A588 Grade A steel plate and A588 Grade B steel plate are two different grades of high strength low alloy corrosion resistant steel plate. Both A588 Grade A steel plate and A588 Grade B steel plate meet the requirements of ASTM A588 standard. The difference between A588 Grade A steel plate and A588 Grade B steel plate is mainly in the details.
The difference between A588 Grade A steel plate and A588 Grade B steel plate is mainly reflected in the following aspects.
chemical composition
The chemical composition of A588 Grade A steel plate and A588 Grade B steel plate is slightly different. A588 Grade B steel has a higher copper content than A588 Grade A steel, and A588 Grade A has a higher phosphorus content than A588 Grade B steel.
Mechanical behavior
The mechanical properties of A588 Grade A steel plate and A588 Grade B steel plate are also slightly different. The tensile strength of A588 Grade B steel plate is slightly higher than that of A588 Grade A steel plate, and the yield strength of A588 Grade A steel plate is slightly higher than that of A588 Grade B steel plate.
application
Due to the slightly different properties of A588 Grade A steel plate and A588 Grade B steel plate, their application fields are also different. Generally speaking, A588 Grade A steel plates are suitable for structural members in some mild stress environments, such as bridges, buildings, ships, etc.; while A588 Grade B steel plates are suitable for structural members in some higher stress environments, such as mining equipment , offshore platforms, etc.
