JIS G3103 SB480M is a kind of steel plate used for boilers and pressure vessels, which is specified under the Japanese Industrial Standards (JIS). This grade of steel plate is designed to provide excellent performance in high-temperature environments and is commonly used in the fabrication of pressure equipment that requires high strength and good weldability.

Chemical Composition:

The chemical composition of JIS G3103 SB480M is strictly controlled to ensure the material's mechanical properties and weldability. The typical chemical composition is as follows:

· Carbon (C): 0.12-0.20%

· Silicon (Si): 0.15-0.35%

· Manganese (Mn): 0.90-1.50%

· Phosphorus (P): ≤ 0.030%

· Sulfur (S): ≤ 0.030%

· Nickel (Ni): ≤ 0.30%

· Chromium (Cr): 0.05-0.30%

· Molybdenum (Mo): ≤ 0.08%

· Copper (Cu): ≤ 0.30%

· Niobium (Nb): ≤ 0.020%

· Vanadium (V): ≤ 0.020%

· Boron (B): ≤ 0.004%

Mechanical Properties:

The mechanical properties of SB480M steel plate are crucial for its application in pressure vessels and boilers. The following are the typical mechanical properties:

· Tensile Strength: 490-610 MPa

· Yield Strength: ≥ 295 MPa

· Elongation: ≥ 22%

· Impact Energy (Charpy V-notch test at 0°C): ≥ 27J

Heat Treatment:

The steel plates are normally supplied in the normalized condition. Normalizing involves heating the steel to a temperature above its 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 G3103 SB480M steel plates in a wide range of sizes to meet various project requirements. The typical available dimensions are:

· Thickness: 6mm to 300mm

· Width: 1500mm to 4000mm

· Length: 3000mm to 18000mm

Low-Temperature Impact Test:

SB480M steel plates are subjected to a low-temperature impact test to ensure their toughness and resistance to brittle fracture at low temperatures. The standard Charpy V-notch test is conducted at 0°C, with a minimum impact energy of 27J.

Main Applications:

Due to its excellent mechanical properties and resistance to high-temperature environments, SB480M steel plate is widely used in the following applications:

· Boilers

· Pressure vessels

· Heat exchangers

· Steam drums

· Pressure piping

TJC Steel Group Supply Cases:

TJC Steel Group has extensive experience in supplying JIS G3103 SB480M steel plates to various industries. One notable supply case involved the delivery of SB480M steel plates for a large-scale petrochemical project. The plates were used to fabricate high-pressure boilers and pressure vessels, demonstrating TJC's capability to meet stringent quality standards and deliver materials that can withstand harsh operating conditions.

In conclusion, JIS G3103 SB480M is a high-quality steel plate designed for critical applications in boilers and pressure vessels. With its precise chemical composition, excellent mechanical properties, and reliable performance at high temperatures, SB480M is a trusted choice for industries requiring robust and safe pressure equipment. TJC Steel Group's commitment to quality and customer satisfaction makes it a reliable supplier of SB480M steel plates for various demanding applications.