Seamless stainless pipe for pressure and high-temperature service. Manufactured to ASTM A312 in schedules 10S through 80S, with hydro test and MTC supplied as standard. The default choice for oil, gas, chemical and steam lines.
| Grades available | 304 / 304L / 316 / 316L / 321 |
|---|---|
| Sizes | 1/2" to 24" NB |
| Thickness | SCH 10S / 40S / 80S / XS |
| Finish | Pickled & passivated |
| Minimum order | 100 kg |
| Standard | ASTM A312 / A358 / ASME SA312 |
| Length | Single random, double random, cut |
| Ends | Plain, bevelled, threaded |
| Testing | Hydro, eddy current, PMI, IGC |
| Certification | EN 10204 3.1 MTC |
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Theoretical weight only. Mill rolling tolerance normally makes the delivered weight differ by 2–5%; we invoice on actual weighbridge weight.
What the metal is actually made of, as specified by the standard.
The default austenitic grade — about half of all stainless sold. Good corrosion resistance, easy to form and weld.
Strip shows the mid-point of each specified range, with iron as balance. The table below is the full specification.
| Element | Name | Specified % by weight | |
|---|---|---|---|
| C | Carbon | ≤ 0.070 | |
| Mn | Manganese | ≤ 2.00 | |
| Si | Silicon | ≤ 0.750 | |
| P | Phosphorus | ≤ 0.045 | |
| S | Sulphur | ≤ 0.030 | |
| Cr | Chromium | 17.50 – 19.50 | |
| Ni | Nickel | 8.00 – 10.50 | |
| N | Nitrogen | ≤ 0.100 | |
| Fe | Iron | Balance | ≈ 70.8% |
Limits as per ASTM A240 / A276. Always confirm against the mill test certificate for your consignment.
Cut-to-length, slitting and custom sections are done in-house. Send the drawing or the dimensions and we will confirm price and lead time.