ASME Hemispherical Tank Heads

The strongest head geometry for demanding pressure vessel applications.

When pressure vessel performance is the priority, hemispherical tank heads provide one of the strongest and most efficient geometries available. Commercial Metal Forming manufactures ASME hemispherical tank heads for applications requiring exceptional strength, offering standard sizes and custom solutions in a variety of materials to meet demanding fabrication requirements.

Over 300 part numbers in stock and ready to ship

ASME Hemispherical
specifications

  • Head Type: Hemispherical
  • Standard: ASME
  • Diameter Capacity: 10 ¾” – 40 ½”
  • Materials: Carbon steel, stainless steel, and other ferrous and non-ferrous alloys
  • Custom Forming: Available
  • Material Thickness: Up to 2”

What are ASME Hemispherical Tank Heads?

ASME hemispherical tank heads feature a true half-sphere profile, making them one of the strongest head geometries used in pressure vessel construction.

Because internal pressure is distributed uniformly across the curved surface, hemispherical heads are commonly selected for applications where strength and pressure resistance outweigh concerns about fabrication complexity or material cost. Their proven performance makes them a trusted solution for storing liquids and gases under pressure.

Key Attributes:

  • True hemispherical geometry for maximum structural strength
  • Excellent pressure distribution across the entire head
  • Manufactured to ASME pressure vessel requirements
  • Available in standard and custom configurations

Common Applications

  • Pressure vessels
  • Gas storage vessels
  • Liquid storage systems
  • Chemical processing equipment
  • Energy and utility applications
  • Industrial process equipment

Frequently asked questions

What is a hemispherical tank head?

A hemispherical tank head is formed into a true half-sphere shape, providing one of the strongest geometries available for pressure vessel construction. Its design distributes internal pressure evenly across the surface, making it well suited for high-pressure applications.

What materials are available?

Commercial Metal Forming manufactures ASME hemispherical heads in carbon steel, stainless steel, and other ferrous and non-ferrous alloys depending on project requirements.

What sizes are available?

Standard hemispherical tank heads are available in diameters from 10¾ inches to 40½ inches with material thicknesses up to 2 inches. Custom solutions are also available based on project requirements.

Do you manufacture larger hemispherical heads?

Yes. Commercial Metal Forming can manufacture larger hemispherical shapes using segmented sections that are welded together to meet project specifications. Segmented hemispheres can be supplied assembled, trim-fit and knocked down, or untrimmed and unassembled.

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Commercial Metal Forming can deliver precision-formed tank heads that meet your exact requirements. What is your project?