ASME B16.5 Ti Class 150 Titanium Gr1 Gr2 Raised Face Blind Flanges for Chemical Applications

Overview:

ASME B16.5 Class 150 Titanium Gr1 and Gr2 Raised Face Blind Flanges are designed to provide exceptional corrosion resistance and high strength, making them ideal for chemical applications where resistance to aggressive environments is critical. These flanges are manufactured according to the ASME B16.5 standard, ensuring precise dimensions and reliable performance. Titanium grades, such as Grade 1 (Ti Gr1) and Grade 2 (Ti Gr2), offer distinct benefits, with Grade 1 being the commercially pure titanium and Grade 2 offering improved mechanical properties for demanding industrial applications.

In chemical industries, where flanges are subjected to aggressive acids, salts, and other corrosive chemicals, titanium flanges provide an excellent balance of strength, durability, and resistance to corrosion. The raised face (RF) design of these flanges enhances the sealing performance, ensuring that the connections maintain a secure and leak-proof seal.

Titanium Gr1 vs. Titanium Gr2:

• Titanium Grade 1 (Ti Gr1):

  • Composition: 99.5% titanium
  • Mechanical Properties: Soft, ductile, and highly corrosion-resistant.
  • Applications: Best suited for environments where corrosion resistance is more critical than strength, such as in mild chemical environments.

• Titanium Grade 2 (Ti Gr2):

  • Composition: 99.2% titanium, with trace amounts of iron and oxygen.
  • Mechanical Properties: Higher strength than Grade 1, providing better performance under mechanical stress and at elevated temperatures.
  • Applications: Used in more demanding chemical processes that require higher mechanical strength and resistance to harsh environments.

Key Specifications and Dimensions (ASME B16.5 Class 150 Titanium Raised Face Blind Flange):

Note: The above table provides approximate dimensions for common flange sizes in ASME B16.5 Class 150. Exact measurements may vary based on manufacturer and specific design requirements.

Material Properties of Titanium Gr1 and Gr2:

Chemical Resistance:

Titanium Gr1 and Gr2 exhibit excellent resistance to a wide range of chemicals, particularly in acidic environments. Their corrosion resistance makes them ideal for use in applications such as:

• Acidic Solutions: Resistant to most acids, including sulfuric acid, hydrochloric acid, and nitric acid.
• Alkaline Solutions: Show good resistance to caustic soda and other alkaline solutions.
• Chlorides: Titanium Gr2 offers superior resistance to chloride-induced stress corrosion cracking, making it highly suitable for marine and chemical processing applications.

Applications of Titanium Gr1 and Gr2 Raised Face Blind Flanges:

1. Chemical Processing Industry:

   • Used in reactors, heat exchangers, and pipelines where aggressive chemicals are handled.
   • Titanium Gr1 is used in applications requiring high corrosion resistance, while Gr2 is preferred for applications that require higher strength.

2. Marine Applications:

   • Used in desalination plants, offshore platforms, and marine chemical storage systems due to their exceptional resistance to seawater and saltwater environments.

3. Petrochemical Industry:

   • Applied in petrochemical plants for handling corrosive byproducts and process chemicals.

4. Pharmaceutical Industry:

   • Utilized in drug manufacturing equipment where sterilization and clean environments are essential.

5. Food and Beverage Industry:

   • Titanium is used in equipment that processes acidic food products, ensuring longevity and sanitary conditions.

Inspection and Testing:

To ensure the highest quality and compliance with ASME B16.5 standards, titanium flanges undergo thorough inspection and testing:

• Material Certification (EN 10204/3.1B): Verifies chemical composition and mechanical properties.
• Ultrasonic Testing (UT): Ensures the absence of internal and surface defects.
• Hydrostatic Testing: Confirms pressure containment ability without leakage.
• Third-Party Inspection Reports: Provides independent verification of flange quality and conformance to standards.

Conclusion:

ASME B16.5 Ti Class 150 Titanium Gr1 and Gr2 Raised Face Blind Flanges are essential components for chemical, marine, and industrial applications requiring high performance in aggressive environments. With superior corrosion resistance, excellent mechanical properties, and compliance with industry standards, these flanges provide reliable and long-lasting solutions for critical operations. Choosing the right titanium grade based on specific application needs—whether Grade 1 for pure corrosion resistance or Grade 2 for added strength—ensures optimal performance and safety.