The design names a grade and product within the applicable G 3101 scope.
Before you enquire
Send the grade, form and contractual edition.
Structural steel · Standard
JIS G 3101 structural steel with grade and product scope resolved
Start a JIS G 3101 enquiry by naming the required grade, product form and contractual edition. Add the section or bar dimensions and their applicable tolerance standard; a material-standard reference on its own cannot identify the member to be purchased.
This standard route covers the relevant general-structural material family. SS400 is a grade decision within that family, not a reason to redefine every JIS G 3101 order as SS400.
Missing decisions
Complete the material standard with the missing decisions
Three states decide how a brief is handled. Each one names the decision, why it matters on this standard and the field to settle before an enquiry is worth sending.
The order references only G3101 or an older drawing abbreviation.
Before you enquire
Resolve the intended grade and edition with the project authority.
Special welding, toughness or service needs are assumed from the standard label.
Before you enquire
Identify the exact acceptance requirements before ordering.
| Decision | Why it matters here | Before you enquire |
|---|---|---|
| Fit | The design names a grade and product within the applicable G 3101 scope. | Send the grade, form and contractual edition. |
| Verify first | The order references only G3101 or an older drawing abbreviation. | Resolve the intended grade and edition with the project authority. |
| Separate assessment | Special welding, toughness or service needs are assumed from the standard label. | Identify the exact acceptance requirements before ordering. |
Explore the full structural-steel range
SS400 grade route
Use this route when SS400 is the named material, while retaining the full standard and product basis.
Compare the EN route carefully
Use a documented cross-standard comparison only where the designer permits alternatives.
Expert insight
Expert Insight: Does the published edition automatically govern the order?
The Japanese Standards Association lists JIS G 3101:2024. This provides an edition reference to check, but the buyer still needs to reconcile it with the project’s contractual standard list.
Buyer implication: Resolve edition differences before approving material submittals or accepting an alternative offer.
Method: Check the standards publisher’s exact designation and compare it with the contract reference. Applicability: Edition identification for JIS general-structural steel procurement. Limit: The public listing is not the full standard, a grade-equivalence assessment or heat-specific evidence.
Material schedule
Build a JIS G 3101 material schedule
Capture the standard, grade and dimensional basis separately so the quotation can answer the actual product requirement.
Prepared summary
Complete the specification to prepare a review summary.
Prepared locally in your browser — no personal data is collected here and nothing is sent. The destination RFQ form owns contact collection, and a submission is complete only when that form returns a genuine acknowledgement.
Confirm the selected grade is applicable to the product form and thickness; review special service and cross-standard alternatives independently.
Material vs shape
Separate G 3101 material requirements from the shape order
Record the material basis and geometric basis in different fields. This prevents an ambiguous standard reference from surviving into the purchase order.
| Specification decision | Applicability and limit | Evidence to request | RFQ action |
|---|---|---|---|
| Contract edition | A publication listing does not amend a project’s agreed edition. | Contract document list and standards authority confirmation. | Identify the exact contractual edition. |
| Grade and product scope | The selected grade must apply to the ordered form and dimensions. | Full governing standard and offered mill report. | Name grade, form and relevant thicknesses. |
| Geometry and tolerances | Material compliance alone cannot establish the profile dimensions. | Applicable dimensional standard and producer section drawing. | Specify designation, lengths and critical tolerance limits. |
| Special service conditions | Additional requirements need an explicit design decision. | Welding, toughness or other project acceptance schedule. | List supplementary requirements and deviations for review. |
Documents and acceptance
Documents that support JIS grade, edition and item reconciliation
Require the document package to show the ordered grade and identify the shipped items. Ask for a translated technical explanation where an abbreviation prevents the receiving team from checking compliance.
| Control | What to examine | When and limits | Next action |
|---|---|---|---|
| Contract edition | Contract document list and standards authority confirmation. | Before material acceptance; confirm feasibility and cost at quotation. | Identify the exact contractual edition. |
| Grade and product scope | Full governing standard and offered mill report. | Name grade, form and relevant thicknesses. | |
| Geometry and tolerances | Applicable dimensional standard and producer section drawing. | Specify designation, lengths and critical tolerance limits. | |
| Heat and item identity | Mill test certificate linked to heat markings and packing list. | Before release and again on receipt; a sample certificate is not evidence for the shipped heat. | Request traceability through cutting, bundling and delivery. |
Applications
Carry the JIS schedule into the project approval path
The project route supplies the surrounding service, interface and inspection questions.
Industrial-building steel
Reconcile profile systems, connection details and welding requirements before purchase.
Transmission-tower components
Confirm member geometry, hole tolerances and protection requirements against the approved tower design.
Construction submittals
Resolve JIS material acceptance and any equivalent-grade proposal with the project authority.
GCC markets
Plan the GCC destination around the JIS material schedule
Agree the language and item references needed for the receiving project to review the documents. Country flags identify the destination; quotation must confirm the supply route, origin and availability for this order.
Every market card below — Keep JIS grade, edition and dimensional basis legible in the destination documents.
