GB/T 8162 20Cr is a specific specification and type of steel, of which GB/T 8162 is the national standard number, representing the standard of seamless steel pipe for structure. 20Cr refers to the grade of steel used in this steel pipe, that is, a low-hardenability carburizing steel.

Specifically, 20Cr seamless steel pipe has a variety of excellent characteristics, such as hollow section design makes it lighter than solid steel, while performing well in bending and torsioning strength. This kind of steel pipe is widely used in transporting various fluids, such as oil, natural gas, gas and water. In the manufacturing field, it is also widely used in the manufacture of various structural parts and mechanical parts, such as oil drill pipe, automobile drive shaft and so on. In addition, due to its high material utilization rate and simplified manufacturing processes, 20Cr seamless steel pipes are also widely used in the manufacture of ring parts, such as rolling bearing rings and jack sleeves. In general, GB/T 8162 20Cr seamless steel pipe with its superior performance and a wide range of applications, in the industrial production and construction fields play an important role.

 

The delivery status of GB/T 8162 20Cr is mainly determined by negotiation between the supply and demand parties, and indicated in the contract. Generally speaking, the delivery status can include the following situations:

 

Hot rolled state: The seamless steel pipe is delivered directly after hot rolling, and the steel pipe may still have some residual deformation or thermal stress after hot rolling.

 

Cold-drawn or cold-rolled state: Seamless steel pipes are delivered after cold-drawn or cold-rolled processing, and the size and shape of the steel pipes are more accurate and the surface quality is better.

 

Heat treatment state: seamless steel pipe is delivered after heat treatment (such as annealing, normalizing, quenching, etc.) to improve the structure and performance of the steel pipe and improve its service performance and processing performance.

 

Other special requirements: According to the specific needs of users, seamless steel pipes may also need other special treatment, such as surface oil, sand blasting, rust prevention treatment, etc., to meet the requirements of specific use environment and conditions.

 

The specific delivery status shall be determined by both parties through negotiation and indicated in the contract. At the same time, the delivery status will also affect the subsequent processing and performance of seamless steel pipes, so when choosing the delivery status, it is necessary to take into account the specific use and use environment of steel pipes.