The Ultimate Guide to the JIS G 3193 Standard: Dimensions, Tolerances, and Specifications for Steel Plates

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Width tolerances depend on how the edges of the steel plate are finished:

JIS G 3193 is an essential standard for anyone involved in specifying, manufacturing, or inspecting hot-rolled steel products. It defines the dimensional and shape tolerances that ensure steel plates, sheets, and strips meet quality requirements for diverse applications.

The mass of steel plates and sheets is generally calculated using the in kilograms, while bars or coils may be weighed for actual mass. Where to Find JIS G 3193 PDF

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: For steel strips and cut lengths, a maximum thickness of 12.7 mm is typically applied.

For a plate under 1,600 mm wide and 4.00 mm to 5.00 mm thick, the allowed tolerance is typically around ±0.24plus or minus 0.24 ±0.35plus or minus 0.35 mm depending on the exact material sub-classification.

For the same product, assuming the mother plate has a thickness of 80 mm and a width of 2438 mm (which falls in the 1600 mm to less than 2500 mm range), the permitted thickness tolerance is ±1.10 mm .