What kind of steel is used to make ships

Shipbuilding mainly purchases hull plates, flat steel, bulb flat steel, equilateral angle steel, unequal angle steel, round steel, pipe rivets, fasteners, paint, etc.

Application Types of Marine Steel:
In order to meet the different needs of the structure of each part of the hull, there are mainly the following types of marine steel in practical applications:

1 steel plate
The steel plate is the main component of the hull structure, accounting for about 60%-65%, such as the hull plate, deck plate and subdivision partition. Generally, the steel plate with a thickness of 4mm and below is called a thin plate, and the plate above 4mm is called a thin plate. thick plate. The size range of marine steel plate is generally: thickness 6-40mm, width 1 200b3 000rDATI, length 6000, 14000mm.

2 section steel
The proportion of section steel (standard steel section) in the hull structure is second only to the steel plate, about 35%-40%, and is mainly used as the hull frame. According to its cross-sectional shape, it can be divided into: flat steel, bulb flat steel, angle steel, I-beam, T-shaped steel and channel steel.

3 Cast steel and forged steel
The fore and stern posts, anchors, fairleads, bollards and stern tubes of ships are often made of cast steel, while the rudder stocks, shafts and other simple-shaped components of ships are mostly made of forging.
The mechanical strength and toughness of forged steel are better than those of cast steel, but due to the limitation of processing technology,

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