JIS G3115 SPV490 is a kind of steel plate for pressure vessels designed for use in environments where high strength and excellent toughness are required, especially at low temperatures. This grade is widely used in the fabrication of welded pressure vessels and industrial boilers where safety and reliability are paramount.

Chemical Composition:

The chemical composition of JIS G3115 SPV490 is strictly controlled to ensure the desired mechanical properties and weldability. The typical chemical composition is as follows:

· Carbon (C): ≤ 0.20%

· Silicon (Si): ≤ 0.55%

· Manganese (Mn): ≤ 1.60%

· Phosphorus (P): ≤ 0.025%

· Sulfur (S): ≤ 0.015%

· Niobium (Nb): ≤ 0.05%

· Vanadium (V): ≤ 0.05%

· Titanium (Ti): ≤ 0.03%

· Boron (B): ≤ 0.004%

· Aluminum (Al): ≥ 0.020%

· Nitrogen (N): ≤ 0.020%

Mechanical Properties:

The mechanical properties of SPV490 are characterized by its high strength and good toughness, which are crucial for pressure vessel applications. The typical mechanical properties are as follows:

· Yield Strength: ≥ 315 MPa

· Tensile Strength: 490 - 610 MPa

· Elongation: ≥ 20%

· Impact Energy (at -40°C): ≥ 47 J

Heat Treatment:

SPV490 steel plates are normally supplied in the as-rolled condition. However, they can be normalized or normalized and tempered to enhance their mechanical properties if required by specific applications.

Available Dimensions:

TJC Steel Group offers JIS G3115 SPV490 in a wide range of sizes to meet various project requirements. The typical available dimensions are:

· Thickness: 6mm - 300mm

· Width: 1500mm - 4020mm

· Length: 3000mm - 18000mm

Low-Temperature Impact Test:

SPV490 steel plates are subjected to a low-temperature impact test at -40°C to ensure their toughness and reliability in cold environments. The minimum impact energy value is 47 J, as mentioned above.

Main Applications:

Due to its excellent mechanical properties and resistance to low-temperature brittle fracture, SPV490 is commonly used in the following applications:

· Pressure vessels

· Industrial boilers

· Heat exchangers

· Storage tanks

· Liquefied petroleum gas cylinders

· Nuclear power plant components

TJC Steel Group Supply Cases:

TJC Steel Group has a proven track record of supplying high-quality SPV490 steel plates to various industries. One notable supply case involved the delivery of 500 tons of SPV490 plates for a petrochemical plant in Southeast Asia. The steel plates were used in the construction of high-pressure reactors, where their superior strength and toughness were critical for ensuring the safety and longevity of the equipment.

In conclusion, JIS G3115 SPV490 is a premium grade of steel plate designed for demanding applications in the pressure vessel industry. TJC Steel Group is committed to providing this high-quality material to clients worldwide, ensuring that their projects meet the highest standards of safety and performance.