Guaranteed on time delivery
Gayatri tubes are the unparalleled exporters, manufacturers, and wholesalers of SS 321 / 321H Pipes. We are the most skilled providers of these grades of pipes. We manufacture these pipes in varying grades, shapes, and sizes so that they can be put to use in different applications. Furthermore, all of our products are following the various national and international standards so that they can be used in all the industries. The standards ensure that the product follows certain guidelines that are necessary from the industrial point of view. We make sure that the durability of the SS 321 / 321H Pipes that we manufacture is very high and they give a long work period to the customer I the respective application where they are put to use. We also make several other pipes in various forms of grades which all have unique characteristics than each other that ensure that they can be used in the industry that requires varying applications.
The different characteristics that are involved with the different grades are the resistance to corrosion, resistance to crevice corrosion, resistance to pitting and many more. It also provides an excellent resistance to the corrosion that happens majorly because of the intergranular particles. Such property is required the most by the industries and therefore the pipes that we manufacture have these properties. The collection of SS 321 / 321H that we do provide is the best for working in the environments that require a high bearing capacity of critical temperatures. This also makes them capable of having high tensile strength and high-stress rupture. Therefore these pipes can be put to use in those applications where these properties are required.
We provide these pipes in a range of shapes and sizes. There are several tests that are performed on our range of pipes that we manufacture. The tests are conducted to ensure that the products are fit for the various needs in industrial applications and don’t get any complaints in the quality. The several tests that we conduct are durability test, flattening test, pitting resistance test, and much more tests. These tests possess high importance to the products.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
| Specifications | ASTM A312, A358 / ASME SA312, SA358 |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Thickness Range | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Pipes, Square Pipes, Rectangular Pipes |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| EN 10216-5 | EN 10216 321 Seamless Steel Pipe, EN 10216-5 1.4541 Seamless Steel Pipes for pressure purposes |
| EN 10217-7 | EN 10217 321 Welded Steel Pipe, Steel EN 10217-7 1.4541 Welded Pipes for pressure purposes |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 - 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
