B2B Steel Distribution
BS 1139 Scaffolding Tube
BS 1139 is a series, not a single steel-tube standard — and the part that specified tubes for scaffolding, BS 1139-1:1982, was withdrawn by BSI on 31 October 1990. So an enquiry that says only BS 1139 does not identify what is being bought. Before quoting, establish the exact part and year, the tube standard your project actually requires, and the written basis on which a historical reference is retained.
Free, no-obligation specification review
Information current as of
Send these inputs
- Project clause
- BS 1139 part & year
- Tube standard
- OD, wall & tolerance basis
- Material / grade
- Coupler / fitting requirement
- Documents
- Equivalent rule
Selection logic
When a BS 1139 callout fits a project — and when it needs resolving
Because the series contains several parts and the tube part is long withdrawn, whether this reference fits is a question about identification and scope rather than about the tube. These are the boundaries that make it workable, and the routes to take where it is not.
Fits when
- The exact BS 1139 part and year are identified, so the enquiry names a document rather than a series.
- The tube standard your project actually requires is stated separately — because the series name is not evidence of steel-tube compliance.
- The project's written acceptance of the historical reference is on record, since the tube part has been withdrawn since 1990.
- The coupler or fitting requirement is stated as its own line, because those are separate components governed by other parts of the series.
Does not fit when
- The enquiry says BS 1139 tube with no part number and no year, so nothing identifies the document being cited.
- The series name is being offered as proof that the tube complies with a steel-tube standard.
- BS 1139-1:1982 is presented as a current requirement, when BSI records it withdrawn on 31 October 1990.
- A tube and its couplers are being treated as one specification, when they are separate components with separate documents.
Compare next: related pages by decision role
Each of these answers a different version of the question. Take one when it matches the decision in front of you, and note the boundary where it stops applying.
Working tool
BS 1139 Part-and-Scope Resolver
This resolver exists to stop an ambiguous BS 1139 request becoming an unsupported steel-tube compliance claim. It reads the part and year cited, the tube standard your project requires, the fitting scope and the attributes your order must carry, then reports what is unresolved. It does not grant engineering approval.
Step 1 — Part and scope fields
An unknown field is reported as missing rather than filled in. The resolver explains why a field matters and flags an unidentified part — it does not approve a product for your project.
Step 2 — Resolver result
Nothing entered yet
Enter the part and scope fields on the left and choose resolve. Until then, here is what every BS 1139 enquiry has to resolve before the reference identifies anything:
- Mill test certificate naming the accepted document and edition, the grade, and the heat it relates to
- Record of the exact BS 1139 part and year cited, and the basis on which it is retained
- Dimensional record for outside diameter, wall and length against their tolerance bases
- Grade marking convention and the record linking grade to bundle
Copyable RFQ summary
Product / entity: BS 1139 Scaffolding Tube Project clause: to confirm on RFQ BS 1139 part & year: to confirm on RFQ Tube standard + edition: to confirm on RFQ Grade / designation: to confirm on RFQ Outside diameter + tolerance: to confirm on RFQ Wall thickness + tolerance: to confirm on RFQ Coupler / fitting scope: to confirm on RFQ Document requirement: to confirm on RFQ Equivalent rule: to confirm on RFQ Quantity + unit basis: to confirm on RFQ Destination / named place: to confirm on RFQ Incoterm + version: Incoterms 2020 — named place to be stated by buyer Required date: to be stated by buyer Acceptance notes: BS 1139 is treated as a series reference requiring an exact part and year. BSI records BS 1139-1:1982 withdrawn on 31 October 1990; no current-standard claim is made. No normative value, price, stock or lead time is asserted by this page.Transfer this summary into the RFQ
Your entries are carried into the enquiry form as the summary above — nothing you typed is discarded. Add the destination, Incoterm and window the quotation needs.
Specification
Standard scope, covered grades and dimensional tolerances
Every row below separates what the buyer supplies from what the accepted document decides. Each names the method and the condition the value depends on, or replaces the value with the exact verification step required to resolve it.
Evidence warning. No chemistry, mechanical property, dimensional tolerance, coating mass or unit weight is published for this series on this page. The withdrawn tube part's normative content sits behind the publisher's licensed record and is not reproduced here. Where a value is unavailable for publication, this page publishes the verification step instead.
