309 Stainless Steel Pipe/Tube Details
Overview
309 stainless steel pipe/tube is an austenitic stainless steel known for its high-temperature oxidation resistance and excellent strength at elevated temperatures. It is primarily used in applications where resistance to heat and corrosion is essential, making it suitable for use in high-temperature environments and harsh conditions.
Key Characteristics
High-Temperature Resistance: Provides superior resistance to oxidation and maintains strength at temperatures up to 2000°F (1093°C).
Excellent Corrosion Resistance: Offers good resistance to oxidation, sulfidation, and other forms of high-temperature corrosion.
Good Strength: Maintains high tensile and yield strength, even at elevated temperatures.
Formability: Easily formed and fabricated into various shapes and sizes.
Weldability: Can be welded using standard techniques, although preheating and post-weld heat treatment may be required for optimal results.
Magnetic Properties: Typically non-magnetic in the annealed condition, but may become slightly magnetic when cold-worked.
Chemical Composition
Carbon (C): ≤ 0.20%
Manganese (Mn): 2.00-3.00%
Silicon (Si): ≤ 1.00%
Phosphorus (P): ≤ 0.045%
Sulfur (S): ≤ 0.030%
Chromium (Cr): 24.00-26.00%
Nickel (Ni): 12.00-15.00%
Common Applications
High-Temperature Furnaces: Used in furnace parts, such as heat shields and combustion chambers, due to its excellent high-temperature oxidation resistance.
Exhaust Systems: Applied in industrial exhaust systems, including those in power plants and petrochemical facilities, for its durability under high temperatures.
Heat Exchangers: Suitable for use in heat exchangers and other equipment exposed to high temperatures and corrosive environments.
Chemical Processing: Employed in chemical processing equipment that operates at elevated temperatures and aggressive conditions.
Oven Linings: Used in oven linings and other high-temperature industrial applications where oxidation resistance is critical.
Advantages
Superior High-Temperature Performance: Maintains strength and resists oxidation at elevated temperatures, making it suitable for extreme environments.
Excellent Corrosion Resistance: Offers good resistance to oxidation and other forms of corrosion, extending the lifespan of components.
Good Strength: Provides high mechanical strength even in high-temperature applications.
Versatile Fabrication: Can be easily formed and welded into various shapes and sizes, allowing for flexible design and construction.
Cost-Effective: Offers high performance for high-temperature applications at a relatively lower cost compared to more specialized alloys.
Summary
309 stainless steel pipe/tube is an austenitic stainless steel designed for high-temperature applications requiring excellent oxidation resistance and strength. Its chemical composition provides durability and performance in harsh environments, making it ideal for use in high-temperature furnaces, exhaust systems, heat exchangers, chemical processing, and oven linings. Offering a combination of high-temperature performance and versatility, 309 stainless steel is a reliable choice for demanding applications.
For more detailed information or specific inquiries about 309 stainless steel pipe/tube, please contact us.
Common Surfaces
Stainless Steel Standards Comparison Table
| STS |
USA |
UNS |
CHINA |
EURONORM |
RUSSIA |
SWEDISH |
JAPANESE |
| GRADE |
AISI/ASTM |
NO |
GB |
NO |
NAME |
GOST |
SS |
JIS |
| 201 |
201 |
S20100 |
12Cr17Mn6Ni5N |
1.4372 |
- |
- |
- |
SUS 201 |
| 301 |
301 |
S30100 |
12Cr17Ni7 |
1.4310 |
X 12 CrNi 17 7 |
- |
2331 |
SUS 301 |
| 303 |
303 |
S30300 |
1Cr18Ni9MoZr |
1.4305 |
X 10 CrNiS 18 9 |
- |
2346 |
SUS 303 |
| 304 |
304 |
S30400 |
06Cr18Ni9 |
1.4301 |
X 6 CrNi 18 10 |
08KH18N10
06KH18N11 |
2332 |
SUS 304 |
| 304L |
304L |
S30403 |
022Cr19Ni10 |
1.4307 |
X 3 CrNi 18 10 |
03KH18N11 |
2352 |
SUS 304L |
| 316 |
316 |
S31600 |
0Cr17Ni12Mo2 |
1.4401 |
X 6 CrNiMo 17 12 2 |
- |
2347 |
SUS 316 |
| 316L |
316L |
S31603 |
022Cr17Ni12Mo2 |
1.4404 |
X 3 CrNiMo 17 12 2 |
- |
2348 |
SUS 316L |
| 316Ti |
316Ti |
S31635 |
0Cr18Ni12Mo2Ti |
1.4571 |
X 6 CrNiMoTi 17 12 2 |
08KH17N13M2T
10KH17N13M2T |
2350 |
- |
| 321 |
321 |
S32100 |
0Cr18Ni11Ti |
1.4541/1.4878 |
X 6 CrNiTi 18 10 |
12KH18N10T |
2337 |
SUS 321 |
| 347 |
347 |
S34709 |
0Cr18Ni11Nb |
1.4550 |
X 6 CrNiNb 18 10 |
- |
2338 |
SUS 347 |
| 309S |
309S |
S30908 |
0Cr23N13 |
1.4833 |
X 6 CrNi 22 13 |
20KH23N18 |
- |
SUS 309S |
| 310S |
310S |
S31008 |
06Cr25Ni20 |
1.4842 |
X 6 CrNi 25 20 |
20KH25N20S2 |
2361 |
SUS 310S |
| 416 |
416 |
S41600 |
Y1Cr13 |
1.4005 |
X12CrS13 |
- |
2380 |
SUS 416 |
| 2205 |
2205 |
S32205/S31803 |
00Cr22Ni5Mo3N |
1.4462 |
X2CrNiMoN22-5-3 |
02Ch22N5AM2 |
2377 |
SUS 329J3L |
| 2507 |
2507 |
S32750 |
00Cr25Ni7Mo4N |
1.4410 |
X 2 CrNiMoN 25-7-4 |
- |
- |
- |
| 904L |
904L |
N08904 |
- |
1.4539 |
- |
- |
- |
- |
| 254SMO |
254SMO |
S31254 |
- |
1.4547 |
X1CrNiMoCuN20-18-7 |
- |
2378 |
- |
| 253MA |
253MA |
S30815 |
- |
1.4835 |
X9CrNiSiNCe21-11-2 |
- |
2368 |
- |
| 17-4PH/630 |
17-4PH/630 |
S17400 |
0Cr17Ni4Cu4Nb |
1.4542 |
X5CrNiCuNb16-4 |
05Ch16N4D2B |
- |
SUS630 |
