Specify A513 Type 5 DOM
Use the narrower route once DOM is selected and the remaining grade and condition fields are known.
ASTM A513
ASTM A513 Steel Tube Supplier
Use A513 to frame a welded mechanical-tube order, then select the type, steel grade, thermal condition and shape. Type 5 DOM is one branch, not the whole family. Start with the component drawing and decide which finishing route and dimensional controls are actually necessary.
This page covers the A513 family, including as-welded, sink-drawn, DOM and special smooth-ID types. It does not represent a seamless specification or a universal structural or pressure-system approval.
Type selection
Choose the A513 type around the component
The type is the first field, not the only one. It decides which requirements inside the family apply — and a type chosen without the drawing is the usual reason an offer has to be reworked.
| Decision | Why it matters here | Before you enquire |
|---|---|---|
| As-welded route | Consider when the drawing permits the supplied surface and dimensions. | Specify type and any weld or surface restrictions. |
| Drawn route | Use where the approved dimensional or internal-surface requirement calls for it. | Distinguish sink-drawn, DOM and special smooth-ID requirements. |
| Seamless requirement | A513 is a welded mechanical family. | Use a seamless product specification if the drawing requires one. |
Explore the full steel-tubes range to compare the welded, seamless, mechanical and precision routes on one page before the drawing is fixed.
Compare A519 seamless mechanical tube
Review a different manufacturing family only under drawing and engineering control.
Navigate ASTM grades and product standards
Distinguish a product specification, manufacturing type and material grade across the package.
Enquiry builder
ASTM A513 Steel Tube Specification — enquiry builder
Capture the decisions below, prepare a review summary and copy it to the tube RFQ. The selected branch records the next review action, not a conformity certificate. Confirm type, grade, shape, condition and dimensional provisions against the ordered edition.
Acceptance basis
Put the acceptance basis on the order
This page covers the A513 family, including as-welded, sink-drawn, DOM and special smooth-ID types. It does not represent a seamless specification or a universal structural or pressure-system approval.
| Specification decision | Applicability and limit | Evidence to request | RFQ action |
|---|---|---|---|
| As-welded types | Types 1a, 1b and 2 distinguish starting material and surface route. | Mill type declaration and drawing acceptance. | Name the exact type and delivered surface. |
| Drawn and smooth-ID types | Types 3 and 4 are sink-drawn; Type 5 is DOM; Type 6 addresses a special smooth ID. | Mill confirmation of the ordered type and relevant limits. | Do not use DOM as a synonym for every A513 tube. |
| Grade and thermal condition | Type alone leaves material and condition decisions open. | Heat certificate and agreed treatment/property evidence. | State the grade and condition independently. |
| Shape and dimensions | Round and shaped tube need different inspection schedules. | Drawing with controlling sizes, corner/interface and straightness requirements. | Attach the shape-specific acceptance schedule. |
No chemistry limit, mechanical-property value, tolerance figure or pressure rating is published on this page. Every figure used in a live enquiry must come from the ASTM A513/A513M edition the contract invokes or from your own component drawing.
Documentation
Documents that support an ASTM A513 steel tube order
Use the order checklist to prevent a family-standard quote from hiding a different type or condition. Grade, type, thermal condition, shape and dimensions should all reconcile to the component drawing and heat documentation.
| Control | What to examine | When and limits | Next action |
|---|---|---|---|
| As-welded types | Mill type declaration and drawing acceptance. | Before material acceptance; confirm feasibility and cost at quotation. | Name the exact type and delivered surface. |
| Drawn and smooth-ID types | Mill confirmation of the ordered type and relevant limits. | Before material acceptance; confirm feasibility and cost at quotation. | Do not use DOM as a synonym for every A513 tube. |
| Grade and thermal condition | Heat certificate and agreed treatment/property evidence. | Before material acceptance; confirm feasibility and cost at quotation. | State the grade and condition independently. |
| 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. |
Duty and drawing
Follow the operating duty to the right specification
The drawing and service envelope govern acceptance. These paths address different purchasing decisions; an application label does not approve a material.
Manufacturing components
Choose the least ambiguous type and condition for repeat production and incoming inspection.
Automotive part supply
Let the approved component drawing and qualification plan select the type.
Machinery fabrication
Review weld permission, machining allowance and final fit before ordering.
GCC markets
Plan the GCC destination around the A513 supply
Use the destination to close the quotation scope, then confirm feasibility and commercial terms in writing. Country flags identify the destination; quotation must confirm the supply route, origin and availability for this order.
Record A513 type, grade and condition on destination purchase and bundle schedules. Identify the emirate, fabricator or site address and unloading restrictions; distinguish a domestic handover from an import leg.
