In order to ensure the performance of ABS grade D and E shipbuilding steel plate and ship plate, microalloying technology is adopted. Nb, V, Ti and other alloy elements are added to ABS grade D and E shipbuilding steel plate, combined with controlled rolling process to achieve refined crystal The purpose of improving the strength and toughness of ABS grade D and E shipbuilding steel plate.
Due to the limitation of billet shape and billet weight, many manufacturers cannot produce extra-thick ship plates. Our company can use large slabs or large steel ingots to roll ship plates with a thickness greater than 50mm.
ABS grade D and E shipbuilding steel plate require good low-temperature toughness and good welding performance. This must first be guaranteed in the steel smelting process, and secondly, an effective controlled rolling and controlled cooling process must be implemented.
In recent years, major domestic iron and steel companies have fully realized the importance of improving the inherent quality of ABS grade D and E shipbuilding steel plate, relying on the advancement of smelting technology to improve in such links as hot metal desulfurization and slagging, steelmaking and hydrogen blowing, and vacuum refining outside the furnace. Significantly reduces the content of harmful elements and impurities in ABS grade D and E shipbuilding steel plate.
