ASTM B381 Grade 5 Titanium Flanges Manufacturer, Supplier & Exporter in India
ASTM B381 Grade 5 Titanium Flanges are high-strength, corrosion-resistant forged components made from Ti-6Al-4V (UNS N56400) alloy. These flanges are manufactured as per ASTM B381 and ASME SB 381 standards and are widely used in aerospace, marine, chemical processing, and oil & gas industries due to their excellent strength-to-weight ratio, heat resistance, and durability. Common types include blind flanges, socket weld flanges, and welded titanium flanges in Grade F5.
What are ASTM B381 Grade 5 Titanium Flanges?
ASTM B381 Grade 5 Titanium Flanges are forged titanium alloy flanges produced using Ti-6Al-4V, one of the most widely used titanium alloys globally. This alloy combines high tensile strength, lightweight properties, and exceptional corrosion resistance, making it ideal for demanding industrial environments.
Manufactured in accordance with ASTM B381 and ASME SB 381 Forged Flanges, these flanges ensure superior mechanical performance and reliability. Grade 5 (F5) is the most popular titanium grade used for flange production due to its balanced properties.
We supply a wide range of ASTM B381 Gr F5 Titanium Flanges, designed to meet international quality standards and customized project requirements.
ASTM B381 Titanium Alloy Forging Equivalent
Understanding equivalents helps buyers ensure compatibility across standards.
- ASTM B381 Grade 5 = UNS N56400
- Equivalent Alloy: Ti-6Al-4V
- Corresponding Standards:
- ASME SB 381
- AMS 4928
- ISO 5832-3
These equivalents confirm that ASTM B 381 Titanium Alloy Forging Equivalent materials maintain consistent chemical and mechanical properties globally.
Key Features of ASTM B381 Grade 5 Titanium Flanges
🔸 Superior Strength-to-Weight Ratio
Grade 5 titanium provides twice the strength of aluminum with significantly less weight than steel, making it ideal for aerospace and marine sectors.
🔸Excellent Corrosion Resistance
These flanges perform exceptionally well in:
- Seawater environments
- Chloride-rich conditions
- Acidic and oxidizing media
🔸 High Temperature Resistance
Withstands elevated temperatures without losing structural integrity.
🔸 Long Service Life
Minimal maintenance and excellent durability reduce long-term operational costs.
Types of ASTM B381 Grade 5 Titanium Flanges
We manufacture and supply a complete range of Titanium Grade 5 Flanges to meet diverse industrial needs:
🔸 ASTM B381 Gr F5 Blind Flange
- Used to seal pipeline ends
- High pressure resistance
- Ideal for maintenance-heavy systems
- Also available as ASTM B381 grade F5 blind pipe flanges
🔸 ASTM B381 UNS N56400 Socket Welded Flanges
- Designed for small-diameter, high-pressure piping
- Strong and leak-proof connections
- Widely used in chemical and hydraulic systems
🔸 ASTM B381 Gr F5 Welded Titanium Flanges
- Suitable for welded piping systems
- Offers strong structural integrity
- Used in high-temperature applications
🔸 Slip-On & Lap Joint Flanges
- Easy alignment and installation
- Cost-effective for low-pressure systems
🔸 Threaded Titanium Flanges
- Used where welding is not feasible
- Quick assembly and disassembly
ASTM B381 Grade 5 Titanium Flanges Specification Chart
To help buyers and engineers quickly evaluate product compatibility, below is a detailed Specification Chart for ASTM B381 Grade 5 Titanium Flanges:
| Specification | Details |
| Standard | ASTM B381 / ASME SB 381 |
| Material Grade | Grade 5 (Ti-6Al-4V) |
| UNS Number | N56400 |
| Equivalent Grades | AMS 4928, ISO 5832-3 |
| Product Type | Forged Titanium Flanges |
| Flange Types | Blind, Socket Weld, Welded, Slip-On, Threaded |
| Size Range | ½” NB to 48” NB |
| Pressure Rating | Class 150 to Class 2500 |
| Face Type | RF, FF, RTJ |
| Manufacturing Process | Hot Forged & CNC Machined |
| Surface Finish | Pickled, Polished, Sandblasted |
| Testing | UT, PMI, Radiography, Mechanical Testing |
| Certification | Mill Test Certificate (EN 10204 3.1 / 3.2) |
| Applications | Aerospace, Marine, Oil & Gas, Chemical |
Chemical Composition of Ti-6Al-4V (Grade 5 Titanium)
| Element | Composition (%) |
| Titanium (Ti) | Balance |
| Aluminum (Al) | 5.5 – 6.75 |
| Vanadium (V) | 3.5 – 4.5 |
| Iron (Fe) | ≤ 0.40 |
| Oxygen (O) | ≤ 0.20 |
Mechanical Properties of ASTM B381 Grade 5
| Property | Value |
| Tensile Strength | 895 MPa (min) |
| Yield Strength | 828 MPa (min) |
| Elongation | 10% (min) |
| Hardness | 36 HRC (max) |
Applications of ASTM B381 Grade 5 Titanium Flanges
Due to their outstanding performance, these flanges are widely used across industries:
🔸 Aerospace Industry
- Aircraft engine components
- Structural parts
🔸 Oil & Gas Sector
- Offshore drilling platforms
- High-pressure pipelines
🔸 Chemical Processing
- Heat exchangers
- Reactor vessels
🔸 Marine Industry
- Shipbuilding
- Desalination plants
🔸 Power Generation
- Nuclear and thermal plants
Manufacturing Process & Quality Assurance
We follow strict manufacturing practices to ensure product quality and compliance:
- Hot forging and precision machining for dimensional accuracy
- Ultrasonic testing (UT) and radiography tests
- Positive Material Identification (PMI)
- Compliance with ASTM B381 and ASME SB 381 standards
Our experience in supplying ASTM B381 Grade 5 Titanium Flanges across industries ensures that every product meets real-world performance expectations.
Why Choose Us as Your ASTM B381 Grade 5 Titanium Flanges Supplier?
- Industry Expertise: We bring years of experience in manufacturing and exporting titanium flanges globally.
- Wide Product Range: From ASTM B381 Gr F5 Blind flange to socket welded flanges, we cover all types.
- Custom Solutions: Tailored sizes, pressure ratings, and finishes as per project requirements.
- Global Export Capability: Recognized as a reliable ASTM B381 grade 5 titanium flanges exporter.
- Competitive Pricing: High-quality products at cost-effective rates.
ASTM B381 Grade 5 Titanium Flanges Manufacturers in India
As one of the leading Grade 5 Titanium Flanges manufacturers, we cater to domestic and international markets with precision-engineered products. Our manufacturing unit in India is equipped with advanced machinery and adheres to strict quality standards.
We are recognized among top ASTM B381 Gr F5 Titanium Flanges Manufacturers In India, supplying to industries such as oil & gas, marine, aerospace, and chemical processing.
If you are looking for high-performance ASTM B381 Grade 5 Titanium Flanges, we provide reliable, durable, and precision-engineered solutions tailored to your industrial needs. Whether you require ASTM B381 Gr F5 blind pipe flanges, socket welded flanges, or custom forged solutions, we are ready to support your project with quality and consistency.
Contact us today for pricing, technical support, or bulk inquiries.
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 B381 Grade 5 Titanium 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.
