Why do 15CrMoG alloy high-pressure boiler steel pipes have oxidation resistance

Product specifications of 15CrMoG alloy high-pressure boiler steel pipes: Outer diameter 21.3mm~1020mm, wall thickness 2.0~150mm.
15CrMoG alloy high-pressure boiler steel pipes should meet the requirements of TSG D7002 type test rules for pressure piping components.
Chemical composition of 15CrMoG alloy high-pressure boiler steel pipes: Carbon: 0.12~0.18, Silicon: 0.17~0.37, Manganese: 0.40~0.70, Chromium: 0.80~1.10, Molybdenum: 0.40~0.55, Nickel: ≤0.30, Copper: ≤0.20, Phosphorus: ≤0.025, Sulfur: ≤0.020.
Heat treatment of 15CrMoG alloy high-pressure boiler steel pipes: 900℃~960℃, normalizing; tempering: 660℃~730℃.
Mechanical properties of 15CrMoG alloy high-pressure boiler steel pipes: Tensile strength: 440~640 Nm, Yield strength ≥235 Nm, Elongation after fracture (longitudinal) ≥21%, Elongation after fracture (transverse) ≥19%, Impact energy (longitudinal) ≥40%, Impact energy (transverse) ≥27%, Brinell hardness ≤170 HBW, Vickers hardness ≤180 HV, Rockwell hardness ≤88 HRB.
Production methods for 15CrMoG alloy high-pressure boiler steel pipes: Hot rolling, cold drawing, hot expansion. Delivery condition: Heat-treated.

First, let's look at the composition of 15CrMoG alloy high-pressure boiler steel pipes. 15CrMoG alloy high-pressure boiler steel pipes are mainly composed of alloying elements such as chromium and molybdenum. The addition of these alloying elements greatly enhances the oxidation resistance of 15CrMoG alloy high-pressure boiler steel pipes, enabling them to maintain excellent corrosion and oxidation resistance under high temperature and high pressure environments. At the same time, its high strength and good plasticity also ensure its stable operation under high pressure and high-temperature environments.

In the petroleum industry, 15CrMoG alloy high-pressure boiler steel pipes are widely used. During oil extraction and processing, well pipes, casings, and pipelines all need to withstand high-temperature and high-pressure environments, and 15CrMoG alloy high-pressure boiler steel pipes, with their superior performance, ensure the smooth progress of oil extraction and processing. Furthermore, it plays a vital role in the chemical industry, its corrosion resistance allowing it to adapt to various complex chemical environments.

In the power industry, 15CrMoG alloy high-pressure boiler steel pipes are indispensable. Boilers, superheaters, reheaters, and other equipment in thermal power plants all require this type of 15CrMoG alloy high-pressure boiler steel pipe. Under high-temperature and high-pressure working environments, it maintains stable performance, providing strong support for the smooth operation of power production.

With continuous technological advancements, the production process of 15CrMoG alloy high-pressure boiler steel pipes is also constantly being optimized and improved. From smelting to continuous casting, rolling, and heat treatment, every production stage undergoes strict quality control to ensure that the product's performance and quality reach their optimal state. This refined manufacturing process gives 15CrMoG alloy high-pressure boiler steel pipes superior performance, enabling them to meet the demands of various complex and demanding working environments.

Of course, the selection and use of 15CrMoG alloy high-pressure boiler steel pipes also need to be based on specific working environments and requirements. Different working environments and media characteristics will place different demands on the pipe material. Therefore, during selection and use, we need to fully consider the pipeline's operating temperature, pressure rating, media characteristics, and other special requirements to ensure the pipeline's safety and reliability.

Furthermore, with the development of clean energy, 15CrMoG alloy high-pressure boiler steel pipes have also been widely used in new energy fields such as solar and wind power. They play a vital role in the manufacturing and operation of new energy equipment, providing strong support for the development of new energy.

In conclusion, 15CrMoG alloy high-pressure boiler steel pipes, as an excellent industrial material, have wide applications in various fields such as petroleum, chemical, and power. Their excellent high-temperature resistance, pressure resistance, and oxidation resistance, along with their refined manufacturing process, enable them to meet the demands of various complex and demanding working environments. In the future, with the continuous advancement of science and technology and the continuous development of industry, the application fields of 15CrMoG alloy high-pressure boiler steel pipes will be further expanded, and their importance in the industrial field will become more prominent.