of ASTM B708 Niobium Fittings

  1. Superior Performance in Extreme Conditions: ASTM B708 fittings are designed to perform in extreme temperatures and corrosive environments, ensuring long-lasting performance where other materials may fail.
  2. Enhanced Safety and Reliability: The stability of niobium under high stress and its resistance to oxidation and chemical reactions make these fittings a safe and reliable choice for critical applications.
  3. Low Maintenance Requirements: Due to their excellent corrosion resistance, ASTM B708 fittings require minimal maintenance, reducing downtime and overall operational costs.
  4. Lightweight with High Strength: The unique combination of light weight and high strength allows industries to reduce structural weight without compromising on performance, particularly beneficial in aerospace and automotive sectors.
  5. Resistance to Wear and Tear: Niobium fittings have outstanding durability, providing a long service life, even under harsh working conditions, thus ensuring consistent performance and reducing the need for frequent replacements.
Niobium Fittings
B708 Niobium Fittings

Schedule and Size Chart

Schedule Nominal Pipe Size (NPS) Outside Diameter (OD) (mm) Wall Thickness (mm)
Sch 10 1/2″ to 12″ 21.34 – 323.85 2.11 – 4.78
Sch 20 1/2″ to 12″ 21.34 – 323.85 2.77 – 7.92
Sch 40 1/2″ to 24″ 21.34 – 610.00 2.77 – 17.48
Sch 80 1/2″ to 24″ 21.34 – 610.00 3.73 – 21.95
Sch 160 1/2″ to 24″ 21.34 – 610.00 4.78 – 29.36
Sch XXS 1/2″ to 12″ 21.34 – 323.85 7.49 – 57.15

Mechanical Properties Chart 

Property ASTM B708 Requirement
Tensile Strength Min 275 MPa (40 ksi)
Yield Strength Min 150 MPa (22 ksi)
Elongation Min 20%
Hardness Max 100 HB

Specifications Chart

Specification Details
Standard ASTM B708
Material Niobium and Niobium Alloys
Fitting Types Elbows, Tees, Reducers, Caps, Couplings
Manufacturing Process Seamless, Welded, Fabricated
Size Range 1/2″ to 24″
Schedule Sch 10 to Sch XXS
Connection Types Butt Weld, Socket Weld, Threaded

Chemical Composition Chart

Element Composition (%)
Niobium (Nb) Min 99.0
Tantalum (Ta) Max 0.10
Titanium (Ti) Max 0.05
Zirconium (Zr) Max 0.02
Tungsten (W) Max 0.05
Iron (Fe) Max 0.02
Silicon (Si) Max 0.01
Carbon (C) Max 0.01
Hydrogen (H) Max 0.0015

Physical Properties Chart

Property Value
Density 8.57 g/cm³
Melting Point 2,468°C (4,474°F)
Thermal Conductivity 53.7 W/m·K
Electrical Resistivity 15.2 µΩ·cm at 20°C
Modulus of Elasticity 105 GPa
Specific Heat Capacity 0.265 J/g·K

Application Chart

Industry Applications
Aerospace Jet engines, rocket components, turbine blades
Chemical Processing Reactors, heat exchangers, piping systems
Nuclear Reactor components, radiation shielding
Medical Implants, surgical instruments
Electronics Superconducting components, capacitors
Oil & Gas High-temperature piping, corrosive environment
Automotive High-performance exhaust systems

Niobium Fittings ASTM B708: Exporters and Suppliers

ASC LLP is a leading exporter and supplier of high-quality ASTM B708 Niobium Fittings. As a trusted name in the industry, ASC LLP provides niobium fittings that meet stringent international standards, ensuring reliable performance and long service life. Our fittings are manufactured using advanced technology and undergo rigorous quality checks to ensure they meet the specific needs of our clients across various sectors.

  1. Quality Assurance: Our niobium fittings conform to the ASTM B708 standard, guaranteeing high performance and reliability.
  2. Custom Solutions: We offer custom fabrication services to meet specific design and application requirements, providing fittings that are tailored to your needs.
  3. Global Reach: With a strong distribution network, ASC LLP exports niobium fittings worldwide, ensuring timely delivery and excellent after-sales support.
  4. Competitive Pricing: We offer competitive pricing without compromising on quality, making us a preferred choice among global buyers.
  5. Technical Support: Our team of experts provides comprehensive technical support, helping customers select the right fittings for their applications.

ASTM B708 Niobium Fittings are an exceptional choice for industries requiring materials that offer superior resistance to heat, corrosion, and wear. With unique properties and numerous advantages, these fittings are integral to applications ranging from aerospace to chemical processing. As a leading exporter and supplier, ASC LLP is committed to delivering top-quality niobium fittings that meet the highest standards, ensuring safety, efficiency, and reliability for all our clients.

Global Reach

Amardeep Steel Centre 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 B708 Niobium Fittings. 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.

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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.

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