ASTM A131 AH32 marine steel plate is a high-strength structural steel that complies with American ASTM standards. Often used in shipbuilding projects, especially hull construction. It has excellent strength and toughness and performs well in marine environments. It usually needs to go through a series of processing techniques such as hot rolling, cutting, welding and anti-corrosion treatment to ensure its quality and performance.
The processing process of ASTM A131 AH32 marine steel plate usually includes the following steps:
Smelting raw materials: Put an appropriate proportion of iron ore, coke, limestone and other raw materials into the blast furnace for smelting to obtain pig iron.
Continuous Casting: Pig iron is cast into square or round billets through a continuous casting process.
Hot rolling: The billet is heated to an appropriate temperature and then rolled through the rolling mill roller table into a plate of specified size and shape.
Flaw detection: Ultrasonic flaw detection is performed on the hot-rolled plates to detect internal defects.
Surface treatment: Use rust remover to remove surface oxides and ensure surface finish.
Cutting: Cut the steel plate into required length and width as per requirement.
Forming: The steel plate is formed into various components required for the hull through cold bending, bending and other processes.
Welding: Welding components to ensure a solid structure.
Stress relief: Eliminate residual stress generated during the welding process through heat treatment or other means.
Shot blasting: Use sandblasting equipment to clean the surface of the steel plate and increase the adhesion between the steel plate and the anti-corrosion coating.
Coating: Apply anti-corrosion coating on the surface of ASTM A131 AH32 marine steel plate to extend its service life.
Quality inspection: Conduct multiple quality inspections on finished products such as appearance inspection, dimensional measurement, chemical composition analysis, and mechanical property testing.
Packaging and shipping: Pack according to customer requirements and arrange shipment to destination.
Together, these steps ensure that the manufacturing process of ASTM A131 AH32 marine steel plate complies with relevant standards and technical requirements.