Series structure and standard scope
Why the series name identifies nothing, and what the withdrawn tube part covered
| Requirement | What it establishes | Buyer input needed | RFQ field |
|---|---|---|---|
| BS 1139-1:1982 status | Withdrawn by BSI on 31 October 1990, over three decades ago. Not a current specification. | Buyer states the exact part and year cited, and the basis on which it is retained. | Part / status field |
| The series is not one document | BS 1139 comprises several parts with different scopes and different statuses; the series name identifies none of them. | Buyer names the exact part and year rather than the series. | Part reference field |
| Scope of the withdrawn tube part | It specified tubes for use in scaffolding — the tube as a component, not the other scaffold components. | Buyer confirms the order is for tube, and states couplers or fittings separately. | Product form field |
| Project clause | The clause that calls up the reference and gives it contractual weight for this order. | Buyer cites the clause reference from the project document. | Clause reference field |
| Tube standard required | The document your project actually requires, which may differ from the historical reference entirely. | Buyer states the required tube standard and edition. | Standard / edition field |
| Normative values | Dimensional, chemical and mechanical tables sit behind the publisher's licensed record and are not reproduced here. | Buyer supplies the values from the accepted project document. | Verification requirement |
Covered grades, properties and manufacturing
Why a series reference carries none of these on an order, and where each comes from instead
| Property or basis | How it is established | Buyer input needed | RFQ field |
|---|---|---|---|
| Material and grade | The strength basis for the order; stated on the order and not supplied by a series reference. | Buyer states the grade in full with its edition. | Grade field |
| Chemistry | Belongs to the governing document and grade, and is evidenced by the mill certificate for the supplied lot. | Buyer names the document and grade, then requires the certificate. | MTC / chemistry field |
| Mechanical properties | Requirements follow from the accepted document and grade — no value is inferred from a series name. | Buyer states the properties the project will check. | Mechanical requirement field |
| Manufacturing route | How the tube is made is stated by the producer and evidenced in the certificate; it is not a buyer assumption. | Buyer confirms any process requirement the project applies. | Process requirement field |
| Tolerances | Outside diameter, wall and length each carry their own tolerance basis under the accepted document. | Buyer states each dimension with its tolerance basis. | Dimension / tolerance field |
| Certification basis | The certificate has to name the accepted document, edition and grade to be checkable. | Buyer requires the certificate to name the accepted document explicitly. | Document field set |
Dimensions, tolerances and component interface
What the order has to state, including the components the tube document does not reach
| Dimension | What it decides | Buyer input needed | RFQ field |
|---|---|---|---|
| Outside diameter | Nominal OD is a label; the tolerance basis attached to it is what the coupler actually meets. | Buyer states nominal OD and its tolerance basis. | OD / tolerance field |
| Wall thickness | Wall drives mass, stiffness and load behaviour, and carries its own tolerance basis. | Buyer states wall and its tolerance basis. | Wall field |
| Length | Cut length with a stated length tolerance; stock and cut lengths are different statements. | Buyer states length and its tolerance basis. | Length field |
| Mass per unit length | Derived from OD, wall and a stated density — a calculation, not a value carried by a series reference. | Buyer confirms the density basis or accepts the stated assumption. | Mass field with stated basis |
| Coupler and fitting interface | Couplers and fittings are separate components, governed by their own documents rather than the tube part. | Buyer states the coupler or fitting family and its size range as its own line. | Coupler / fitting field |
| Straightness and end condition | Set by the accepted document and the project rather than by a series reference. | Buyer states the straightness limit and end condition required. | Condition field |
Quality & documentation
The verification matrix: request, issuer, stage, dependency
This page does not publish certificates and does not create them. Because the tube part is long withdrawn, the part identification record is part of the evidence set — the matrix below shows which document verifies which claim, who issues it, and at what stage it is required.
