Detailed product specifications
Specification details
| Parameter / condition | Value / requirement |
|---|---|
| Product standard | JIS G 3101 |
| Product form | Steel plate |
| Tensile strength reference | 400–510 MPa |
| Minimum yield strength reference | 245 MPa (t ≤ 16 mm), 235 MPa (16 < t ≤ 40 mm), 215 MPa (40 < t ≤ 100 mm), 205 MPa (t > 100 mm) |
The stated values use the rule edition shown above. Select the contract standard, thickness, delivery condition and test specimen together; the supplied plate certificate records the actual heat results.
Material selection
When selecting JIS G 3101 SS400 Structural Steel Plate for your project, you must verify that the material matches the specific requirements of your drawing. Base plates, brackets, and fabricated supports are common examples of applications where this grade is utilized, but usage remains entirely subject to the engineering drawing. Be aware that the minimum yield strength varies with thickness. Furthermore, while it may share a similar tensile range with other specifications, a similar tensile range does not establish equivalence with A36. You must evaluate the mechanical properties and standard requirements independently to ensure the material fulfills your structural design needs without assuming interchangeability.
What to include in an enquiry
To review your quotation and ensure accurate fulfillment, you must request and confirm the ordered edition, cut dimensions, quantity, and inspection document. Providing these specific parameters allows for precise material identification and verification against your project records. Ensure all ordering details are clearly communicated to prevent discrepancies between the supplied material and your structural requirements.
Frequently asked questions
Can I substitute A36 for JIS G 3101 SS400 Structural Steel Plate based on tensile strength, and is engineering approval required?
A similar tensile range does not establish equivalence between A36 and JIS G 3101 SS400 Structural Steel Plate. Therefore, substitution cannot be made automatically. Engineering approval is strictly required for any material substitution to ensure structural integrity and compliance with design specifications.
Technical sources and specification notes
- BEBON SS400 product sheet — SS400 mechanical properties by thickness
Use the purchase specification and the inspection document for the actual plate. - Japanese Standards Association, JIS G 3101:2024 — Scope of JIS G 3101
Use the purchase specification and the inspection document for the actual plate. - 中外钢铁牌号速查手册（第4版） — PDF p. 55 · SS400 designation background
Use the purchase specification and the inspection document for the actual plate.