300 Series 309S Seamless Stainless Steel Pipe For Architectural / Civil Engineering
300 Series 309S Seamless Stainless Steel Pipe For Architectural / Civil Engineering
Seamless Stainless Steel Pipe Introduction
309S stainless steel is a highly alloyed austenitic stainless steel used for its excellent oxidation resistance, high-temperature strength, and creep resistance. The lower nickel content of Stainless Steel 309, compared to Stainless Steel 310, improves its resistance to hydrogen sulfide (H2S) attack at high temperatures.Stainless Steel 309S is used for its high-temperature oxidation resistance and/or resistance to H2S attack for applications such as furnace parts, firebox sheets, high-temperature containers, catalytic converters, and exhaust systems.
Parameters
| NO | EN | ASTM/UNS | C | N | Cr | Ni | Mo | other |
| 1 | 1.4301 | 304 | 0.04 | 18.1 | 8.3 | |||
| 2 | 1.4307 | 304L | 0.02 | 18.1 | 8.3 | |||
| 3 | 1.4541 | 321 | 0.04 | 17.3 | 9.1 | Ti0.24 | ||
| 4 | 1.4550 | 347 | 0.05 | 17.5 | 9.5 | Nb0.012 | ||
| 5 | 1.4401 | 316 S31608 |
0.04 | 17.2 | 10.2 | 2.1 | ||
| 6 | 1.4404 | 316L S31603 |
0.02 | 17.2 | 10.2 | 2.1 | ||
| 7 | 1.4406 | 316LN | 0.02 | 0.14 | 17.2 | 10.3 | 2.1 | |
| 8 | 1.4429 | S31653 | 0.02 | 0.14 | 17.3 | 12.5 | 2.6 | |
| 9 | 1.4571 | 316Ti S31635 |
0.04 | 17 | 10.6 | 2.1 | Ti0.30 | |
| 10 | 1.4438 | 317L S31703 |
0.02 | 18.2 | 13.5 | 3.1 | ||
| 11 | 1.4439 | 317LMN | 0.02 | 0.14 | 17.8 | 12.6 | 4.1 | |
| 12 | 1.4435 | 316LMOD 724L |
0.02 | 0.06 | 17.3 | 13.2 | 2.6 |
Chemical Properties: 309
| 309S | C | Si | Mn | P | S | Ni | Cr |
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 12.00~15.00 | 22.00~24.00 |
Seamless Stainless Steel Pipe Applications
- Architectural/Civil Engineering: Cladding, handrails, door and window fittings, street furniture, structural sections, enforcement bar, lighting columns, lintels, masonry supports.
- Transport: Exhaust systems, car trim/grilles, road tankers, ship containers, ships chemical tankers, refuse vehicles.
- Chemical/Pharmaceutical: Pressure vessels, process piping.
- Oil and gas: Platform accommodation, cable trays, sub-sea pipelines.
- Medical: Surgical instruments, surgical implants, food processing.
- Food and Drink: Catering equipment, brewing, distilling, food processing.
- Water: Water and sewage treatment, water tubing, hot water tanks.
- General: Springs, fasteners(bolts, nuts and washers) wire.
Seamless Stainless Steel Pipe Details
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