| Requested document / test | What it verifies | Source / issuer | When required | Risk if absent |
|---|---|---|---|---|
| Mill test certificate | The accepted document and edition, the grade, and the heat the certificate relates to | Certificate naming the accepted document, traceable to the supplied lot | Buyer / project | The certificate cannot be checked against a stated requirement. |
| Part identification record | Which BS 1139 part and year was cited, and what document governs the order instead | Project clause or correspondence recording the exact part and the accepted replacement | Buyer / project | The order proceeds on a series name that identifies no document. |
| Dimensional record | Outside diameter, wall and length, each with the tolerance basis | Measured record against the stated bases | Buyer / project | Coupler fit cannot be confirmed from a nominal size alone. |
| Mechanical property evidence | The properties the project will check against the accepted document | Test results for the stated properties, at the agreed scope | Buyer / project | Properties are assumed from the series name and never measured. |
| Finish documentation | The finish required, and where coated, the coating standard that applies | Finish record naming the standard and method where a coating applies | Buyer / project | A finish claim with no standard cannot be accepted or rejected. |
| Coupler and fitting documentation | That the couplers or fittings supplied meet their own governing document | Separate certificate or conformity record for the fittings, where supplied | Buyer / project | Fittings arrive covered only by the tube paperwork, which does not reach them. |
| Packing list and marking | The bundle, tagging and marking convention required | Packing list and marking that reconcile against the supplied lot | Commercial | The consignment cannot be reconciled against the documents on arrival. |
Evidence gates before dispatch
- The certificate names the accepted document, edition and grade — a certificate repeating only the product name is returned, because it cannot be checked against anything.
- The exact part and year cited are recorded, together with the basis on which that reference is retained or replaced.
- The dimensional record carries the measured outside diameter, wall and length beside the tolerance basis they are measured against.
- Where couplers or fittings are in scope, their document is issued separately — the tube certificate does not reach them.
- Where a coating applies, the finish record names the coating standard and the method used, as a requirement separate from the tube document.
Certification limits
No certificate, approval, classification, permit or project reference is published on this page, and none is implied by the layout. Certification depends on the accepted document the project nominates and the mill that produces the lot — both are established per order, not asserted here.
Applications
Operating condition → risk → specification implication
An application matters here only where its operating conditions change what the historical reference means for the order. Each route below shows the condition, the risk if it is left unresolved, the specification implication, and the boundary where that route stops applying.
Infrastructure
infrastructure scaffolding tube supplier
Applies where the specification is inherited from an earlier phase rather than issued against a current standard.
- Operating condition
- Long-duration civil works where the specification is inherited from an earlier phase and still carries a historical series reference.
- Failure / compatibility risk
- A series reference discovered mid-project forces a substitution after the coupler system and the paperwork are already committed.
- Specification implication
- Resolve the exact part, the accepted replacement and the interface requirement early, while all three can still change.
Oil & gas shutdown
oil and gas scaffolding tube supplier
Applies where the shutdown's document and inspection regime changes what has to be evidenced.
- Operating condition
- Short, intensive shutdown windows in a controlled industrial atmosphere, with inspection and access constraints and no schedule slack.
- Failure / compatibility risk
- Tube arriving without a certificate that names the accepted document delays access work that has no time to resolve it.
- Specification implication
- Require the certificate to name the accepted document, edition and grade, because a series name cannot be checked on site.
Shipyard
shipyard scaffolding tube supplier
Applies where the refit's inherited specification or marine exposure materially changes the tube requirement.
- Operating condition
- Marine and dockyard access work where corrosion exposure is severe and legacy specifications are often inherited across refit programmes.
- Failure / compatibility risk
- A historical series reference combined with an unfixed finish leaves both the standard and the corrosion control unresolved.
- Specification implication
- Settle the accepted document and the finish requirement together, because the exposure at the yard changes the finish decision.
GCC markets
Destination planning across the Gulf
Each card opens the related market page for scaffold tube supply into that country. What changes between them is not the tube — it is the destination, the document set, the importer context and the logistics inputs the quotation has to carry. Nothing here claims a served market, an office or a live availability.
United Arab EmiratesDomestic supply with Dubai-based coordination.Name the delivery emirate or port, the document your project accepts, and the coupler system in use. Domestic routes are coordinated from the Dubai base against the agreed tube specification.
Saudi ArabiaTechnical submittal and document scope led.Agree the accepted document, the grade and the evidence set before release, naming the port or inland destination on the enquiry.
