Stainless Steel 309 and 310 Pipes and Tubes are high-temperature austenitic stainless steels that offer excellent strength, oxidation resistance, and thermal stability. These grades are specifically designed for applications where elevated temperatures and thermal cycling are common.
One of the key features of Stainless Steel 309 and 310 pipes and tubes is their exceptional high-temperature strength. They can withstand temperatures up to 1100-1200°C (2012-2192°F) without losing their mechanical properties, making them ideal for applications in furnace parts, heat treatment equipment, and other high-temperature environments.
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Stainless Steel 309 and 310 also offer excellent oxidation resistance at elevated temperatures, making them suitable for applications involving exposure to air and combustion gases at high heat. Their composition, including a high content of chromium and nickel, contributes to this enhanced oxidation resistance.
The chemical composition of Stainless Steel 309 and 310 Pipes and Tubes typically includes approximately 22-24% chromium and 12-20% nickel, along with small amounts of other elements like manganese and silicon. The presence of these alloying elements provides their superior high-temperature properties.
Machining Stainless Steel 309 and 310 pipes and tubes can be challenging due to their high strength and work hardening rate. Specialized cutting tools and techniques, as well as adequate cooling during machining, are necessary to prevent work hardening and ensure precise fabrication.
Pipe Standard | ASTM A312 ASME SA312 / ASTM A358 ASME SA358 |
Tube Specifications | ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554 |
Pipe Dimension | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
Seamless Pipe Sizes | 1 / 2" NB - 16" NB |
Welded Pipe Sizes | 1 / 2" NB - 24" NB |
EFW Pipe Size | 6" NB - 24" NB |
Seamless Tube Sizes | 1 / 2" NB - 16" NB |
Welded Tube Sizes | 1 / 2" NB - 24" NB |
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 |
Manufacturing Process | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
Pipe Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
Pipe Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
Length | Single Random, Double Random, Standard & Cut length |
End Types | Plain Ends (PE) Threaded Ends (TE) Bevelled Ends (BW) Grooved Mechanical Joints or Grooved Ends, TBE (Treaded Both Ends) |
Form | Round, Square, Hollow, Rectangular, Instrumentation, High Pressure, Cold Rolled Coiled, Electropolish, Heat exchanger, Sanitary etc. |
STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
SS 309 | S30900 | 1.4833 | - | - | - | - | - |
SS 310 | S31000 | 1.4841 | - | X2CrNi18-9 / X2CrNi19-11 | SUS 310 | 310S24 | 20Ch25N20S2 |
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
309 |
min. |
- |
- |
- |
- |
- |
18.0 |
- |
8.0 |
- |
max. |
0.20 |
2 |
1 |
0.045 |
0.030 |
23 |
14 |
- |
||
310 |
min. | – | – | – | – | – | 24.0 | – | 19.0 | – |
max. | 0.25 | 2.0 | 1.50 | 0.045 | 0.030 | 26.0 | 22.0 | – |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
Rockwell B (HR B) max |
Brinell (HB) max |
|||
620 |
310 |
45% |
85 |
169 |
Seamless Pipes
Welded Pipe
ERW Pipe
EFW Pipe
Polished Pipe
Seamless Tubes
Welded Tube
ERW Tube
Electropolished Tube
Stainless Steel 309 and 310 pipes and tubes find applications in industries where resistance to high temperatures and thermal cycling is critical. In the heat treatment industry, they are used for radiant tubes, muffles, and baskets in furnaces, where they can withstand extreme heat and thermal stresses. In the petrochemical sector, these pipes and tubes are employed for ethylene cracking furnaces and other high-temperature processing units. They are also used in the power generation industry for boiler tubes and superheater tubes, where high-temperature steam is involved. Additionally, Stainless Steel 309 and 310 pipes and tubes find use in various combustion chambers, kilns, and other high-temperature equipment across industries.
Prices for SS 309 Pipes and Tubes Products are very affordable. Please click on the request a quote button or Click Here to request the updated price list and ready stock information along with your requirement. Bhansali Enterprise SS 309 maintains a stock of all standard items and can export them at the best price ASME SA312 310 Stainless Steel Seamless Pipe, Welded Tube, Seamless Tube, Welded Pipe, Round Pipe, Polished Tube, ERW Pipe, ERW Tube etc.
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