An acid-resistant steel plate for storage equipment and its preparation method

Abstract

The invention provides an anti-acid steel plate for storage equipment and a preparation method of the anti-acid steel plate. The steel plate is prepared from the following components in percentage by mass: 0.31-0.33% of C, 0.45-0.47% of Mn, 0.07-0.09% of Si, 0.006-0.008% of P, 0.002-0.005% of S, 0.06-0.08% of Nb, 0.07-0.09% of V, 0.05-0.07% of Ti, 0.08-0.1% of Al, less than or equal to 0.006% of N, less than or equal to 0.00020% of H, 0.012-0.015% of Cu, 0.4-0.6% of Cr, 0.23-0.25% of Mo and the balance of Fe. According to the anti-acid steel plate, a reasonable two-phase ratio as well as fine ferrite and dispersively distributed pearlite of the steel plate can be obtained and the formation of banded structure is avoided; and without the banded structure, the acid resistance is improved.

Description

technical field

[0001] The invention relates to a steel plate and a preparation method thereof, in particular to an acid-resistant steel plate used for storage equipment and a preparation method thereof. Background technique

[0002] Storage equipment refers to the technical devices and tools that can meet the needs of storing and keeping items. Storage equipment is the main symbol of the level of storage and logistics technology. Modern storage equipment reflects the development of modern storage and logistics technology. The shelves in the storage equipment are more commonly used equipment. Due to the storage needs of special materials, the use conditions and environments of the shelves are becoming more and more severe, and the thickness of the steel plate is becoming thicker and thicker. Requirements are also constantly increasing. Especially when used to store some acidic goods, the storage equipment is often corroded, resulting in damage to the storage equipment in a ...