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ASTM and ASME specifications
Request an ASTM A269 tubing quote by grade, OD, wall, manufacturing route and finish. Include any project-specific tolerances.
Request a quoteTechnical reference
| Field | Order reference |
|---|---|
| Standard | ASTM A269/A269M or ASME SA-269 as ordered |
| Product or route | Seamless or welded austenitic general-service tubing |
| Critical dimensions and fit | List exact OD, wall, grade, straight or coiled form and any fitting constraints |
| 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 |
|---|---|---|---|
| 6.35 | 0.89 | 4.57 | 0.12 |
| 12 | 1 | 10.00 | 0.28 |
| 25.4 | 1.65 | 22.10 | 0.98 |
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 |
|---|---|---|
| TP304 | S30400 | General-service tubing |
| TP304L | S30403 | Low-carbon general-service tubing |
| TP316 | S31600 | Molybdenum-bearing general-service tubing |
| TP316L | S31603 | Low-carbon molybdenum-bearing tubing |
Reference ASTM A269/A269M 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
A269 provides for applicable forming and hardness tests and requires a nondestructive electric or hydrostatic test on each tube. Match the method and reported results to the ordered route and edition.
| 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 applicable test result and check lot and marking against the supplied material.
| 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 |
Use A270 where the project calls for sanitary tubing.
For the enquiry, list exact OD, wall, grade, straight or coiled form and any fitting constraints.
ASTM A269/A269M or ASME SA-269 as ordered · 6.35 × 0.89 mm. Add quantity, lengths, delivery city and the required reports.
Ordering guidance
A269 covers seamless and welded austenitic stainless steel tubing for general service. State the grade, actual OD and wall, length and manufacturing route when the project requires one.
If the tubing connects to a specified fitting or instrument, include the associated finish, tolerance and material conditions. A269 alone does not establish suitability for a sanitary or pressure service application.
Check pricing and availability →
Buyer’s guide
A269 covers seamless and welded austenitic stainless tubing for general service. Confirm the grade and product specification on the drawing. When both routes are permitted, request separate pricing if it affects procurement, test records or the fitting system. The tube standard alone leaves choices such as coil length and surface finish to the order.
Copy the actual OD and wall from the instrument or line schedule. Keep inch and metric sizes on separate lines so similar values do not lead to fitting mismatches. Identify straight or coiled supply, cut lengths or minimum continuous lengths, and any delivery condition required by the fittings.
For a sanitary duty, review the nominated product and finish standard. If the order specifies A270, include the bore finish, cleanliness, inspection and packaging required for that line. An A269 offer may need additional review if a hygienic application uses it with supplementary requirements.
| Supply option | Add to the RFQ |
|---|---|
| Straight lengths | Piece count, cut length and any end preparation |
| Coils | Minimum continuous length, restrictions on joins and packaging limits |
| Compression fitting service | Exact fitting OD and permitted tube condition |
| Hygienic bore with separate finish requirements | ASTM A270 Sanitary Tubing |
A general-service enquiry could read A269 TP316L, 12 mm OD × 1 mm wall, straight lengths per panel drawing, with capped ends and material documentation. Add the approved route and any fitting requirements before ordering.
Use the approved design and fitting specifications. Grade, diameter, wall tolerance, temperature and connection details affect the assembled line.
Technical references ASTM A269/A269M scope · ASTM steel standards directory
Prepare your enquiry
| Item | What to send |
|---|---|
| Product details | A269 or SA-269 as specified · grade · OD · wall · length · finish |
| Delivery | Quantity with units, delivery city and required date if known |
| Acceptance | Required certificates and inspection scope; attach the drawing revision where applicable |
State it if your project restricts the choice. Otherwise ask the supplier to identify the route quoted.
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