12Cr1MoV Alloy Steel Plates properties

12Cr1MoV alloy steel plates are known for their high strength, toughness, and high-temperature resistance. 12Cr1MoV alloy steels are commonly used in pressure vessels, power plants, petroleum and chemical industry equipment, and other high-temperature and high-pressure environments.

Chemical Composition

The chemical composition of 12Cr1MoV alloy steel plates is as follows:

- Carbon (C): 0.08% - 0.15%
- Silicon (Si): 0.17% - 0.37%
- Manganese (Mn): 0.40% - 0.70%
- Phosphorus (P): 0.020% max
- Sulfur (S): 0.010% max
- Chromium (Cr): 0.90% - 1.20%
- Molybdenum (Mo): 0.25% - 0.35%
- Vanadium (V): 0.15% - 0.30%

The addition of vanadium improves the strength, toughness, and ability to resist high-temperature deformation of the steel. Chromium and molybdenum also add to the steel’s resistance to high-temperature and corrosion.

Physical Properties

The physical properties of 12Cr1MoV structural alloy steel plates are:

- Density: 7.85 g/cm³
- Melting point: 1420-1460℃
- Specific heat capacity: 460-470 J/(kg·K)
- Thermal conductivity: 41-48 W/(m·K)
- Coefficient of thermal expansion: 11.0-13.0·10⁻⁶/(℃)

Mechanical Properties

The mechanical properties of 12Cr1MoV alloy steel plates are:

- Tensile strength: 400-550 MPa
- Yield strength: 230-275 MPa
- Elongation: 22% min
- Hardness: 179-207 HBW

Applications

GB/T 3077 12Cr1MoV alloy steel plates are commonly used in various industrial applications due to their excellent mechanical properties and corrosion resistance. Some of the applications include:

- Pressure vessels: These steel plates are used in the construction of pressure vessels that are used to store and transport pressurized gases and liquids. They are also used in the fabrication of boilers and heat exchangers.
- Power plants: 12Cr1MoV alloy steel plates are used in the construction of various parts of power plants such as boilers, steam turbines, and generators. These plates can withstand high-temperature and high-pressure conditions, making them suitable for use in power plants.
- Petroleum industry: These steel plates are used in the construction of pipelines, oil rigs, and other equipment used in the petroleum industry. They have excellent resistance to corrosion, making them able to withstand harsh environments and exposure to saltwater.
- Chemical industry: 12Cr1MoV alloy steel plates are also used in the chemical industry to manufacture various equipment such as reactors, vessels, and other parts used in chemical processing.