, this document is fundamental for ensuring quality and dimensional consistency in steel manufacturing.
All manufacturing processes have inherent variations, and JIS G 3193 establishes clear boundaries for these acceptable deviations. The tolerances for thickness are particularly complex and depend on both the nominal thickness and the width of the plate or sheet.
When a manufacturer certifies a steel plate to a structural standard like JIS G 3101 SS400, they will simultaneously reference to confirm that the physical dimensions of the plate fall within legal, safe, and commercial tolerances. 2. Key Dimensional Tolerances Specified in JIS G 3193
: Steel plates, steel sheets (including cut lengths from strips), and steel strips. Exclusions : It is explicitly not applicable to flat bars. jis g 3193 pdf
: Specifies the maximum lateral curvature (lateral warpage) allowed along the length of a plate or strip.
Standard cut-length tolerances typically range from depending on the total length of the plate. 4. Flatness and Camber
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: Descriptions of methods to verify compliance with the standard, including testing procedures and evaluation criteria.
Tolerances widen slightly, typically ranging around ±0.45 mm to ±0.70 mm. When a manufacturer certifies a steel plate to
A frequent point of confusion is the difference between JIS G 3193, 3192, and 3194. Here is a quick breakdown:
: Cut-to-length flat steel products with precise length, width, and thickness boundaries.