20G seamless steel pipe is a common type of seamless steel pipe. The "20G" in its name represents the material of the steel pipe, and "seamless" represents the manufacturing process. This steel is usually composed of carbon steel, alloy steel, etc., and has good mechanical properties and weldability. The main characteristics of 20G seamless steel pipe are high temperature resistance, corrosion resistance, high compressive strength, etc. Therefore, it is widely used in petroleum, natural gas, chemical industry, electric power, construction and other fields.

Implementation standards:
1. Seamless steel pipe for structure: GB8162-2018
2. Seamless steel pipe for conveying fluid: GB8163-2018
3. Seamless steel pipe for low and medium pressure boiler tube boiler: GB3087-2018
4. High-pressure seamless pipe for boiler: GB5310-2018
5. High-pressure seamless steel pipe for fertilizer equipment: GB6479-2018
6. Seamless steel pipe for petroleum cracking: GB9948-2018