ASTM B381 Titanium Grade 7 Flanges – Manufacturer, Supplier & Exporter
ASTM B381 Titanium Grade 7 flanges is a corrosion resisting forged flange, it consists of Ti-0.2Pd alloy which have greater acid, chloride and reducing medium resistance. Comparing with grade 2 titanium, grade 7 has a better performance and is used much more in the chemical processing, offshore and marine industries.
Introduction to Titanium Grade 7 Flanges
The ASTM B381 Titanium Grade 7 Flanges are some of the most robust components that can be found in industrial piping systems wherever durability in adverse conditions and long-life reliable performance is a must requirement. Titanium Gr. 7 (Ti-0.2Pd alloy) was developed to work under very hostile conditions where standard stainless steel and even regular titanium piping cannot stand their ground.
We manufacture, supply and export a complete series of Titanium Gr. 7 Forged Flanges in compliance with international codes such as the ASME B16.5 Titanium Grade 7 Flanges. Thanks to years of expertise and proven track record servicing sectors like chemical processing, marine application, desalination and power plants, we always ensure first-class quality, optimum cost-effectiveness and international reach.
What is ASTM B381 Titanium Grade 7 Flange?
ASTM B381 Grade 7 flanges are forged titanium flanges containing about 0.2% Palladium in its alloying elements. The addition of Palladium makes the alloy very resilient to corrosion particularly in reducing acids such as sulfuric acid and hydrochloric acid environments. These flanges are widely used in applications requiring:
- Good corrosion resistance
- Extended operational life
- Lightweight strength
- Good weldability

Key Features of Titanium Grade 7 Corrosion Resistant Flanges
- Exceptional resistance to acids and chlorides
- Enhanced performance due to palladium content
- Excellent weldability and fabrication
- Lightweight compared to steel
- Long service life in harsh environments
Types of ASTM B381 Titanium Grade 7 Flanges
We manufacture and supply a wide range of Titanium Grade 7 Forged Flanges. Some of them are:
ASTM B381 Ti Grade 7 Weld Neck Flanges
- Designed for high-pressure systems
- Provides smooth stress distribution
- Ideal for critical applications
Titanium Grade 7 Slip-On Flanges
- Easy to install and align
- Cost-effective for low-pressure applications
Grade 7 Titanium Blind Flanges
- Used to seal pipe ends
- Ideal for maintenance and inspection systems
Titanium Gr 7 Blind Flanges
- High strength and leak-proof sealing
- Suitable for chemical plants
Titanium Grade 7 Weld Neck Flanges
- Best for extreme temperature and pressure conditions


Dimensions of ASTM B381 Titanium Grade 7 Flanges (ASME B16.5)
| Size | OD (mm) | Thickness (mm) |
| 1” | 108 | 14 |
| 2” | 152 | 16 |
| 4” | 229 | 24 |
| 6” | 279 | 26 |
| 8” | 343 | 30 |
Mechanical Properties of Titanium Grade 7 Flanges
| Property | Value |
| Tensile Strength | ≥ 345 MPa |
| Yield Strength | ≥ 275 MPa |
| Elongation | ≥ 20% |
ASTM B381 Gr 7 Flange Specification
| Specification | Details |
| Standard | ASTM B381 |
| Material | Titanium Grade 7 (Ti-0.2Pd) |
| Flange Standards | ASME B16.5, ASME B16.47 |
| Size Range | ½” to 48” |
| Pressure Class | 150, 300, 600, 900, 1500 |
| Type | Weld Neck, Slip-On, Blind, Socket Weld |
| Manufacturing | Forged |
ASTM B381 Grade 7 Chemical Composition
| Element | Composition (%) |
| Titanium (Ti) | Balance |
| Palladium (Pd) | 0.12 – 0.25 |
| Iron (Fe) | ≤ 0.30 |
| Oxygen (O) | ≤ 0.25 |
| Carbon (C) | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.03 |
| Hydrogen (H) | ≤ 0.015 |
Titanium Grade 7 Flange Pressure Rating Chart
| Class | Pressure Rating |
| Class 150 | Low pressure applications |
| Class 300 | Medium pressure |
| Class 600 | High pressure |
| Class 900 | Heavy-duty systems |
| Class 1500 | Extreme pressure applications |
ASTM B381 Gr 7 Flange Weight Chart (Sample)
| Size (NPS) | Weight (kg) |
| 1/2” | 1.2 |
| 1” | 2.5 |
| 2” | 5.8 |
| 4” | 12.5 |
| 6” | 22.0 |
| 10” | 45.0 |
Applications of Titanium Grade 7 Flanges for Chemical Industry
Titanium Grade 7 flanges for chemical industry are widely used in:
- Acid processing plants
- Petrochemical industries
- Offshore platforms
- Marine environments
- Desalination plants
- Power generation
Titanium Gr 7 Flange Price Per Kg
The Titanium Grade 7 flange price per kg depends on:
- Raw material cost (Titanium + Palladium)
- Flange type and size
- Pressure rating
- Quantity and export requirements
Estimated Range: ₹2500 – ₹4500 per kg (varies based on market conditions)
For exact pricing, it is best to request a quotation based on your specifications
Related Titanium Flange Grades
Why Choose Us as a Titanium Grade 7 Forged Flanges Exporter?
As a trusted Titanium Grade 7 forged flanges exporter, we focus on:
- Strict quality control and testing
- Global export capability
- Compliance with ASTM & ASME standards
- Competitive pricing
- Fast delivery timelines
We also serve as a reliable ASTM B381 Titanium Grade 7 flanges supplier in USA, Middle East, and Europe.
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 Titanium Grade 7 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.

