How to Choose the Right Pressure Vessel Material?

I. Consider the Medium and Environment

Corrosive Media: Choose stainless steel (e.g., 316L), titanium alloy, or composite plates. For example, 316L stainless steel is commonly used in acidic and alkaline environments.

Temperature and Pressure: For high-temperature and high-pressure environments, choose low-alloy steel (e.g., 16MnR) or heat-resistant steel; for low-temperature environments, use low-temperature steels such as 16MnDR.

II. Material Performance Must Meet Standards

Strength: High-pressure vessels should use high-strength steel such as Q345R.

Toughness: Low-temperature equipment needs to pass impact testing.

Corrosion Resistance: Stainless steel is preferred for chemical media.

III. Balance Process and Cost

Weldability: Carbon steel is easy to weld; high-alloy steel requires special processes.

Economy: Carbon steel is the cheapest; stainless steel is more expensive but has a longer service life.