Introduction to LSAW pipe materials and grades

The choice of material and grade of LSAW pipe mainly depends on its intended use, working environment and required performance. The following is an introduction to some common LSAW pipe materials and grades:

Material:

1. Carbon structural steel: This is the most common material, such as Q235A, Q235B, Q345, etc. These steels have good welding and mechanical properties and are suitable for the production of most LSAW pipes.

2. Low alloy high-strength steel: such as X42, X52, X60, X70 and other pipeline steel series. These steels have higher strength and toughness and are particularly suitable for long-distance pipelines such as oil and natural gas.

Grade:

1.GB/T 3091: This is China’s national standard steel pipe grade, mainly used for low-pressure fluid transportation, such as water and air. Common grades include Q195, Q215, Q235, etc.

1. API 5L: This is a standard established by the American Petroleum Institute to specify pipeline steel pipes for the oil and gas industry. According to this standard, steel pipes are divided into different grades, such as X42, X52, X60, X70, etc. These grades represent the minimum yield strength of steel pipes under different pressures.

When selecting materials and grades, comprehensive considerations should be made based on factors such as specific engineering requirements, working environment, and cost.