Purpose and scope: JIS G3193 standardizes shapes (I, H, C, L, etc.), dimensions, sectional properties (area, moment of inertia, section modulus), and permissible deviations for hot-rolled structural steel sections. This ensures interchangeability, predictable structural performance, and compatibility across manufacturers.
For example, a standard plate with a width under 1,600 mm will have a much tighter thickness tolerance (often within hundredths or tenths of a millimeter) than a massive plate exceeding 2,500 mm in width. 2. Width Tolerances
In the world of structural engineering and steel fabrication, precision is paramount. Whether you are constructing a high-rise building in Tokyo or a bridge in Southeast Asia, the dimensional accuracy of your raw materials dictates the success of the project. For professionals dealing with steel sections, one document stands as the non-negotiable standard: . jis g3193 pdf
While related structural material specifications like JIS G3101 (SS400) govern chemical compositions and mechanical properties, they rely completely on JIS G3193 to dictate physical dimensions and mill limits. Key Information Overviews
: JIS G3193 is a modified version of ISO 7452 (Tolerances on dimensions and shape for hot-rolled steel plates). Purpose and scope: JIS G3193 standardizes shapes (I,
At its core, JIS G3193 defines the (tolerances) for hot rolled steel products. It ensures that the steel you order meets specific physical requirements, which is critical for precision engineering and structural integrity.
: Manufacturers use it to verify that incoming raw materials meet the dimensional requirements for their specific engineering projects. For professionals dealing with steel sections, one document
For strips and coils, the PDF details how much the side edge can curve laterally over a given length (e.g., 5 mm per 10 meters).
Thickness must be measured at specific locations: at least 25 mm inward from the edge for raw mill edges, and at least 15 mm inward for trimmed or cut edges. Below is an overview of standard thickness tolerances for common widths: Go to product viewer dialog for this item. Download JIS G 3193 In PDF - Standards Global