QatarApproval sequence and importer context.Confirm the importer's document context, the named port, and the approval sequence before the quotation is finalised.
KuwaitProject-based supply with defined delivery windows.State the accepted document, grade and quantity basis, and tie the shipment to the named destination and required window.
BahrainIndustrial supply and re-export documentation.Confirm the document set, the named place and the importer's requirements before dispatch, since industrial routes depend on accurate paperwork.
OmanPort-oriented supply with onward delivery planning.State the port or inland delivery place and the Incoterm rule with its named place, and align the finish with the exposure at the destination.These cards open destination-planning routes. They do not indicate that Noor Deira Steel maintains stock, an office or a delivery commitment in any listed country — availability, origin, routing and lead time are all returned on the quotation.
Commercial inputs
Which buyer inputs change the offer
This page states no price, stock position, origin, lead time, freight rate or delivery date. What it does state is which buyer input changes the quotation, so the enquiry arrives with the fields that move the offer rather than the ones that do not.
| Buyer input | Why it changes the offer | What the buyer states | Resulting RFQ field |
|---|---|---|---|
| Exact part & year cited | Identifies which document is being referenced at all | Buyer states the part number and year | Part reference field |
| Accepted document & edition | The basis the order is quoted against | Buyer cites what the project accepts | Standard field |
| Written acceptance | Whether the historical reference or an alternative is formally agreed | Buyer provides the acceptance record | Acceptance field |
| Grade designation | Fixes the strength basis independently of any series reference | Buyer states the designation in full | Grade field |
| OD, wall & tolerance basis | Drives mass, stiffness and coupler fit | Buyer names OD, wall and tolerance bases | Dimension field |
| Length & end condition | Cut length and end treatment change handling and packing | Buyer states length, tolerance and end condition | Length field |
| Finish | Bare or coated, with the standard that applies | Buyer states the finish requirement | Finish field |
| Coupler / fitting scope | Whether fittings are supplied, and under which document | Buyer confirms the fitting scope separately | Fitting field |
| Quantity & unit basis | Pieces, lengths or tonnes — the basis is stated with the figure | Buyer confirms the unit basis | Quantity field |
| Packing & bundle arrangement | Bundle weight and lifting points change the handling operation | Buyer confirms bundle weight and marking | Packing field |
| Named port or place | Routing and vessel schedule are quotation-dependent | Buyer names the port, terminal or inland place | Destination field |
| Incoterm 2020 rule | The rule and its named place are one term, not two | Buyer chooses the rule and named place | Incoterm field |
Incoterms 2020
The rule and its named place are one term, not two. Incoterms 2020 allocates delivery cost and risk between buyer and seller — it does not decide title transfer, payment terms, duty outcome or customs clearance, all of which are agreed separately.
Packing variables
Bundle arrangement, lifting points, marking convention and load-out sequence change the handling operation and therefore the offer. They are captured as inputs so they can be quoted rather than assumed at the port.
What stays open
Price, stock position, mill origin, lead time, freight rate and delivery date are quotation-dependent in every case. None is asserted by this page, and none can be inferred from the layout of the enquiry.
Commercial support
An identified part, not a series name
Every BS 1139 enquiry is read for the exact part and year, the tube standard and the fitting scope before anything is quoted — so the first reply already answers what usually stalls a tube order.
Commercial Department
Noor Deira Steel Trading L.L.C.
The commercial desk reviews each scaffolding enquiry for part identification, document status, dimensional clarity and evidence scope before quoting — so an ambiguous series reference is caught at enquiry rather than discovered at delivery.
- One point of contact from enquiry to dispatch
- Part, scope and document review before quotation
- Destination, Incoterm and evidence captured up front
What we review first
Which exact part and year your project cites, what tube standard it requires instead, and whether the fittings are in scope — because until those are settled, nothing else about the tube can be quoted.
What we will not do
We do not treat a series name as proof of steel-tube compliance, and we do not quote a part withdrawn in 1990 as though it were current. Both are your project's decisions, and both are recorded in writing.
How the enquiry moves
Run the part-and-scope resolver, copy the summary it produces, and send it through the RFQ form. Price, availability, origin and lead time all come back on the quotation — no figure on this page is a commitment.
