Characteristics and advantages of 12Cr1MoVg boiler tube

In our daily life and industrial production, pipeline transportation and equipment manufacturing occupy an important position. In these fields, a common material is 12Cr1MoVG boiler tube. This kind of pipe can maintain excellent performance in various extreme environments, so it has been widely used in many fields. So, what are the advantages of 12Cr1MoVG boiler tube? How should we choose?

What is 12Cr1MoVg boiler tube?

12Cr1MoVg boiler tube is an alloy high-pressure boiler tube, which belongs to alloy steel. 12Cr1MoVg boiler tube is based on high-quality carbon structural steel, and one or more alloy elements are appropriately added to improve the mechanical properties, toughness and hardenability of steel.

Seamless steel pipes made of this type of steel are widely used in hydraulic props, high-pressure gas cylinders, high-pressure boilers, fertilizer equipment, petroleum cracking, automobile half-axle sleeves, diesel engines, hydraulic pipe fittings and other pipes.

Advantages of 12Cr1MoVG boiler tubes:

1. High temperature performance: 12Cr1MoVG boiler tubes have excellent high temperature performance. They can be used for a long time under high temperature conditions below 580℃. They have a low creep deformation rate and effectively resist the slow deformation of the pipeline caused by long-term heating, ensuring the dimensional accuracy of the boiler pipeline during long-term service. In addition, 12Cr1MoVG can form a dense oxide protective film at high temperature, slowing down the further oxidation of the metal matrix and maintaining the mechanical properties of the pipe.

2. Good corrosion resistance: 12Cr1MoVG boiler tubes have a certain tolerance to corrosive media, can reduce corrosion pits, pitting and other damage, and extend the life of the pipeline. Especially in a high-temperature water vapor environment containing hydrogen, the pipe performs well and can effectively resist hydrogen corrosion and prevent hydrogen embrittlement.

3. High mechanical strength: 12Cr1MoVG boiler tubes have high strength and good toughness. Its yield strength is not less than 255MPa, and its tensile strength is between 470-640MPa. It can withstand the huge pressure brought by high-pressure steam and hot water in the boiler system, maintain the stability of the pipe shape, and prevent bulging and rupture due to pressure. This makes it an ideal material for manufacturing high-pressure equipment and pipelines.

4. Good processing performance: 12Cr1MoVG boiler tube has good welding performance and cold processing performance. By matching the appropriate welding process and electrode model, high-quality welding can be achieved, and the weld strength and toughness are close to those of the parent material. At the same time, the pipe allows a certain degree of cold processing, such as cold bending, which is convenient for adjusting the bending degree as needed during the on-site installation of the boiler.

5. Environmentally friendly material: 12Cr1MoVG boiler tube is an environmentally friendly material with relatively small impact on the environment after use and disposal.

6. Application field: 12Cr1MoVG boiler tube is widely used in key parts such as heating surface tubes, headers, steam pipes, etc. of various medium and high pressure power station boilers. Its excellent performance ensures the safe and stable operation of the boiler system.

Boiler tube selection tips:

1. Understand the purpose: When choosing 12Cr1MoVG boiler tubes, you must first understand what environment and purpose the material is suitable for. Different environments and purposes have different requirements for the performance of the tube.

2. Pay attention to quality: When purchasing, you should pay attention to the quality of the product, including the thickness, uniformity, and presence of impurities of the material. Good quality tubes can ensure the stability and service life of the equipment.

3. Choose a formal channel: When purchasing, try to choose a reputable formal channel to avoid buying counterfeit and shoddy products.

4. Consider the price-performance ratio: Although price is an important consideration, it is not the only factor. When purchasing, you also need to weigh price and performance and choose products with high cost performance.

5. Refer to industry standards: Understand and follow relevant industry standards to ensure that the purchased tubes meet relevant regulations and requirements.

6. Consider service: When purchasing, you should also consider after-sales service to ensure that problems can be solved in a timely manner.

Conclusion:

Through the above analysis, we can see that 12Cr1MoVG boiler tubes have significant advantages in high temperature, corrosion resistance, mechanical strength, processing performance, etc., making them widely used in many fields. Understanding and mastering the correct selection skills can help us purchase products with excellent performance and reasonable prices.

Read more: ASTM A178 Boiler tube or Suggestions for selecting boiler tube materials