JIS G3115 SPV355 is a kind of steel plate for pressure vessels, which is widely used in the manufacture of petroleum, chemical, gas separation, gas storage, and transportation containers or other similar equipment. This grade of steel plate is designed to provide exceptional strength and durability under a range of temperature conditions, making it suitable for applications in low-temperature environments.

Chemical Composition:

The chemical composition of JIS G3115 SPV355 is strictly controlled to ensure the steel's 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%

· Titanium (Ti): ≤ 0.03%

· Vanadium (V): ≤ 0.05%

· Boron (B): ≤ 0.004%

· Aluminum (Al): ≥ 0.020%

Mechanical Properties:

The mechanical properties of SPV355 are crucial for its application in pressure vessels. The following are the typical mechanical properties:

· Yield Strength: ≥ 355 MPa

· Tensile Strength: 510 - 680 MPa

· Elongation: ≥ 18%

· Impact Energy (at -10°C): ≥ 47J

Heat Treatment:

SPV355 steel plates are generally supplied in the normalized condition. Normalization is a heat treatment process that involves heating the steel to a temperature above its upper critical point and then cooling it in air. This process refines the grain structure and improves the mechanical properties of the steel.

Available Dimensions:

TJC Steel Group offers JIS G3115 SPV355 pressure vessel steel plates 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:

SPV355 steel plates are subjected to a low-temperature impact test at -10°C to ensure their toughness and resistance to brittle fracture at low temperatures. The minimum impact energy required is 47J.

Main Applications:

Due to its excellent mechanical properties and resistance to low-temperature environments, JIS G3115 SPV355 is commonly used in the following applications:

· Pressure Vessels

· Boilers

· Heat Exchangers

· Storage Tanks

· Liquefied Petroleum Gas Cylinders

· Nuclear Reactor Components

TJC Steel Group Supply Case:

TJC Steel Group has supplied JIS G3115 SPV355 steel plates to various industries, including petrochemical, energy, and infrastructure. One notable supply case involved the delivery of 500 tons of SPV355 steel plates for a large-scale petrochemical project in Southeast Asia. The steel plates were utilized in the construction of high-pressure reactors, where their superior strength and low-temperature toughness were critical to the project's success.

In conclusion, JIS G3115 SPV355 is a high-quality pressure vessel steel plate that meets stringent international standards. TJC Steel Group is committed to providing reliable and high-performance steel materials for critical applications worldwide.