ASTM B381 Titanium Grade 7 Flanges: Your Reliable Choice for Corrosion Resistance and Strength

Amardeep Steel Centre LLP is a leading exporter and supplier of Titanium ASTM B381 Grade 7 Flanges. Known for their exceptional corrosion resistance and mechanical properties, these flanges are widely used across industries that demand high-performance materials. Whether you are looking for dependable solutions in chemical processing, marine engineering, or power generation, ASTM B381 Grade 7 Titanium Flanges offer unmatched advantages.

What Are ASTM B381 Grade 7 Titanium Flanges?

ASTM B381 Grade 7 Titanium Flanges are components used to connect pipes, valves, pumps, and other equipment in a piping system. Made from Titanium Grade 7, which is an alloy containing palladium, these flanges are highly resistant to corrosion in a variety of environments. The addition of palladium enhances the material’s resistance to crevice corrosion and makes it suitable for use in harsh conditions where other materials might fail.

Titanium Grade 7 is essentially a commercially pure titanium alloy, similar to Grade 2 but with the added advantage of enhanced corrosion resistance due to palladium. This makes Flanges Titanium ASTM B381 Grade 7 the preferred choice for industries such as chemical processing, where exposure to corrosive chemicals is a common occurrence.

ASTM B381 Titanium Grade 7 Flanges

Properties of ASTM B381 Grade 7 Titanium Flanges

ASTM B381 Grade 7 Titanium Flanges possess several unique properties that make them stand out in demanding industrial applications:

  1. Corrosion Resistance: The most significant property of these flanges is their outstanding resistance to corrosion, especially in acidic environments. The addition of palladium to Titanium Grade 7 significantly improves its ability to withstand crevice corrosion, pitting, and stress corrosion cracking.
  2. High Strength-to-Weight Ratio: Titanium is known for its excellent strength-to-weight ratio. Despite being lightweight, Titanium Grade 7 flanges offer high tensile strength, making them ideal for applications where weight reduction is crucial without compromising structural integrity.
  3. Ductility and Toughness: Titanium Grade 7 has excellent ductility, allowing it to be formed into complex shapes without losing its strength. This property also makes it resistant to impact and fracture, providing durability even in demanding conditions.
  4. Biocompatibility: Titanium is non-toxic and biocompatible, which makes ASTM B381 Grade 7 Titanium Flanges suitable for medical applications, including surgical implants and devices.
  5. Thermal Stability: Titanium Grade 7 maintains its mechanical properties over a wide range of temperatures, making it suitable for both cryogenic and high-temperature applications.

Advantages of ASTM B381 Grade 7 Titanium Flanges

Choosing ASTM B381 Grade 7 Titanium Flanges offers several advantages, particularly in challenging environments:

  1. Extended Service Life: Thanks to their superior corrosion resistance, these flanges can withstand harsh environments for extended periods, reducing the need for frequent replacements and lowering maintenance costs.
  2. Reduced Maintenance: The high resistance to corrosion means that these flanges require less frequent inspections and maintenance, which can save both time and money in industrial operations.
  3. Versatility: With a combination of high strength, corrosion resistance, and low weight, ASTM B381 Grade 7 Titanium Flanges are versatile and can be used in a wide range of applications, from aerospace to chemical processing.
  4. Cost-Effective Over Time: Although the initial cost of titanium flanges might be higher than other materials, their durability and low maintenance requirements make them a cost-effective choice in the long run.
  5. Safety: The reliability and stability of Titanium Grade 7 flanges enhance safety in critical applications, particularly in industries where equipment failure can lead to severe consequences.
Titanium Grade 7 Flanges
ASTM B381 Flanges

Schedule and Size Chart

Nominal Pipe Size (NPS) Outside Diameter (OD) (inches) Flange Thickness (inches) Bolt Circle Diameter (inches) Number of Bolts Bolt Diameter (inches)
1/2″ 3.50 0.38 2.75 4 0.50
3/4″ 3.88 0.44 3.12 4 0.50
1″ 4.25 0.50 3.50 4 0.50
1 1/2″ 5.00 0.56 4.50 4 0.50
2″ 6.00 0.62 5.00 4 0.63
3″ 7.50 0.75 6.62 4 0.75
4″ 9.00 0.94 7.88 8 0.75
6″ 11.00 1.00 9.50 8 0.88
8″ 13.50 1.12 11.75 8 0.88
10″ 16.00 1.19 14.25 12 1.00
12″ 19.00 1.25 17.00 12 1.00
14″ 21.00 1.38 18.75 12 1.13

Mechanical Properties Chart

Property Value
Tensile Strength (min) 345 MPa (50 ksi)
Yield Strength (0.2% Offset) 275 MPa (40 ksi)
Elongation (min) 20%
Hardness (Rockwell C) 20 max
Modulus of Elasticity 105 GPa (15.2 x 10⁶ psi)
Poisson’s Ratio 0.37

Specifications Chart 

Specification Details
Standard ASTM B381
Flange Type Weld Neck, Slip-On, Blind, Socket Weld, Threaded, etc.
Material Grade Titanium Grade 7
Size Range 1/2″ NB to 24″ NB
Pressure Rating Class 150 to Class 2500
Face Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
Surface Finish ANSI B16.5

Chemical Composition  Chart

Element Weight (%)
Titanium (Ti) Balance
Palladium (Pd) 0.12 – 0.25
Iron (Fe) 0.30 max
Oxygen (O) 0.25 max
Carbon (C) 0.08 max
Nitrogen (N) 0.03 max
Hydrogen (H) 0.015 max

Physical Properties Chart

Property Value
Density 4.51 g/cm³ (0.163 lb/in³)
Melting Point 1660 °C (3020 °F)
Thermal Conductivity 15.6 W/m·K (9 BTU·in/h·ft²·°F)
Specific Heat 0.523 J/g·°C
Electrical Resistivity 55 µΩ·cm

Why Choose Amardeep Steel Centre LLP for supply of ASTM B381 Grade 7 Titanium Flanges?

As a leading ASTM B381 Grade 7 Titanium Flanges trader and stockist, Amardeep Steel Centre LLP is committed to providing high-quality products that meet international standards. Our flanges are manufactured with precision and undergo rigorous quality checks to ensure they meet the stringent requirements of our customers.

  • Quality Assurance: We adhere to strict quality control processes to ensure that our products meet the highest standards of performance and durability.
  • Global Exporter: With a global customer base, we are recognized as a trusted exporter of ASTM B381 Grade 7 Titanium Flanges to various countries around the world.
  • Competitive Pricing: We offer competitive prices without compromising on the quality of our products, making us a preferred choice for customers looking for value for money.
  • Timely Delivery: Understanding the importance of time in industrial operations, we ensure the timely delivery of our products to meet our customers’ project schedules.

ASTM B381 Grade 7 Titanium Flanges are an excellent choice for industries that demand high corrosion resistance, strength, and durability. At Amardeep Steel Centre LLP, we are proud to be leading exporters and suppliers of ASTM B381 Grade 7 Titanium Flanges, offering a wide range of products to meet the needs of various industries. With our commitment to quality, competitive pricing, and timely delivery, we are your reliable partner for all your titanium flange requirements.

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 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.

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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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