As a high-quality, high-temperature, high-pressure alloy steel pipe, 10Cr9MoW2VNbBN alloy steel pipes are increasingly used in the industrial sector. With their unique chemical composition, excellent physical properties, and wide range of applications, this alloy steel pipe has become a shining pearl among steel materials.
Details of 10Cr9MoW2VNbBN alloy steel pipes
1. 10Cr9MoW2VNbBN alloy steel pipes comply with the standard GB/T5310, Seamless Steel Pipes for High-Pressure Boilers. The pipe material must comply with the requirements of TSG D7002, Rules for Type Testing of Pressure Piping Components.
Chemical composition of 2.10Cr9MoW2VNbBN alloy steel pipe: Carbon: 0.07-0.13%, Silicon: ≤0.50%, Manganese: 0.30-0.60%, Chromium: 8.5-9.5%, Molybdenum: 0.30-0.60%, Vanadium: 0.15-0.25%, Boron: 0.0010-0.0060%, Nickel: ≤0.40%, Aluminum: ≤0.040%, Copper: ≤0.20%, Niobium: 0.04-0.09%, Nitrogen: 0.030-0.070%, Tungsten: 1.50-2.0%, Phosphorus ≤0.020%, Sulfur ≤0.010
3.10Cr9MoW2VNbBN alloy steel pipe heat treatment: Normalizing at ≥1040°C, Tempering at ≥730°C. 4.10Cr9MoW2VNbBN alloy steel pipe: Tensile strength: ≥620, yield strength: ≥440, elongation after fracture: longitudinal: ≥20, transverse: ≥18, longitudinal impact strength: ≥40, transverse impact strength: ≥27, Brinell hardness: ≤250 HBW, Vickers hardness: ≤265, Rockwell hardness: ≤25.
5.10Cr9MoW2VNbBN alloy steel pipe specifications: Outer diameter: 57mm-762mm, wall thickness: 3.0mm-140mm
6.10Cr9MoW2VNbBN alloy steel pipe: Production methods: Hot rolling, forging, Delivery condition: Heat treated
First, the chemical composition of 10Cr9MoW2VNbBN alloy steel pipe: 10Cr9MoW2VNbBN alloy steel pipe is primarily composed of iron, carbon, and various alloying elements, including chromium, molybdenum, tungsten, vanadium, niobium, and boron. These elements each play an important role in the alloy steel pipe. Chromium significantly improves the hardness and corrosion resistance of alloy steel, enabling it to maintain stable performance in harsh operating environments. Molybdenum enhances the hardness, strength, and wear resistance of alloy steel, enabling it to maintain excellent mechanical properties even under high pressure and high temperature. Furthermore, elements such as tungsten, vanadium, niobium, and boron also play an indispensable role in enhancing the performance of alloy steel pipes.
Second, the physical properties of 10Cr9MoW2VNbBN alloy steel pipes
It is precisely because of the synergistic effect of these alloying elements that 10Cr9MoW2VNbBN alloy steel pipes possess excellent physical properties. First, their high tensile strength and yield strength enable them to maintain excellent mechanical properties in high-temperature and high-pressure environments. Second, their excellent wear resistance allows them to maintain stable performance in environments with high friction, extending their service life. Furthermore, this alloy steel pipe has excellent corrosion resistance and can withstand long-term use in acidic and alkaline environments without loss of mechanical properties. In addition to its excellent physical properties, 10Cr9MoW2VNbBN alloy steel pipes also have good processability. Its properties can be further enhanced through processes such as heat treatment and surface treatment, improving its corrosion and wear resistance. Furthermore, this alloy steel pipe is available in a variety of forms, including plates, rods, tubes, strips, and wire rods, greatly facilitating its application in various fields.
Third, Applications of 10Cr9MoW2VNbBN Alloy Steel Pipes
10Cr9MoW2VNbBN alloy steel pipes have a wide range of applications. They are primarily used in the manufacture of high-temperature and high-pressure steam pipes, heat exchangers, reactors, and other equipment. This equipment plays a vital role in the petroleum, chemical, metallurgical, electric power, and aviation industries. In these fields, 10Cr9MoW2VNbBN alloy steel pipes, with their excellent resistance to high temperatures, high pressures, and corrosion, provide reliable assurance for the stable operation of this equipment.
Furthermore, 10Cr9MoW2VNbBN alloy steel pipes possess high toughness and impact resistance, making them less susceptible to fracture or deformation when subjected to high pressure, high temperature, and high stress environments. This characteristic gives it irreplaceable advantages in specialized operating environments. For example, in high-temperature, high-pressure environments like nuclear power plants and thermal power plants, it can reliably withstand the erosion of high-temperature, high-pressure steam and corrosive media, ensuring safe operation of the equipment.
Notably, 10Cr9MoW2VNbBN alloy steel pipe also exhibits excellent oxidation resistance. In high-temperature environments, it resists oxidative corrosion while maintaining its original structure and performance. This characteristic has led to its widespread use in equipment that requires long-term high-temperature operation, such as boilers and furnace tubes.
In short, 10Cr9MoW2VNbBN alloy steel pipe, with its unique chemical composition, excellent physical properties, and wide range of applications, has become an indispensable material in the industrial sector. With technological advancements and industrial development, we believe that the performance and application areas of this alloy steel pipe will continue to expand and improve, contributing further to industrial development.
Post time: Sep-12-2025