P295GH 1045 steel plate is a high-quality pressure vessel steel plate, which is widely used in the manufacture of pressure vessels and boiler equipment under medium and high temperature conditions. Among them, P295GH is a name based on the European EN 10028-2 standard, which is used to indicate a carbon-manganese steel for welded structures designed for high temperature and high pressure environments. "P" stands for pressure vessel steel plate, "295" indicates that its minimum yield strength is 295MPa, and "GH" indicates that it has excellent high temperature resistance and is suitable for use under high temperature conditions. 1045 indicates that it is a carbon structural steel named according to the American ASTM AISI standard, with a carbon content of about 0.45%. This medium carbon steel material has a good balance of strength and toughness, and is particularly suitable for industrial equipment that needs to withstand high strength and high toughness.

EN10028-2 P295GH Pressure Vessel And Boiler Steel Plate Chemical Composition

EN10028-2 P295GH Pressure Vessel And Boiler Steel Plate Mechanical Property

Good Mechanical Strength
The minimum yield strength of P295GH 1045 steel plate is 295MPa, and the tensile strength range is 510-650MPa. Its high strength comes from a combination of medium carbon content (carbon content is about 0.45%) and hot rolling process. The appropriate amount of carbon content in medium carbon steel enhances the hardness of the material, and the hot rolling process makes the internal grain structure finer (the average diameter of the grains is less than 15 microns) through repeated heating and cooling. Simply put, the finer the grains, the stronger the material. This makes it an ideal material for pressure vessels and storage tanks, effectively handling the high pressure inside the vessel and reducing cracks or deformation caused by insufficient strength.

Excellent Welding Performance
P295GH 1045 steel plate shows extremely low tendency of hot cracking during the welding process, and its carbon equivalent value (CEV) is only between 0.35-0.40, which is significantly lower than the threshold value (0.45) that easily causes cracks. The carbon equivalent value is an important indicator of the weldability of steel plates. The lower the value, the less likely it is that cracks will occur during the welding process. This data shows that the steel plate is suitable for a variety of welding methods (such as manual welding, automatic welding and gas shielded welding), and the impact toughness of the welded joint can reach 40J (under -20°C conditions). Excellent welding performance reduces the incidence of welding defects, making it widely used in the manufacturing of high-pressure pipelines and complex vessel structures.

Excellent Corrosion Resistance
P295GH 1045 steel plate has undergone standard anti-corrosion treatment, which mainly includes sandblasting pre-treatment and surface coating technology. Sandblasting can remove the oxide layer and impurities on the surface of the material and enhance the adhesion of the coating, while the surface coating uses epoxy resin coating to block the intrusion of corrosive media. Its salt spray test results show that in a simulated corrosion environment for 500 consecutive hours, the oxidation thickness of the material surface does not increase by more than 30 microns, and the corrosion resistance is much higher than that of ordinary carbon steel. Anti-corrosion treatment This treatment ensures that the steel plate has long-lasting corrosion resistance in acidic or marine environments and is suitable for use in chemical storage tanks or marine engineering pipelines.

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