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ASTM and ASME specifications
Enquire for stainless A213 seamless tubes. Send the grade, OD, wall basis, cut length and documentation requirements.
Request a quoteTechnical reference
| Field | Order reference |
|---|---|
| Standard | ASTM A213/A213M or ASME SA-213 as ordered |
| Product or route | Seamless ferritic and austenitic alloy-steel heat-transfer tubes within its scope |
| Critical dimensions and fit | Specify the exact grade, OD, wall basis and straight or U-bend geometry |
| Supply enquiry | Confirm sizes, lengths, route, documentation and lead time for your order |
Illustrative drawing sizes. The bore and mass are calculated from the nominal dimensions. Use the project tolerance and confirm the size and route in the quote.
| Tube OD (mm) | Wall (mm) | Nominal bore (mm) | Estimated kg/m at 8,000 kg/m³ |
|---|---|---|---|
| 19.05 | 2.11 | 14.83 | 0.90 |
| 25.4 | 2.77 | 19.86 | 1.58 |
| 38.1 | 3.2 | 31.70 | 2.81 |
Use the approved design code and service conditions. The applicable rating depends on material, temperature, minimum effective wall, joint details and the limits of the connected assembly. A schedule or a hydrostatic test result alone cannot establish an operating pressure.
Reference ASME process piping code B31.3
Selected grade designations to check against the ordered edition. Use that edition’s chemistry table for the complete element limits.
| Grade | UNS | Product context |
|---|---|---|
| TP304H | S30409 | Seamless austenitic hot-service tube |
| TP316H | S31609 | Seamless molybdenum-bearing hot-service tube |
| TP321H | S32109 | Titanium-stabilised hot-service tube |
| TP347H | S34709 | Niobium-stabilised hot-service tube |
Reference ASTM A213/A213M scope
| Check | What to match |
|---|---|
| Grade and specification | TP or UNS on the quotation and material report |
| Heat analysis | Full limits and any stabilising or alloy additions under the ordered edition |
Reference ASTM steel standards
Use the grade-specific material condition and applicable inspection requirements. State the wall basis, straight or U-bend geometry and any separate bend acceptance on the enquiry.
| Check | What to verify |
|---|---|
| Condition | Heat treatment or cold-work condition stated for the offered form |
| Acceptance | Project-specified dimensions and relevant test records |
Reference ASTM steel standards
Confirm material condition, tests and any project witness points.
| When | What to check |
|---|---|
| Before ordering | Document the required test method, edition and any witness points |
| At delivery | Match the material report and heat or lot identification to the shipment |
A249 is the corresponding welded austenitic product choice where approved.
For the enquiry, specify the exact grade, OD, wall basis and straight or U-bend geometry.
ASTM A213/A213M or ASME SA-213 as ordered · 19.05 × 2.11 mm. Add quantity, lengths, delivery city and the required reports.
Ordering guidance
A213 covers seamless ferritic and austenitic alloy-steel tubes for boilers, superheaters and heat exchangers. This page covers enquiries for the stainless grades. Specify the exact grade and any ASME designation on the order.
Give actual OD, wall and the stated wall basis, together with length and required tests. If your drawing permits a welded alternative, identify its nominated standard separately rather than treating it as A213.
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Buyer’s guide
A213 covers seamless ferritic and austenitic alloy-steel tubes for specified heat-transfer duties. This page addresses enquiries for the stainless grades within that broader scope. Copy the approved grade, material condition, specification and edition from the equipment documentation. For an ASME order, use the SA designation and code edition required by the project.
Give actual OD, minimum or nominal wall as specified, straight length or the U-bend schedule, and quantity by size. If the project imposes limits on bend thinning or a tube-sheet fit, attach the applicable drawing and acceptance criteria. The required tube geometry determines which fabrication and inspection steps should be included in the offer.
Identify the specified testing, material traceability and hold points. Ask for confirmation of the offered seamless route and delivery condition on the quotation. If a welded A249 offer is available as a possible alternative, submit it as a deviation and check with the equipment authority before ordering.
| Drawing detail | What to put in the enquiry |
|---|---|
| Grade and route | Exact A213 or SA-213 grade and required condition |
| Straight tubes | Actual OD, wall basis, length and quantity |
| U-tubes | Bend radius, leg dimensions and specified inspection at bends |
| Welded option for review | ASTM A249 / ASME SA-249 Stainless Steel Tubes |
For a bundle request, list the A213 or SA-213 grade, actual OD, wall basis, lengths and piece count. Give a separate schedule for bends and include the required release documents.
The specification includes both ferritic and austenitic alloy-steel grades. Confirm the exact grade required for the equipment and the intended product form.
Technical references ASTM A213/A213M scope · ASTM steel standards directory · ASME Boiler and Pressure Vessel Code, Section II
Prepare your enquiry
| Item | What to send |
|---|---|
| Product details | A213 or SA-213 as specified · stainless TP grade · OD · wall basis · cut length |
| Delivery | Quantity with units, delivery city and required date if known |
| Acceptance | Required certificates and inspection scope; attach the drawing revision where applicable |
No. Specify tubing by actual outside diameter and wall rather than a pipe schedule.
Technical reference: ASTM steel standards catalogue
Project enquiries
Send your dimensions, quantities and delivery city. Include any inspection or material certificate requirements so they can be quoted against the same line items.
Request a quote → Call +91 99204 92715