Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of jis g 3466 hollow structural section in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable jis g 3466 hollow structural section from our factory.
Tianjin Brisk Steel is one of the JIS G 3466 HOLLOW STRUCTURAL SECTION in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.
Product Overview
| Item | Specification |
|---|---|
| Standard | JIS G 3466 |
| Grades | STKR400, STKR490 |
| Shape | Square and rectangular hollow section |
| Size range | 20mm x 20mm - 400mm x 400mm (square), similar range for rectangular |
| Wall thickness | 1.6mm - 22mm |
| Manufacturing process | Cold-formed, electric resistance welded (ERW) |
| Length | Standard 6m or per project requirement |
| Tensile strength | STKR400: 400 N/mm2 min; STKR490: 490 N/mm2 min |
| Testing | Tensile test, flattening test, mill certificate per JIS format |
Send us your size, grade, and quantity, and we'll confirm mill certificate format, lead time, and pricing.
What a JIS-Compliant Order Actually Requires
Meeting JIS G 3466 on paper is not the same as satisfying a project's JIS requirement if the certification package doesn't match what the client expects:
- Mill test certificates in JIS format - test methods, sampling frequency, and report layout following JIS conventions, since a certificate formatted for ASTM or EN reporting doesn't automatically satisfy a JIS-specific document review
- Dimensional tolerances per JIS G 3466's own tables - not assumed identical to EN 10219 or ASTM A500 tolerance bands, which use different reference systems
- Chemistry limits specific to STKR400/STKR490 - lower carbon ceiling than some ASTM equivalents at comparable strength, relevant if the section will be welded to other Japanese-standard structural steel on site
Where This Gets Used
- Japanese-affiliated manufacturing plant construction (automotive, electronics, precision machinery)
- Building frames and structural columns on projects specified to JIS standards
- Equipment support structures and mezzanine framing in JIS-spec facilities
- General structural fabrication for Japan-linked construction contractors operating overseas
How This Solved a Real Order
A structural steel package for an overseas automotive supplier plant was initially quoted using EN 10219 S355 sections, based on a rough strength match to the JIS grade referenced in the client's design basis document. During document review, the client's Japanese engineering team rejected the substitution outright, since the project specification named JIS G 3466 explicitly and required JIS-format mill certificates for the plant's internal QA records, independent of whether the mechanical properties were comparable. The order was re-quoted directly to STKR490 with JIS-format certification, and the revised package passed document review without further comment.
FAQ
Q: Is STKR490 stronger than EN 10219 S355?
A: Not directly comparable by the numbers in the names. STKR490's "490" is minimum tensile strength; S355's "355" is minimum yield strength. Comparing design capacity requires checking actual yield strength and section properties, not the grade number alone.
Q: Can I substitute ASTM A500 for JIS G 3466 if the properties are similar?
A: Only if the project specification allows an equivalent standard rather than naming JIS G 3466 specifically. Many Japanese-client projects require the standard itself, along with JIS-format certification, regardless of comparable mechanical properties.
Q: What's the difference between STKR400 and STKR490?
A: STKR490 has a higher minimum tensile strength (490 vs 400 N/mm2) and correspondingly tighter chemistry control. STKR490 is used where the structural design calls for higher capacity; STKR400 is the more general-purpose grade.
Q: Do you provide mill certificates in JIS format?
A: Yes - we issue mill test certificates following JIS G 3466's specified test methods and reporting format, which is a separate requirement from simply meeting the chemistry and mechanical property limits.
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