12Cr1MoV alloy structural steel

Introduction

12Cr1MoV alloy structural steel is an ultra-high strength, rust-proof, wear-resistant and heat-resistant alloy structural steel developed and supplied by China. The steel is mainly composed of Cr and Mo, and commonly used in industrial production and production of transportation industries, especially for power and chemical industry with temperature rising and needing wear resisting.

Overview

12Cr1MoV is a kind of ultra-high strength and heat-resistant alloy structural steels, which are characterized by low carbon content, high-temperature strength, corrosion resistance and oxidation resistance, and good welding performance. Among them, the relatively high content of chromium and molybdenum give the steel good oxidation resistance at high temperatures and good resistance to parts used in chemical plants. 12Cr1MoV can also be used in large machinery components with high temperature and high pressure, such as boilers and superheater tubes in power plants.

Composition

12Cr1MoV alloy structural steel is mainly composed of carbon (C), silicon (Si), manganese (Mn), sulfur (S), phosphorus (P), chromium (Cr), molybdenum (Mo), vanadium (V), and nickel (Ni). The main chemical composition of 12Cr1MoV alloy structural steel is listed in the following table:

C: 0.090-0.15

Si: 0.17-0.37

Mn: 0.30-0.60

S: ≤0.030

P: ≤0.030

Cr: 0.80-1.10

Mo: 0.25-0.50

V: 0.15-0.25

Ni: ≤0.50

Mechanical Properties

The strength and ductility of 12Cr1MoV alloy structural steel usually increase with decrease of temperature (A) and the steel is usually used at the temperature of 540℃~590℃. The tensile strength and yield strength are generally 600-1000MPa and 400MPa, respectively, and the elongation is around 16%.

Applications

12Cr1MoV alloy structural steel has the characteristics of high strength and excellent competition, so it has become an important material used in manufacturing boiler headers in power plants. In addition, it is also used in the process of petrochemical industry and transportation industry under high temperature.

Moreover, 12Cr1MoV is also widely used in manufacturing transportation parts and various mechanical components, such as turbine cylinders, high-pressure pipeline and blade.

Conclusion

12Cr1MoV alloy structural steel is a kind of special steel which is characterized by high-temperature strength, excellent corrosion resistance, oxidation resistance and wear resistance. The steel is used in many important areas such as boiler header in power plant, process of petrochemical industry, transportation industry and production of mechanical components. Thus, 12Cr1MoV alloy structural steel has become one of the most widely used materials in the industrial and transportation fields.

12Cr1MoV Steel

12Cr1MoV steel is a high-quality carbon structural steel, which is widely used in petroleum, chemical industry and boiler, and other industries. It is created based on MB12Cr1MoV steel that is produced by the Shanghai Baosteel Co., Ltd; this steel mainly contains the following components: 0.11 to 0.17 percent carbon, 0.30 to 0.60 percent silicon, 0.90 to 1.20 percent manganese, 0.40 to 0.55 percent chromium, 0.80 to 1.10 percent molybdenum, and less than 0.035 percent phosphorus, sulfur, and oxygen.

The main feature of 12Cr1MoV steel is its ability to resist high temperature and pressure. This steel has excellent mechanical properties, good toughness, and it is resistant to thermal fatigue and creep deformation. It is widely used in the manufacture of boilers, superheaters, and reheaters, as well as components that are subjected to high temperatures and pressures, such as small and medium pressure pipes, steam turbine valve and turbine blades.

This steel also has a relatively low cost and is easy to machine, weld, and cut. It has a high hardness, and its wear resistance is improved after heat treatment. The steel also has good corrosion and oxidation resistance, and it can be used in the manufacture of pressure vessels and heat pumps.

In conclusion, 12Cr1MoV steel is a cost-effective and efficient steel that has excellent mechanical properties, good corrosion and oxidation resistance, and it is resistant to thermal fatigue and creep deformation. It is used in the manufacture of boilers, superheaters, reheaters, pressure vessels, heat pumps, and turbine blades.