Record A513 type, grade and condition on destination purchase and bundle schedules. Name the consignee, importer and final site; ask who confirms product classification and border documentation before dispatch.
Record A513 type, grade and condition on destination purchase and bundle schedules. State the nominated receiving point and project document approver; align certificate review with the required arrival window.
Record A513 type, grade and condition on destination purchase and bundle schedules. Specify the actual port, border point or inland site requested; separate the entry leg from onward transport and unloading.
Record A513 type, grade and condition on destination purchase and bundle schedules. Identify the contractor or fabrication yard receiving the tubes; agree import-document responsibility and the named delivery place.
Record A513 type, grade and condition on destination purchase and bundle schedules. Confirm whether the order is for local consumption or onward shipment; name the consignee and agree who handles each transport leg.
Commercial
Compare offers on the same delivered scope
Compare equivalent types and conditions. Ask for explicit exceptions on shape, length, surface, treatment and inspection; a general A513 statement is too broad to establish a like-for-like price comparison.
Ask for the offered mill and origin, tube 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 — this page does not publish a price, and every figure remains price on request.
Coordinate an export enquiry — align tube identification, bundle protection and transport documents with the named delivery place before dispatch.
Adjacent decisions
Resolve the remaining specification decisions
These controls finish the type-selection decision without turning every requirement into DOM.
Define type-specific dimensional acceptance
Use the ordered type, shape and edition before applying any tolerance.
Select the delivered surface
Separate mill surface, drawn finish and downstream finishing requirements.
Take the Type 5 DOM branch
Narrow the enquiry to the DOM route once the drawing settles on it.
Check the A519 mechanical family
A different manufacturing basis, reached only under drawing and engineering control.
Check the A269 fluid-service family
Where the duty is fluid service rather than mechanical, a different specification applies.
Expert insight
Expert Insight: Is A513 a DOM-only standard?
The public classification lists multiple manufacturing types, with DOM assigned to Type 5.
Buyer implication: identify the required type before comparing an A513 offer.
Method: classification review of the publisher’s public catalogue entry. Applicability: A513 manufacturing-type selection. Limit: detailed type-specific limits and acceptance clauses require the ordered standard.
ASTM A513/A513M-25 type classification · Information reviewed 2026-10-16.
Acceptance controls
Make acceptance easier to demonstrate
Three controls carry most of the acceptance risk on an A513 order. Each one is settled before the purchase order, not at the bench.
As-welded types
Mill type declaration and drawing acceptance.
Name the exact type and delivered surface.
Drawn and smooth-ID types
Mill confirmation of the ordered type and relevant limits.
Do not use DOM as a synonym for every A513 tube.
Grade and thermal condition
Heat certificate and agreed treatment/property evidence.
State the grade and condition independently.
Responsibilities
Close each decision before releasing the order
Each stage has an owner and an output. When one is skipped, the gap does not show up until the material is already on site.
| Stage and owner | Required input | Evidence or output | Risk and next action |
|---|---|---|---|
| Engineering release — Buyer’s design authority | Release component shape, grade, type and condition. | Approved specification and drawing revision | Unapproved substitution can change the design basis. Close the item before proceeding. |
| Offer review — Buyer and quotation team | Compare the offered type and shape-specific exceptions. | 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 | Accept the required heat, condition and dimensional records. | Accepted documents linked to the order items | Missing heat identity can make an otherwise correct tube unacceptable. Close the item before proceeding. |
| Receipt and reconciliation — Receiving team | Check each bundle against the correct component schedule. | Delivery record, item count and discrepancy record | Record any mismatch before the material is incorporated into work. Close the item before proceeding. |
Questions
Questions before you place the tube order
The points that decide whether an A513 offer is actually comparable.
Does A513 always mean Type 5?
No. Type 5 is the DOM branch within a broader welded mechanical-tube family.
Is type enough to specify material?
No. State grade and thermal condition separately.
Does this family cover shaped tubing?
Yes, the family includes multiple shapes. Order the actual shape and its controlling dimensional requirements.
Can A513 replace a structural-tube standard?
Only through the responsible engineer’s review of the complete structural requirement; shared geometry is insufficient.
Which tolerances should be quoted?
Use the ordered edition, type, shape, size and condition. Request mill confirmation for any additional drawing limits.
Enquiry handoff
Turn this requirement into a reviewable enquiry
The selected branch records the next review action, not a conformity certificate. Confirm type, grade, shape, condition and dimensional provisions against the ordered edition.
Include the completed fields and the controlling drawing revision so exceptions can be returned against the right requirement. Prepare and copy the summary above, then open the steel-tubes 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.
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