SPV450 Hot‐rolled Steel Plates with Improved Weldability

JIS G3115 SPV450 is a specific grade of hot-rolled steel plate manufactured to the Japanese Industrial Standards (JIS) G3115 for pressure vessels used in intermediate temperature service. It has a minimum yield strength of 450MPa and a tensile strength of 570−700MPa. The material is known for its improved weldability and is widely used in industries like petroleum, chemical, and power generation for equipment such as reactors, boilers, and heat exchangers.

• Steel Standard:JIS G3115
• Rolling Type:Boiler steel plate,Pressure vessel steel plate
• Thickness:6mm-350mm
• Width:1500mm-4200mm
• Length:3000mm-18000mm
• Heat Treatment:Normalized,Quenched+Tempered

SPV450 steel plates exhibit excellent mechanical properties, mainly including the following:

High Strength

It has a yield strength of ≥450MPa (which may vary depending on specific thickness and heat treatment conditions), enabling it to withstand large pressures and loads.

Good Toughness

It possesses excellent impact toughness, allowing it to absorb a large amount of energy when subjected to impacts, thereby reducing the risk of equipment damage and personnel casualties.

Excellent Welding Performance

It features good welding performance as well as hot and cold working properties, facilitating the manufacturing of pressure vessels with complex shapes and structures.

Fatigue Resistance

It can maintain good performance even under cyclic stress, and is less prone to fatigue failure.

Corrosion Resistance

It can resist corrosion from various environmental media, extending the service life of equipment.

Chemical Reaction Vessels

JIS G3115 SPV450 Boiler and Pressure Vessel Steel Plate is used in synthesis reactions (such as ammonia synthesis towers in fertilizer plants and polymerization reactors in chemical plants). It needs to withstand high temperatures and pressures (e.g., the ammonia synthesis tower operates at a pressure of 30MPa and a temperature of 450℃) and medium corrosion (such as hydrogen and acid gases) to ensure no leakage or structural failure occurs during the reaction process.

Petrochemical Storage Tanks and Towers

JIS G3115 SPV450 Low Temperature Pressure Vessel Steel Plate is used in storage tanks for crude oil, liquefied natural gas (LNG), and liquefied petroleum gas (LPG), as well as rectification towers and absorption towers in petroleum refining: normal temperature and pressure storage tanks (such as crude oil tanks); low-temperature storage tanks (such as LNG storage tanks, with temperatures as low as -162℃) require steel plates with excellent low-temperature toughness to avoid brittle fracture of steel at low temperatures; high-pressure hydrogenation towers (petrochemical hydrofining process).

Heat Exchange Vessels

JIS G3115 SPV450 High-quality Boiler Steel Plate is used in equipment for medium heat exchange (such as shell-and-tube heat exchangers and plate heat exchangers). Their shells and tube sheets need to withstand alternating hot and cold shocks, ensure fatigue resistance, and avoid weld cracking caused by frequent temperature changes.

Metallurgical Industry

The "blast furnace hot blast stove" in steel plants (which stores high-temperature hot air, with a pressure of 0.5-1.5MPa and a temperature of 1200℃) uses high-temperature resistant JIS G3115 SPV450 hot-rolled plate for its shell; the "autoclave" in non-ferrous metal smelting (such as the leaching autoclave in hydrometallurgical copper smelting) needs to be resistant to acid corrosion, and JIS G3115 SPV450 pressure vessel steel plate is commonly used.

JIS G3115 SPV450 Boiler steel plate,JIS G3115 SPV450 Pressure Vessel Steel plate, JIS G3115 SPV450 Storage Tanks Steel plate. JIS G3115 SPV450 Heat Exchanger Steel Plate .

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

Click to get a free sample

If you want to learn more about GNEE's products, you can send an email to alloy@gneesteelgroup.com. We are more than happy to assist you.