Identify the emirate, fabricator or site address and unloading restrictions; distinguish a domestic handover from an import leg.
Name the consignee, importer and final site; ask who confirms product classification and border documentation before dispatch.
State the nominated receiving point and project document approver; align certificate review with the required arrival window.
Specify the actual port, border point or inland site requested; separate the entry leg from onward transport and unloading.
Identify the contractor or fabrication yard receiving the sections; agree import-document responsibility and the named delivery place.
Confirm whether the order is for local consumption or onward shipment; name the consignee and agree who handles each transport leg.
Commercial
Request a technically traceable JIS offer
Ask the quotation to identify the offered mill, grade, product form, dimensional standard and edition. Keep alternative standards or grades outside the base offer until their acceptance has been resolved.
Ask for the offered mill and origin, section schedule, quantity basis, processing scope, packing, commercial validity and exclusions. State the Incoterm with its named place and edition, who unloads, and the requested delivery window.
Price, availability, production allocation, transport feasibility and dates require written confirmation.
Coordinate an export enquiry — align the JIS material description, section designation and translated item references across shipment records.
Require the offer to identify
- The offered mill and origin
- The grade and its product scope
- The dimensional standard and edition
- The contractual edition applied
- Any translation or alternative proposed
- Packing, validity and exclusions
Shape check
Resolve the full shape before finalising quantities
Use these resources to clarify the physical member, while the applicable JIS table and approved drawing control acceptance.
Structural size reference
Describe the complete profile rather than a material standard alone.
Structural mass reference
Check the quantity basis without turning an estimate into a shipment-mass guarantee.
Channel product route
Clarify the channel series and dimensional basis when the schedule contains channels.
Comparison evidence
Evidence that makes a JIS order reviewable
Each control names what to examine and the RFQ field it locks, so competing offers can be read against the same acceptance requirement.
Contract edition
Contract document list and standards authority confirmation.
Identify the exact contractual edition. This makes competing offers easier to compare against the same acceptance requirement.
Grade and product scope
Full governing standard and offered mill report.
Name grade, form and relevant thicknesses. This makes competing offers easier to compare against the same acceptance requirement.
Geometry and tolerances
Applicable dimensional standard and producer section drawing.
Specify designation, lengths and critical tolerance limits. This makes competing offers easier to compare against the same acceptance requirement.
Release
Resolve the JIS reference before the item is released
Each stage names its owner, the required input, the evidence it produces and the risk that stays open until it closes.
| Stage and owner | Required input | Evidence or output | Risk and next action |
|---|---|---|---|
| Engineering release — Buyer’s design authority | Freeze the G 3101 edition, grade and product schedule. | Approved specification and drawing revision | Unapproved substitution can change the design basis. Close the item before proceeding. |
| Offer review — Buyer and quotation team | Review offered material and dimensional standards plus any translations or alternatives. | Written technical exceptions and commercial scope | An unlisted exception can survive into the purchase order. Close the item before proceeding. |
| Material release — Mill, inspector and buyer as agreed | Check heat reports and dimensional evidence against the approved item list. | Accepted documents linked to the order items | Missing heat identity can make an otherwise correct section unacceptable. Close the item before proceeding. |
| Receipt and reconciliation — Receiving team | Reconcile markings and received geometry with the same approved references. | Delivery record, item count and discrepancy record | Record any mismatch before the material is incorporated into work. Close the item before proceeding. |
FAQ
JIS G 3101 procurement questions
Short answers to the questions that come up when a material standard is being read as if it identified the member.
Does G 3101 always mean SS400?
No. State the selected grade explicitly and confirm its product scope in the governing edition.
Can the supplier choose the edition?
The order should identify the contractual edition. Resolve differences with the project authority before acceptance.
Does G 3101 define all section tolerances?
Specify the applicable dimensional and tolerance basis for the product separately.
Are EN and JIS grades interchangeable?
Not from a comparison label alone. Compare applicable requirements and obtain written approval for the specific item.
What if a certificate abbreviation is unclear?
Request the exact grade, edition, product and heat references with an explanation suitable for the receiving reviewer.
What belongs in the base RFQ?
Grade, standard and edition, product form, geometry, quantities, service requirements, documents and named delivery point.
Next step
Request JIS material with the grade and geometry resolved
Send the complete material and section schedule. Identify edition conflicts and alternative proposals before the quotation is approved.
Prepare and copy the summary above, then open the structural-steel RFQ and paste it into Product Requirement. Add your name, company and reply email on that form. Supporting drawings can be shared through the destination’s verified contact process.
This page prepares your enquiry locally. Opening the RFQ does not submit it. A submission is complete only when the receiving form returns a genuine acknowledgement.
- Commercial department
- sales@noordeirasteel.ae
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Resolve before the quotation
- Name the grade and confirm its product scope.
- State the contractual G 3101 edition.
- Add the dimensional standard and tolerance basis.
- Keep any alternative grade outside the base offer.
Price on request. Feasibility, availability and dates are confirmed in writing after technical review — never asserted on this page.