ABS Grade A B D E Shipbuilding steel plate

ABS (American Bureau of Shipping) Grade A, B, D, and E are common grades of shipbuilding steel plates. Here's a brief description of each grade:

ABS Grade A: This is the highest strength grade among the four mentioned. It has a minimum tensile strength of 58,000-71,000 psi (400-490 MPa) and a minimum yield strength of 34,000 psi (235 MPa). Grade A steel is primarily used for the construction of structural parts of ships.

ABS Grade B: Grade B steel has slightly lower strength compared to Grade A. It has a minimum tensile strength of 70,000-90,000 psi (480-620 MPa) and a minimum yield strength of 34,000 psi (235 MPa). It is also commonly used for shipbuilding applications.

ABS Grade D: Grade D steel offers further reduction in strength compared to Grade B. It has a minimum tensile strength of 74,000-94,500 psi (510-650 MPa) and a minimum yield strength of 36,000 psi (250 MPa). Grade D steel is typically used for structural and engineering purposes in shipbuilding.

ABS Grade E: This grade has similar strength properties to Grade D. It has a minimum tensile strength of 74,000-94,500 psi (510-650 MPa) and a minimum yield strength of 39,000 psi (275 MPa). Grade E is often utilized for offshore structures and marine equipment.

These grades are approved by the American Bureau of Shipping and are widely recognized and used in the shipbuilding industry. It's important to consult specific design and construction standards, as well as the requirements of classification societies, for detailed information on the use and application of these shipbuilding steel plates.