Titanium Head Titanium Equpiment Gr12 Titanium Hemispherical Head Titanium Dish

Product Specification

Titanium Head Titanium Equpiment Gr12 Titanium Hemispherical Head (Dish-shaped Head) Titanium Dish Head Equipment

Product Overview:

The Gr12 Titanium Hemispherical Head is a high-performance head type commonly used in pressure vessels, reactors, and boilers. Known for its excellent mechanical properties, this hemispherical head is ideal for use in applications requiring both high strength and corrosion resistance. The hemispherical shape offers uniform stress distribution, making it one of the most efficient designs in terms of material usage under pressure.

The Gr12 Titanium material, which offers remarkable corrosion resistance, is particularly well-suited for industries such as petroleum, electronics, chemical processing, pharmaceuticals, aerospace, and nuclear power. This material is resistant to both acidic and alkaline environments, as well as high temperatures, ensuring reliability in even the most challenging conditions.

1. Product Specifications

• Material:

  • Gr12 Titanium – Known for excellent corrosion resistance to acids, alkalis, and seawater, along with outstanding strength-to-weight ratio.

• Standard:

  • Manufactured according to ASME VIII-I and DIN28013.

• Size:

  • Available in customized sizes depending on client specifications. Diameters range from small to large sizes, typically starting from 50mm and going up to 10,000mm.

• Thickness:

  • Available in various thicknesses, ranging from 2mm to 300mm based on the specific pressure and application requirements.

• Shape:

  • Hemispherical (Spherical Crown Head): Comprised of a spherical shell (half-sphere) and a straight cylindrical edge, which gives it a smooth curvature and optimal stress distribution.

2. Key Features

• Best Mechanical Properties:
  The hemispherical shape provides the best mechanical performance compared to other head types. It requires the smallest wall thickness under the same internal pressure due to the uniform distribution of forces.

• Corrosion Resistance:
  Gr12 Titanium is highly resistant to both acidic and alkaline environments, making it a preferred material in industries like chemical, oil & gas, pharmaceuticals, and nuclear power.

• Stress Distribution:
  The design of the hemispherical head allows for a uniform stress distribution. The curvature ensures that the edge stress, which is caused by changes in the curvature radius, is minimal (only 3.1% of the overall membrane stress in the cylinder), making it more efficient than other head designs.

• Lightweight and Strong:
  Titanium’s strength-to-weight ratio is one of the best among metals, offering excellent durability without adding unnecessary weight, which is particularly important in aerospace and military applications.

• Temperature Resistance:
  Gr12 Titanium performs well under both high temperature and high pressure conditions, making it suitable for extreme environments, such as those found in nuclear power plants and chemical reactors.

3. Applications

The Gr12 Titanium Hemispherical Head is used in a variety of industries that demand superior material performance under pressure and extreme environmental conditions. These industries include:

• Petroleum:
  Used in oil refineries, offshore rigs, and pipelines, where resistance to seawater and corrosive chemicals is essential.

• Electronics:
  Used in reactors and pressure vessels for the electronics industry, where high purity and corrosion resistance are crucial.

• Chemical Industry:
  Employed in chemical reactors, storage tanks, and pressure vessels that handle aggressive acids, alkalis, and solvents.

• Pharmaceutical:
  Suitable for pharmaceutical reactors and storage tanks where materials must be resistant to organic solvents and sterilization processes.

• Textile and Food:
  Applied in manufacturing processes that require resistance to high temperatures and corrosive substances in both food and textile production.

• Aerospace & Military:
  Used in aircraft and missile systems, as well as military equipment that requires materials with high strength, low weight, and high temperature resistance.

• Nuclear Power:
  Gr12 Titanium is resistant to both high temperatures and radiation, making it suitable for nuclear reactors and associated systems.

4. Precautions for Use of Spherical Heads

To ensure long-term performance and integrity of spherical heads, the following precautions must be considered:

1. Carbon Steel Spherical Heads:

   • Carbon steel spherical heads may experience cracking when exposed to environments containing nitrate, ammonia, or alkaline sodium. This can be mitigated by eliminating residual stress during the manufacturing process.

2. Stress Corrosion Cracking (SCC):

   • Austenitic stainless steel spherical heads are prone to stress corrosion cracking in environments rich in chloride ions. It is essential to select appropriate materials for spherical heads depending on the specific application and environment.

3. Hot Galvanizing or Aluminizing:

   • For carbon steel vessels that require hot galvanizing or aluminizing, a heat treatment process is necessary to remove residual stresses from the material.

4. Material Selection:

   • When designing spherical heads for specific applications, ensure that the material selected (such as Gr12 Titanium) is compatible with the environment, temperature, and pressure conditions to prevent premature failure.

5. Advantages of Gr12 Titanium Hemispherical Heads

• Superior Strength-to-Weight Ratio:
  Titanium offers an exceptionally high strength-to-weight ratio, making it suitable for applications where minimizing weight is as important as ensuring strength.

• Excellent Corrosion Resistance:
  Gr12 Titanium offers unparalleled resistance to acids, alkalis, and saltwater, making it an ideal material for industries like chemical, offshore, and pharmaceutical.

• Cost-Efficiency for Pressure Applications:
  The hemispherical design allows for the use of thinner materials while still providing high-pressure resistance, offering a cost-effective solution without sacrificing performance.

• Customization:
  Custom sizes and thicknesses can be provided to suit unique requirements, from small reactors to large pressure vessels.

• Longevity and Durability:
  Due to the exceptional material properties, Gr12 Titanium hemispherical heads offer long-term durability, even in harsh industrial conditions.

Chemical composition

Mechanical Property

6. Why Choose Our Gr7 Titanium Hemispherical Heads?

• Quality Assurance:
  Our titanium hemispherical heads meet the strictest industry standards (ANSI, ASME, API, etc.), ensuring superior quality and reliability in every product.

• Expert Manufacturing:
  We utilize state-of-the-art facilities and highly skilled personnel to manufacture each head, ensuring precise dimensions, proper stress distribution, and high-quality material integrity.

• Global Applications:
  Our products are trusted by clients in diverse industries such as oil, chemical, pharmaceutical, and military for their performance in demanding environments.