X90Q seamless steel pipe is a high-performance steel pipe product with excellent mechanical properties and corrosion resistance, and is widely used in oil, natural gas, chemical industry, power, and other fields. Below, we will introduce the manufacturing process, performance characteristics, application fields, and other aspects of seamless steel pipe in detail.

Chemical properties of X90Q seamless steel pipe
Implementation standard of X90Q seamless steel pipe; API SPEC5L pipeline steel pipe specification, steel pipe for pipeline transportation system of the petroleum and natural gas industry
Chemical composition of X90Q seamless pipe: carbon: ≤0.16, silicon: ≤0.45, manganese: ≤1.90, phosphorus: ≤0.020, sulfur: ≤0.010, copper: ≤0.5, nickel: ≤1, chromium: ≤0.5, molybdenum: ≤0.5, boron: ≤0.004
Mechanical properties of X90Q seamless steel pipe: yield strength 625~775MPa, tensile strength: 695~915MPa, yield ratio: ≤0.93
Product specifications of X90Q seamless steel pipe: outer diameter 21.3mm~1016mm, wall thickness 2.0~140mm.
The products of X90Q seamless steel pipe shall comply with TSGD7002 pressure pipeline component type test rules.

First, the manufacturing process of seamless steel pipes
The manufacturing process of seamless steel pipes mainly includes hot rolling, cold rolling, hot expansion, cold drawing, and other processes. Among them, the hot rolling process is one of the most commonly used seamless steel pipe manufacturing processes. The manufacturing process of hot-rolled seamless steel pipes is to heat the tube billet to a high temperature state, then perforate the tube billet into a tubular shape through a punching machine, and then roll the tubular material into a seamless steel pipe of the required specifications through a rolling mill. The advantages of hot-rolled seamless steel pipes are high production efficiency and low cost, which are suitable for mass production. However, the precision and surface quality of hot-rolled seamless steel pipes are relatively low, and subsequent processing and treatment are required.

Second, the performance characteristics of X90Q seamless steel pipes
X90Q seamless steel pipes are a high-strength, high-toughness seamless steel pipe with good corrosion resistance and wear resistance. Its main performance characteristics are as follows:
1. High strength: X90Q seamless steel pipes have high yield strength and tensile strength, can withstand large pressure and tension, and are suitable for use in various harsh environments.
2. High toughness: X90Q seamless steel pipe has good toughness and plasticity, and can maintain good stability and reliability when subjected to shock and vibration.
3. Good corrosion resistance: X90Q seamless steel pipe is made of high-quality steel, and after special anti-corrosion treatment, it has good corrosion resistance and can resist various chemical corrosion and electrochemical corrosion.
4. Wear resistance: The surface of X90Q seamless steel pipe has been finely treated, has good wear resistance, and can effectively extend the service life.

Third, the application field of X90Q seamless steel pipe
X90Q seamless steel pipe is widely used in oil, natural gas, chemical industry, electric power, and other fields due to its excellent performance characteristics. Specifically, it can be used in the following aspects:
1. Oil and natural gas pipelines: X90Q seamless steel pipe has high strength, high toughness, and good corrosion resistance, and is an ideal choice for oil and natural gas pipelines. It can withstand the use of high pressure, high temperature, and harsh environments to ensure the safety and stability of the pipeline.
2. Chemical equipment: X90Q seamless steel pipe is suitable for the manufacture of various chemical equipment, such as reactors, storage tanks, heat exchangers, etc. Its good corrosion resistance and wear resistance can ensure that chemical equipment is not corroded and worn during long-term use, ensuring the normal operation and service life of the equipment.
3. Power industry: X90Q seamless steel pipe can also be used to manufacture various pipelines and equipment in the power industry, such as steam pipes, water supply pipes, flue gas exhaust pipes, etc. Its high strength and good corrosion resistance can ensure the safety and stability of pipelines and equipment, and improve the production efficiency and economic benefits of the power industry.

In short, X90Q seamless steel pipe is an excellent high-performance steel pipe product with broad application prospects and market demand. With the continuous development of oil, natural gas, chemical, power, and other fields, the application field of X90Q seamless steel pipe will continue to expand, providing strong support and guarantee for the development of various industries.