It was first established to create a unified system for describing the physical geometry of common hot-rolled steel products. Unlike standards that focus on chemical composition (e.g., JIS G 3101) or mechanical properties (e.g., tensile strength), JIS G 3193 focuses exclusively on the that matter to fabricators:
The standard, titled "Dimensions, shape, mass and permissible variations of hot rolled steel plates, sheets and strips," is a foundational Japanese Industrial Standard that defines the physical requirements and tolerances for hot-rolled steel products. jis g 3193 pdf
JIS G 3193 is technically aligned with the international standard . However, modifications have been made for Japan's domestic industry needs. It was first established to create a unified