How to remove rust from LR grade A passage ship steel

SM490A steel plate is a low-alloy high-strength steel. It is a structural steel produced in accordance with Japanese standard JIS G3106. Its strength σb is 490MPa. It is mainly used for buildings, bridges, ships, rail vehicles, petroleum storage tanks, containers and other buildings that require advanced weldability. LR grade A passage ship steel, JIS SM490A steel sheet delivery status: steel plates with a thickness of <80mm, the delivery state is hot-rolled; steel plates with a thickness of ≥80mm, the delivery state is normalized condition.

Compared with LR grade A passage ship steel, boiler steel plates should have the following properties: (1) High medium temperature strength: low and medium pressure boiler drums use steel with a lower yield point, high pressure boilers use steel with a high yield point. (2) Good plasticity, impact toughness, cold bending and welding performance. (3) The notch sensitivity is small, that is, the sensitivity to the stress concentration caused by the opening of the steel plate surface and the welding of the pipe head is small.

At present, the cutting thickness limit of laser cutting is 20 mm. However, it should be noted that oxygen will be added into the laser beam to cut 20 mm thick LR grade A passage ship steel steel plate, which will form a thin oxide film on the cutting surface, which may affect the cutting quality, Therefore, attention should be paid to this point to avoid problems.

We are specialized in offering hot rolled ASTM A516 steel plate, which are used in various engineering applications and can be availed in various grades like carbon steel LR grade A passage ship steel A516 Grade 60 steel plate , A516 Grade 65 steel plate, A516 Grade 70 boiler steel plate, ASTM A516 GRADE 60 plates Trippled Certified, ASTM A516 GRADE 60 Plates Dual Certified. Our boiler plates are available in the form of steel plate, steel sheet, steel sections. If you are interested in LR grade A passage ship steel boiler plate, welcome to contact us.

From the order to the delivery, there are three quality inspections to ensure that the qualified rate of finished products is more than 100%. We promise that every order will be tracked in a timely manner to ensure that customers can receive goods safely and constantly listen to their opinions and suggestions, reflect on our own problems, and let customers feel at ease. We have a large warehouse in Shanghai and Tianjin, which can provide customers with sufficient sources of supply.