Jis G 3193 Pdf Updated ★ Limited
Understanding the JIS G 3193 Standard for Hot-Rolled Steel The JIS G 3193 standard, titled "Dimensions, shape, mass and permissible variations of hot-rolled steel plates, sheets and strips," is a cornerstone of the Japanese Industrial Standards (JIS) used extensively in manufacturing and construction. Often searched for as a JIS G 3193 PDF, this document is critical for ensuring that hot-rolled steel products meet strict dimensional and quality requirements. Scope and Application
This standard specifies the requirements for the appearance, shape, and dimensions of hot-rolled steel plates, sheets, and strips.
Applicability: It applies to various product standards for hot-rolled steel, including those for structural uses (JIS G 3101, JIS G 3106) and automobile structural parts (JIS G 3113). Exclusions: It is specifically not applicable to flat bars.
International Correspondence: The current version (JIS G 3193:2019) is modified based on the international standard ISO 7452:2013 to reflect Japanese transactional practices. Key Specifications in JIS G 3193
The document is primarily composed of tables that define standard dimensions and the "permissible variations" (tolerances) for those dimensions. 1. Thickness Tolerances
Thickness is one of the most critical factors and is measured at specific locations depending on the edge type (e.g., at least 25mm from the edge for mill-edged strips). Width (mm) Thickness (mm) Tolerance (mm) Under 1,600 Under 1.25 Under 1,600 1.60 to <2.00 1,600 to <2,000 2.50 to <3.15 2,000 to 2,500 3.15 to <4.00 (Data sourced from JIS G 3193 Table 4). 2. Shape and Flatness jis g 3193 pdf
Beyond simple dimensions, the standard regulates the physical shape of the steel:
Flatness: Defines the maximum allowed deviation from a perfectly flat surface, typically measured on a flat surface plate.
Camber: Specifies the maximum lateral curvature (lateral warpage) allowed along the length of a plate or strip.
Out-of-Square: For cut lengths from strips, the out-of-squareness must not exceed 1.0%. 3. Mass Calculation
The mass of steel plates and sheets is generally calculated using the theoretical mass in kilograms, while bars or coils may be weighed for actual mass. Where to Find JIS G 3193 PDF Understanding the JIS G 3193 Standard for Hot-Rolled
Official and certified copies of the standard can be obtained through authorized standards organizations:
JIS G 3193 - 2019 - (Hot Rolled-Plate, Sheet, Strip ... - Scribd
JIS G 3193 vs. JIS G 3192 vs. JIS G 3194
A frequent point of confusion is the difference between JIS G 3193, 3192, and 3194. Here is a quick breakdown:
| Standard | Title | Focus | |----------|----------------|--------------------------------| | JIS G 3193 | Hot-rolled plates & sheets | Flat products (plates, sheets, coils) | | JIS G 3192 | Hot-rolled steel sections | Shapes: angles, channels, I-beams | | JIS G 3194 | Hot-rolled steel bars | Round, square, hexagonal bars |
If you are dealing with flat steel (plate or sheet), JIS G 3193 is the correct dimensional standard. Outdated (e
⚠️ Warning on Free PDFs
You will find many websites offering a free jis g 3193 pdf download. Most of these are:
- Outdated (e.g., JIS G 3193:1990 instead of 2019 revision).
- Poorly scanned and illegible.
- Non-compliant for legal or audit purposes.
Using an outdated or fake PDF in a contract or QC inspection can lead to rejected shipments or liability. Always buy from JSA or an authorized reseller.
2. Shape Requirements
The standard outlines limits for:
- Flatness: Ensuring the plate does not have excessive warping or buckling.
- Squareness: Ensuring cut edges are at right angles.
- Camber: The maximum allowable deviation from a straight edge.
Where to Download the Official JIS G 3193 PDF
It is important to distinguish between "unofficial" mirrors and the authoritative source. While you may find scanned copies on engineering forums, these are often:
- Outdated: Missing the latest amendments.
- Unreliable: Potential PDFs may contain malware or be unreadable.
- Illegal: Copyrighted standards should be purchased through official channels.
Why is the JIS G 3193 PDF Essential for Engineers?
You might wonder: "Why can't I just use any steel dimension chart?" The answer lies in liability, compliance, and interoperability.
C. Radius of Fillets (r1, r2, r3)
Fillet radii are not just aesthetic; they impact stress concentration. The standard defines:
- r1 (root radius between web and flange)
- r2 (toe radius at flange tip)
- r3 (radius at web center, typically for light sections)
