Since steel pipe plays an important role in industrial development, Germany has used steel pipes of different grades and specifications according to its own development characteristics over the years. There are usually several grades of steel pipes used by German engineering.
1. St 52: Most commonly used are St52 cold drawn seamless steel tubes. It can be classified into normalizing, quenching and tempering. It is widely used in the manufacture of auto parts, hydraulic cylinders and geological operations. It has good properties such as high wear resistance and fatigue strength.
2. carbon steel X20: X20 steel is commonly used in general mechanical parts and engineering structures. This steel is not suitable for use in conditions such as high temperatures, low temperatures and corrosive environments.
3. 16Mn: This steel is widely used in deep drawing and cold stretching steel pipes. It is suitable for low temperature or high temperature conditions or corrosion resistant environment. All of these can be used in production and processing of 16Mn steel pipes.
4. St 37.4: St37.4 steel pipe is a kind of low carbon steel and its carbon content is about 0.17%. Because of its low carbon content, it is very suitable for making fine steel pipes of various specifications.
5. P235GH: P235GH steel Grade is the European standard steel specification for manufacturing pressurize steam boiler pipes. It is often used to make pipes with higher pressure requirements, and it is good to weld.
6. P265GH: P265GH is an alloy structural steel which is used in pressure vessels and boilers. P265GH steel is suitable for use in high temperature service due to its strength and toughness, and can also be used in welded boilers.
In Germany, there are many specifications and grades of steel pipes. According to actual needs, different steel pipes are selected. Generally speaking, German steel pipes are of high quality and are widely used in pipe conveying, petrochemical industry and engineering industry.
