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Specialist tubing
Request a quote for stainless heat exchanger tubes. Include the tube drawing, grade, OD, wall basis, length and required testing.
Request a quoteTechnical reference
| Field | Order reference |
|---|---|
| Standard | A213 seamless alloy-steel tubes or A249 welded austenitic tubes where specified |
| Product or route | Straight or U-bend tubes for a nominated bundle |
| Critical dimensions and fit | Give tube-sheet dimensions, finished length, bend schedule and nominal or minimum wall |
| 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 | 1.65 | 15.75 | 0.72 |
| 25.4 | 2.11 | 21.18 | 1.24 |
| 31.75 | 2.77 | 26.21 | 2.02 |
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
The grade on the purchase line controls chemistry. Specify the grade with the finished product standard or drawing.
| 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 ordered grade, delivery condition and product standard to review the actual tensile, yield, elongation or hardness results required by the order.
| 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
Identify inspection required for the tube, bends and end fit.
| 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 |
A179/SA-179 is a low-carbon steel exchanger tube specification.
For the enquiry, give tube-sheet dimensions, finished length, bend schedule and nominal or minimum wall.
A213 seamless alloy-steel tubes or A249 welded austenitic tubes where specified · 19.05 × 1.65 mm. Add quantity, lengths, delivery city and the required reports.
Ordering guidance
For straight tubes, provide OD, wall basis and cut length. For a U-tube requirement, also provide bend dimensions and the drawing revision. Identify any length, end preparation or inspection requirements that differ between rows or passes.
When retubing equipment, request a quote against the existing drawing and nominated standard. Keep seamless and welded offers separate unless the equipment specification permits both. For A213 and A249, follow the relevant standard page for the product scope.
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Buyer’s guide
Use actual OD, wall basis, finished length and piece count. For U-tubes, provide the bend schedule, radius and leg dimensions. If the project sets different criteria at straight sections and bends, include both. Identify whether the scope is straight stock, formed tubes or a fully identified replacement set.
A213 covers seamless alloy-steel heat-transfer tubing within its scope. A249 covers welded austenitic heat-transfer tubing. Other standards can apply to other material families. When a replacement order identifies a different standard or route, log it for engineering review before comparing quotations on price.
State the joining method and any requirements for end preparation, surface condition, dimensional inspection or eddy-current examination. Ask for traceability by tube or bundle as specified. For staged shutdown work, identify which lengths or bend groups are needed first and how each set should be marked.
| Drawing calls for | Route and scope | Where to check |
|---|---|---|
| A213 or SA-213 | Seamless alloy-steel heat-transfer tube | ASTM A213 / ASME SA-213 Stainless Steel Tubes |
| A249 or SA-249 | Welded austenitic heat-transfer tube | ASTM A249 / ASME SA-249 Stainless Steel Tubes |
| A179 or SA-179 | Seamless low-carbon steel exchanger or condenser tube | Confirm the carbon steel requirement and project edition |
Send a bundle drawing with straight and U-tube quantities separated. Include the original material callout, OD, minimum or nominal wall, tube-sheet detail and the inspection records required for release.
It identifies a low-carbon steel heat-exchanger and condenser tube specification. Keep that order separate from stainless A213 or A249 lines, and use the code edition stated in the project.
Technical references ASTM steel standards directory · ASTM E426 eddy-current examination · ASME Boiler and Pressure Vessel Code, Section II
Prepare your enquiry
| Item | What to send |
|---|---|
| Product details | Drawing revision · OD · minimum or average wall as specified · cut length or bend dimensions · route |
| Delivery | Quantity with units, delivery city and required date if known |
| Acceptance | Required certificates and inspection scope; attach the drawing revision where applicable |
No. Include the drawing and bend geometry, plus tolerances and material requirements.
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