Alternatives & resources
Related pages, grouped by the decision they serve
These are related pages on this site, grouped by what they help you decide rather than listed as a directory. Take one only where it answers the question actually in front of you.
Verification resources
Parent hierarchy. This page sits under the scaffolding-pipe category. Return to scaffolding pipe supplier to move between the tube type, grade, size and material routes.
Expert insight
Does "BS 1139 tube" identify a current steel-tube specification?
A publisher-history check. The status below was read from the BSI record and the historic tube part separated from the other parts of the series.
Decision answer
No. BS 1139 is a series whose parts have different scopes and statuses, and the part that specified tubes for use in scaffolding — BS 1139-1:1982 — is recorded by BSI as withdrawn on 31 October 1990. The series name is therefore not evidence of steel-tube compliance.
- Primary source
- BSI Knowledge — BS 1139-1:1982, Metal scaffolding — Specification for tubes for use in scaffolding
- Method
- Verify the BSI record for BS 1139-1:1982 and distinguish the historic tube part from other BS 1139 series parts.
- Information date
- 27 September 2026
- Source scope
- BSI records BS 1139-1:1982, the steel tube specification, as withdrawn on 31 October 1990.
Limitations
- Other BS 1139 parts have different scopes and statuses, so the series cannot be read as one document.
- The exact project clause may lawfully retain a historical reference.
Buyer implication. Require the exact standard part/year and current project acceptance rather than quoting generic BS 1139 tube compliance.
Buyer advantages
Concern → evidence required → procurement outcome
Each row is a real procurement concern, the evidence or capability that resolves it, and what the buyer ends up with. No claim here rests on being better than anyone else — it rests on what can be checked.
Concern 01
A series name used where a document number is required
Evidence / capability
The page separates the BS 1139 series from its parts, and the resolver requires the exact part and year before it reports the enquiry as identified.
Procurement outcome
An enquiry that names a document a supplier can actually quote against.
Concern 02
A withdrawn tube part treated as a current requirement
Evidence / capability
The page states the 31 October 1990 withdrawal outright, and the resolver flags the historical reference as requiring recorded acceptance.
Procurement outcome
A historical callout used deliberately, with the basis on record.
Concern 03
Tube and fittings assumed to share one specification
Evidence / capability
The coupler and fitting requirement is captured as its own field, because those components are governed by different parts of the series.
Procurement outcome
A tube order and a fitting order each carrying the document that reaches it.
Concern 04
Documents that cannot be checked against anything
Evidence / capability
The certificate, part identification record, dimensional record, mechanical evidence and finish record are listed separately with their issuer and stage.
Procurement outcome
An evidence set that reconciles against the accepted document at delivery.
Process
From enquiry to delivery, stage by stage
Every stage below shows the buyer input that starts it, the role that owns it, the evidence it produces, the risk if that evidence is missing, and the next action. No named individual is referenced — the review path is organisational.
- 01
Part identification
Buyer / procurement
- Buyer input
- The exact BS 1139 part and year the project cites, and the clause that cites it.
- Evidence produced
- A named document rather than a series reference.
- Risk if missing
- The enquiry rests on a series name that identifies no document at all.
- Next action
- State the part number and year before anything else.
- 02
Scope separation
Buyer / project engineer
- Buyer input
- Whether the order covers tube only, or tube together with couplers and fittings.
- Evidence produced
- Tube and fittings scoped separately, each against its own document.
- Risk if missing
- Fittings are quoted under the tube paperwork, which does not reach them.
- Next action
- Confirm the fitting scope as its own line on the enquiry.
- 03
Accepted document
Buyer / project engineer
- Buyer input
- The tube standard the project will accept, and the written basis for retaining any historical reference.
- Evidence produced
- Recorded acceptance the order can be quoted against.
- Risk if missing
- Supply proceeds on an unaccepted reference with no basis for arbitration.
- Next action
- Obtain the written acceptance before the RFQ is issued.
- 04
Grade and dimension definition
Buyer / technical reviewer
- Buyer input
- The grade designation, and OD, wall and length with their tolerance bases.
- Evidence produced
- A strength basis and a dimensional requirement stated independently.
