: JIS G 3193 does not apply to flat bars or steel sections, which are covered by separate standards like JIS G 3194 and JIS G 3192.
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Note: As of late 2025, the standard was updated, with the current iteration frequently referred to as . Scope of the Standard
The standard specifies requirements for the appearance, dimensions, and tolerances of the following hot-rolled products: 日本規格協会 JSA GROUP Webdesk Steel plates Steel sheets (including cut lengths from steel strips) Steel strips Note: This standard does not apply to flat bars. 日本規格協会 JSA GROUP Webdesk Key Specifications Covered The standard provides detailed rules for: JIS G 3193-2019 PDF (Dung Sai Thep Tam) - Scribd : JIS G 3193 does not apply to
The core value of the lies in its definitive reference tables. The standard ensures that steel manufactured by major global mills meets predictable dimensional boundaries. 1. Thickness Tolerances
Strict limits on edge camber, out-of-squareness, and flatness to ensure the material can be processed effectively in your machinery. Mass Calculation: If you share with third parties, their policies apply
In shipbuilding, bridge construction, and high-rise framework, minor structural thinning can compromise structural integrity. JIS G 3193 keeps these deviations within safe structural limits.
The brought several critical updates:
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: