JIS G3103 SB450 is a kind of steel plate used for boilers and pressure vessels, which is manufactured under the Japanese Industrial Standards (JIS). This material is widely recognized for its excellent mechanical properties and reliable performance under high-pressure conditions. Below is a detailed overview of its chemical composition, mechanical properties, heat treatment status, available size range, low-temperature impact test, primary applications, and related supply cases from TJC Steel Group.

Chemical Composition:

The chemical composition of JIS G3103 SB450 is strictly controlled to ensure the quality and performance of the steel. The typical chemical composition is as follows:

· Carbon (C): 0.15-0.21%

· Silicon (Si): 0.15-0.35%

· Manganese (Mn): 0.90-1.20%

· Phosphorus (P): ≤ 0.030%

· Sulfur (S): ≤ 0.030%

· Nickel (Ni): ≤ 0.30%

· Chromium (Cr): ≤ 0.30%

· Molybdenum (Mo): ≤ 0.08%

· Copper (Cu): ≤ 0.30%

· Niobium (Nb): ≤ 0.020%

· Vanadium (V): ≤ 0.020%

· Titanium (Ti): ≤ 0.030%

Mechanical Properties:

The mechanical properties of SB450 are crucial for its application in high-pressure environments. The typical mechanical properties are as follows:

· Tensile Strength (MPa): 490-610

· Yield Strength (MPa): ≥ 295

· Elongation (%): ≥ 22

· Impact Value (J): ≥ 34 (at 0°C)

Heat Treatment Status:

SB450 steel plates are supplied in the normalized condition to ensure uniformity in mechanical properties throughout the thickness of the plate.

Available Size Range:

TJC Steel Group offers JIS G3103 SB450 steel plates in a wide range of sizes to meet various project requirements. The typical available size range is as follows:

· Thickness: 6mm - 300mm

· Width: 1500mm - 4020mm

· Length: 3000mm - 18000mm

Low-Temperature Impact Test:

SB450 steel plates are subjected to a low-temperature impact test to ensure their toughness and ductility at sub-zero temperatures. The test is conducted at 0°C, and the minimum impact value is 34J.

Primary Applications:

Due to its excellent mechanical properties and resistance to high-pressure conditions, JIS G3103 SB450 is widely used in the fabrication of boilers, pressure vessels, and other related equipment in industries such as power generation, petrochemical, and shipbuilding.

TJC Steel Group Supply Cases:

TJC Steel Group has supplied JIS G3103 SB450 steel plates to various clients worldwide, including power plants, chemical factories, and shipyards. One notable supply case involved the delivery of 500 tons of SB450 steel plates to a power plant in Southeast Asia, where the steel plates were used to construct high-pressure boilers. The successful completion of this project demonstrated TJC's capability to provide high-quality steel products and reliable services.

In conclusion, JIS G3103 SB450 is a high-quality steel plate for boilers and pressure vessels, offering excellent mechanical properties and reliable performance. TJC Steel Group is a trusted supplier of SB450 steel plates, providing a wide range of sizes and delivering high-quality products to clients worldwide.