Basic Knowledge of API Steel Pipes

API steel pipes are steel pipes produced according to the standards set by the American Petroleum Institute (API). These steel pipes are commonly used in the oil and gas industry to transport oil, gas and liquid fluids. Here are some basics about API steel pipe:

1. Material: API steel pipes are usually made of carbon steel, which has sufficient strength, high temperature resistance, corrosion resistance and other properties to meet the environmental conditions required during oil and gas transportation.

2. Grade: API steel pipes are usually divided into different grades according to usage scenarios and requirements, such as API 5L grade. Each grade has its specific performance and technical requirements.

3. Sizes and specifications: API steel pipes are available in a variety of outer diameters and wall thickness specifications to adapt to different transportation needs. In the oil and gas industry, common specifications include diameters from 2 inches to 48 inches and wall thicknesses from 0.154 inches to 1.000 inches.

4. Surface treatment: API steel pipes usually undergo varying degrees of surface treatment to prevent corrosion and improve durability.

5. Usage scenarios: API steel pipes are widely used in oil, natural gas and water transmission pipelines, drilling pipelines and related engineering projects. They are an indispensable basic material in these industries.

Overall, API steel pipes play a very important role in the oil and gas industry, used for transportation, drilling and other related applications, and are one of the key materials that support the normal operation of these industries.