Jis G 3193 Pdf

Thicker flat-rolled steel used for heavy structural applications. Strip (Coil): Continuously rolled steel wound into coils. Key Technical Dimensions and Tolerances

Beyond simple dimensions, JIS G 3193 also specifies requirements for the shape of the steel, including its flatness and warpage. These are critical for applications where the steel must lie flat or be precisely aligned.

For plates with a width up to 2000 mm, the permissible variation for a nominal thickness of 6 mm is typically ±0.35 mm (for specified minimum tensile strength < 400 N/mm²). Tighter tolerances apply for higher strength or wider plates.

Note: "Class A," "Class B," and "Class C" are general tolerances in international standards, but their specific numerical values vary by region. jis g 3193 pdf

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When dealing with steel coils (strip), the calculation ignores length and uses total coil mass, which must be tracked via automated mill scales. Why Is This Standard Crucial for Quality Assurance?

For special requirements, stricter tolerances may apply, often denoted by specific designations within the ordering process. These are critical for applications where the steel

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1.2, 1.6, 2.0, 2.3, 2.5, 3.2, 4.0, 4.5, 5.0, 6.0, 8.0, 10.0, 12.0, up to 50.0+ mm

Modern iterations of the document (such as JIS G 3193:2019 and the latest ) are structurally modified ( MOD ) to align closely with ISO 7452:2013 . The main modifications preserve Japanese local commercial practices, balancing domestic steel mill capability with international structural demands. 2. Standard Dimensions and Nominal Sizes Hot-Rolled Steel Sheets and Coils Note: "Class A," "Class B," and "Class C"

JIS G 3193 is more than just a document; it is a foundational tool that ensures safety, quality, and reliability across numerous industries.

: Specific rules on where to measure thickness (e.g., at least 25 mm from the edge for mill-edged strips).

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