- Risk if missing
- Grade and dimensions assumed from the series name and never stated.
- Next action
- State the grade and each dimension with its tolerance basis.
- 05
Commercial quotation
Commercial department
- Buyer input
- Incoterm 2020 rule with its named place, quantity basis, packing and destination.
- Evidence produced
- A quotation request on a stated basis — price on request.
- Risk if missing
- A cost difference read as a commercial difference when the offers carry different obligations.
- Next action
- Hand the qualified RFQ to the Scaffolding Pipes enquiry form.
- 06
Packing and dispatch
Supplier / carrier
- Buyer input
- Bundle arrangement, lifting points, marking convention and load-out sequence.
- Evidence produced
- Packing and handling captured so they can be quoted rather than assumed.
- Risk if missing
- Tube bundled without a handling basis, then disputed on site.
- Next action
- Confirm packing and marking against the destination requirement.
- 07
Delivery and document handoff
Buyer / importer
- Buyer input
- Confirmed named place, delivery window and the destination papers.
- Evidence produced
- A document handoff at the buyer's end, reconciled against the accepted document.
- Risk if missing
- Clearance obligation assumed to sit with the supplier when it does not.
- Next action
- Confirm the named place and the document set with the importer before dispatch.
This workflow describes the information path, not a service-level commitment. Timings, availability and delivery are quotation-dependent and are not asserted here.
Buyer FAQ
BS 1139 scaffolding tube, answered directly
These assume the requirement is already understood. They resolve part identification, scope, acceptance, equivalence, documentation and how to compare offers — the questions a procurement team asks once the basic decision is made.
Is BS 1139-1 still a current steel tube specification?
No. BSI records BS 1139-1:1982, the part that specified tubes for use in scaffolding, as withdrawn on 31 October 1990. It has been withdrawn for over three decades, so it cannot be presented as a current requirement. A project clause may still retain the historical reference contractually, but that is a project decision and has to be stated as one.
Why is the part number so important on a BS 1139 enquiry?
Because BS 1139 is a series, not a single document, and its parts have different scopes and different statuses. The part that covered steel tubes is BS 1139-1, and it is the one that is withdrawn. Other parts of the series address different components entirely. An enquiry that says only BS 1139 does not identify what is being bought, and two suppliers can read it two different ways.
Can I specify BS 1139-1 on a project today?
A project can retain a historical reference, and an existing contract may continue to cite it — withdrawal is not the same as a legal prohibition. What you cannot do is have a supplier present it as a current standard, or treat the series name as proof of steel-tube compliance. State the exact part and year, and record the project's acceptance of that reference.
What does the withdrawn part actually cover?
BS 1139-1:1982 specified tubes for use in scaffolding — the tube as a component. It did not cover the other scaffolding components that later parts of the series address. Because it is withdrawn and its normative content sits behind the publisher's licensed record, this page does not reproduce its dimensional, chemical or mechanical tables.
How do we move a historical BS 1139 tube requirement forward?
Through the project's approved-equivalent route. Identify the exact part and year being replaced, confirm which current document the project will accept instead, check that the alternative establishes the properties and dimensions your project relies on, and obtain the project's written acceptance before restating the order against it. An equivalent is the project's decision — this page does not declare one.
What documents should a BS 1139 tube order carry?
A mill test certificate naming the accepted standard and edition, the grade, and traceable to the supplied lot; the written record of the project's acceptance of the historical reference; a dimensional record for outside diameter, wall and length against their tolerance bases; and the finish documentation where a coating applies. A certificate that repeats only the product name cannot be checked against anything.
Still open?
If your question is not answered above, run the callout through the part resolver — it returns the part, the scope and the documents your enquiry still needs, and carries them into the RFQ.
Qualified RFQ
Send the part and the scope, not the series name
The summary below carries every field this decision rests on. Copy it as it stands and add the destination, Incoterm and window the quotation needs. Nothing here asserts a price, a stock position or a lead time.
What this page does not state
No chemistry, mechanical property, dimensional tolerance, coating mass or unit weight is published for this series. The withdrawn tube part's normative content sits behind the publisher's licensed record. Each value belongs to the document your project accepts, evidenced by the certificate for the supplied lot.