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ASTM and ASME specifications
Enquire for A249 welded stainless tubing by grade, OD, wall and test requirements for your heat exchanger, boiler or condenser.
Request a quoteTechnical reference
| Field | Order reference |
|---|---|
| Standard | ASTM A249/A249M or ASME SA-249 as ordered |
| Product or route | Welded austenitic heat-transfer tubing |
| Critical dimensions and fit | State grade, tube OD, wall basis and tube-sheet joint detail |
| 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 |
|---|---|---|---|
| 15.88 | 1.24 | 13.40 | 0.46 |
| 19.05 | 1.65 | 15.75 | 0.72 |
| 25.4 | 2.11 | 21.18 | 1.24 |
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 |
|---|---|---|
| TP304L | S30403 | Welded heat-transfer tube when called out |
| TP316L | S31603 | Welded molybdenum-bearing heat-transfer tube when called out |
Reference ASTM A249/A249M 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
Match the examination and heat-treatment records to the welded tube lot. Include any project-required seam finish, tube-sheet fit checks or witness points.
| 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
Ask for the offered heat treatment, applicable weld and lot examinations and required reports.
| 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 |
A213 covers specified seamless heat-transfer tubes.
For the enquiry, state grade, tube OD, wall basis and tube-sheet joint detail.
ASTM A249/A249M or ASME SA-249 as ordered · 15.88 × 1.24 mm. Add quantity, lengths, delivery city and the required reports.
Ordering guidance
A249 covers welded austenitic steel tubing for applications such as boilers, heat exchangers and condensers. Provide the TP grade, actual OD, wall thickness and length under the specified edition.
If the project requires seam-related examination or additional tests, include them on the purchase list. A249 and A213 describe different product scopes; do not offer a welded tube as an automatic substitute for a seamless requirement.
Check pricing and availability →
Buyer’s guide
A249 covers welded austenitic steel tubes for boiler, superheater, heat-exchanger and condenser applications within the specification. Confirm the grade, edition and whether the project orders the ASTM or corresponding ASME designation. A general-service welded tube quote needs separate review when the equipment drawing specifies A249 or SA-249.
Give actual OD, wall basis and finished length from the bundle or equipment drawing. Indicate whether the tubes will be expanded or welded into the tube sheet. Specify any required conditions at the ends or weld seam so they can be considered before the supplier prices manufacture or preparation.
Provide the inspection plan and acceptance requirements for the records to be supplied. If the project specifies tests, dimensional reports or a hold point, state them on the quote request. Ask whether the proposed route, heat treatment and test records will be identified against each lot.
| If the drawing requires | Verify in the offer |
|---|---|
| Welded heat-transfer tubing | A249 or SA-249, exact grade and permitted delivery condition |
| A seamless heat-transfer alternative | Check the specified grade and scope under A213 or SA-213 with the equipment authority |
| Tube-sheet fit | Actual OD, wall basis, finished length and end conditions |
| Inspection release | Examination method, report and any witness requirement |
For a welded condenser retube, request the specified A249 or SA-249 grade, actual OD, minimum or nominal wall and finished length. Attach the tube sheet detail and specify the examination reports required before shipment.
Ask the buyer to confirm the exact ASME designation and edition against the equipment drawing before pricing the line.
Technical references ASTM A249/A249M scope · ASTM steel standards directory · ASME Boiler and Pressure Vessel Code, Section II
Prepare your enquiry
| Item | What to send |
|---|---|
| Product details | A249 or SA-249 as specified · grade · actual OD · wall · length · test scope |
| Delivery | Quantity with units, delivery city and required date if known |
| Acceptance | Required certificates and inspection scope; attach the drawing revision where applicable |
Only as a clearly identified alternative if the project allows it. Obtain engineering approval before substitution.
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