Hemispherical head is a kind of head commonly used in pressure vessels and storage tanks. Its main function is to close the port of the container and withstand the internal pressure. There are many kinds of materials for hemispherical heads, and different materials have different characteristics and application ranges. The following are the common types of spherical head materials:

1. Stainless steel hemispherical head: Stainless steel has good corrosion resistance and high temperature resistance, and is suitable for pressure vessels and storage tanks with high requirements.

2. Carbon steel hemispherical head: Carbon steel has high strength and hardness, and is suitable for general pressure vessels and storage tanks.

3. Aluminum hemispherical head: Aluminum has light weight and good thermal conductivity, and is suitable for pressure vessels and storage tanks that require lightweight and heat dissipation performance.

4. Titanium alloy hemispherical head: Titanium alloy has good corrosion resistance and lightweight performance, and is suitable for pressure vessels and storage tanks that require high corrosion resistance.