ABS EQ70 and ABS E70 are high-strength shipbuilding steel plates designed to meet the strict standards of the American Bureau of Shipping (ABS) for use in marine construction. These grades offer exceptional strength and durability, making them suitable for various critical components in ships and other marine vessels.

Chemical Composition

The chemical composition of ABS EQ70 and ABS E70 steel plates is carefully controlled to ensure optimal mechanical properties. These grades primarily consist of iron with the addition of carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, molybdenum, copper, titanium, vanadium, and nitrogen. The precise balance of these elements ensures high strength, good weldability, and corrosion resistance.

Mechanical Properties

ABS EQ70 and ABS E70 steel plates exhibit impressive mechanical properties. They have high yield and tensile strengths, which allow them to withstand significant loads without failure. Additionally, these grades possess good toughness and ductility, enabling them to absorb impact energy and deform without fracturing. The excellent welding characteristics of these steels also facilitate their use in fabricating complex structures.

Heat Treatment

The heat treatment process for ABS EQ70 and ABS E70 steel plates is carefully controlled to achieve the desired mechanical properties. Typically, these plates undergo normalizing or quenching and tempering to optimize their microstructure and mechanical properties. Normalizing involves heating the steel to a temperature above its upper critical point and then cooling it in still air, while quenching and tempering involves rapid cooling followed by reheating to a lower temperature for improved toughness.

Dimensional Range

ABS EQ70 and ABS E70 steel plates are available in a wide range of thicknesses, widths, and lengths to suit various shipbuilding requirements. The thickness of these plates can vary from several millimeters to hundreds of millimeters, depending on the specific application. Similarly, the width and length of the plates can be customized to fit the desired structural layout.

Impact Testing

Impact testing is a crucial aspect of evaluating the toughness of ABS EQ70 and ABS E70 steel plates. This testing involves subjecting the steel to a sudden impact load to assess its ability to absorb energy and resist cracking. The results of these tests ensure that the steel plates meet the required toughness standards for marine applications, where exposure to extreme conditions and potential impact loads is common.

Primary Application Scenarios

ABS EQ70 and ABS E70 steel plates are widely used in the shipbuilding industry, particularly for the construction of hulls and structural components. Their high strength and excellent welding characteristics make them suitable for use in areas that require both strength and durability. These steel plates are also commonly found in offshore structures, bridges, and other heavy-duty marine applications where high-performance materials are essential.

Supply Case Studies by TJC Steel

TJC Steel, a leading supplier of high-quality steel products, has extensive experience in supplying ABS EQ70 and ABS E70 steel plates to the shipbuilding industry. The company maintains strict quality control measures to ensure that the steel plates meet the specified standards and requirements. One notable supply case involves the provision of ABS EQ70 steel plates for the construction of a large container ship. TJC Steel provided the necessary plates in the required dimensions and quantities, ensuring timely delivery and satisfactory performance.

In another case, TJC Steel supplied ABS E70 steel plates for use in the hull structure of a cruise ship. The company worked closely with the shipbuilder to ensure that the plates met the specific design and performance requirements. The successful completion of these projects demonstrates TJC Steel's capability in supplying high-quality ABS EQ70 and ABS E70 steel plates for various marine applications.

In conclusion, ABS EQ70 and ABS E70 steel plates are essential materials for the shipbuilding industry. Their exceptional strength, durability, and welding characteristics make them suitable for critical components in ships and other marine vessels. TJC Steel, as a reliable supplier, provides these steel plates in various dimensions and quantities, meeting the specific needs of customers in the marine sector.