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1. Corrosion resistance
Gasoline may contain corrosive components such as sulfides and organic acids, so the material needs to have good corrosion resistance. Stainless steel is a common choice, such as 304 stainless steel and 316 stainless steel. They have a high chromium content and can form a dense oxide film on the surface to effectively resist gasoline corrosion. In addition, aluminum alloy also has good corrosion resistance, and the aluminum oxide film on its surface can prevent the internal metal from contacting gasoline.
2. Strength and toughness
Storage tanks need to withstand the pressure of gasoline and possible external impacts, so the material should have sufficient strength and toughness. Carbon steel has high strength, but it is easy to rust, and generally requires anti-corrosion treatment, such as coating with anti-corrosion coating or using lining. High-strength alloy steel performs better in strength and toughness, and is suitable for large storage tanks or storage tanks with high safety requirements.
3. Anti-permeability
Gasoline has a certain permeability, and the material should be able to effectively prevent gasoline leakage. Fiberglass reinforced plastic (FRP) is a good choice. It has good anti-permeability, corrosion resistance, light weight and other advantages. However, FRP storage tanks need to be carefully avoided from being hit by sharp objects during installation and use to avoid damaging their integrity.
4. Antistatic performance
Gasoline is prone to static electricity during storage and transportation, so the material of the storage tank should have good antistatic performance. Metal materials such as stainless steel and carbon steel usually have good conductivity, and static electricity can be removed in time through grounding measures. For some non-metallic materials, such as plastics, antistatic agents need to be added to improve their antistatic performance.
5. Comply with relevant standards
The selected materials must comply with relevant national and industry standards and specifications, such as the "Petroleum Depot Design Specifications". These standards have strict requirements on the material, design, manufacturing and installation of storage tanks to ensure the safety and reliability of storage tanks.
