What’s Thick Wall Steel Pipe?

Thick-wall pipe is a steel pipe with a wall thickness exceeding 0.05mm in relation to its outer diameter. This is easily visible to the naked eye.
Why is this type of steel pipe used? The most common use of steel pipe is to support pressure. Therefore, this type of steel pipe can withstand higher pressures and loads, and is suitable for use in extreme weather conditions.

What are the differences between thick-walled and ordinary steel pipe manufacturing processes? 

Common ordinary steel pipes typically undergo hot rolling, cold rolling, and welding processes. Due to their thin walls, they are easy to form and weld, making them suitable for mass production. Thick-walled pipes are mostly manufactured using processes such as hot rolling, piercing, hot expansion, and cold drawing. However, due to the increased wall thickness, rolling and welding are significantly more difficult, so seamless pipes are generally used.

Material

Different steel pipes are generally made from low-carbon steels such as Q195, Q235, ST37, or common alloy steels, and are generally used for fluid transport and structural applications. Thick-walled pipes are typically made from high-quality carbon steel, special alloy steels, and stainless steel. Common grades include 20#, 35CrMo, and 316, suitable for extreme high-pressure environments.

Thick-walled pipes are specifically manufactured for strength, reliability, and safety, and are used in more extreme environments.