Understanding JIS G3193: The Standard for Steel Plates, Sheets, and Strips
: This is the heart of the standard. It defines how much the actual thickness, width, and length of a steel plate can deviate from the ordered size.
The nominal width of the plate (wider plates allow for slightly higher variance due to mill roll deflection).
Note: This standard explicitly excludes flat steel bars (which are instead governed by JIS G 3192). Standard Dimensions jis g3193 pdf
Width variations depend largely on whether the steel has mill edges (as-rolled) or sheared/slit edges.
Values in parentheses (e.g., 2.6, 2.9, 30.0) should be avoided if possible.
Authorized distributors offering JIS G 3193 PDFs for sale include the following: Understanding JIS G3193: The Standard for Steel Plates,
Serves as the authoritative reference if delivered materials do not meet specifications. 4. How to Find and Use JIS G3193 PDF
: JIS G3193 is a modified version of ISO 7452 (Tolerances on dimensions and shape for hot-rolled steel plates).
Unlike product standards like JIS G3101 (which defines the mechanical properties and chemical compositions of structural steel), . It does not outline tensile strengths or carbon percentages. Instead, it defines the structural boundary limits of the steel. Note: This standard explicitly excludes flat steel bars
JIS G 3193 is the Japanese Industrial Standard that specifies the dimensions, shape, mass, and permissible variations
Mechanical designers need exact flatness and thickness tolerances to calculate clearances, weld gaps, and structural load distributions.