JIS G3101 SS 490 Steel Sheet Coil

JIS G3101 SS490 is a Japanese standard for general structural steel. It is part of the JIS G3101 steel grades and is commonly used for various structural applications. SS490 is known for its high strength and good weldability. Here are some key features of JIS G3101 SS490 steel sheet coil:

Chemical Composition

SS490 steel has a specified chemical composition, including elements such as carbon, manganese, phosphorus, sulfur, and others. The exact composition is defined in the JIS G3101 standard to ensure consistency and performance.

Mechanical Properties

SS490 steel should meet specific mechanical properties, including yield strength, tensile strength, elongation, and other characteristics. Its higher strength compared to some other grades makes it suitable for structural applications requiring additional strength.

Hot-Rolled Process

SS490 steel is typically produced through a hot-rolling process, where the steel slab is heated and then passed through rollers to achieve the desired thickness. This process imparts certain mechanical and structural properties to the steel.


JIS G3101 SS490 steel sheets and coils are used in various structural applications, such as bridges, buildings, and other general construction projects, where higher strength is required.

Surface Finish

SS490 steel sheets and coils may have different surface finishes based on customer requirements. Common finishes include pickled and oiled, as well as mill scale.

Standards and Certification

SS490 conforms to the Japanese Industrial Standard (JIS) G3101. It’s crucial to ensure compliance with the specified JIS standard when procuring SS490 steel to guarantee the material’s quality and suitability for the intended application.

Equivalent Grades

SS490 may have equivalent grades in other international standards, such as ASTM or DIN. Identifying equivalent grades helps ensure that the material meets similar specifications across different standards.

When working with JIS G3101 SS490 steel sheets and coils, it is important to follow recommended processing and handling guidelines to maintain the material’s integrity and performance. Users should also consult the relevant standards and specifications to ensure proper application and compatibility with their specific requirements.