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ASTM A269 TP304 Seamless and welded Tube: Premium Austenitic Stainless Steel for Boiler & Heat Exchanger
ASTM A269 TP304 Seamless and welded tube is a widely used high-quality austenitic stainless steel tubular product manufactured per strict ASTM A269 industrial standards. As the most versatile grade in the 300-series stainless steel family, the SA213 TP304 boiler tube features a balanced 18Cr-8Ni alloy formula, delivering outstanding corrosion resistance, high-temperature stability, and excellent formability. It is the mainstream choice for industrial heat exchange systems, boiler piping, chemical processing pipelines, and general high-temperature service equipment, favored by global manufacturers for its reliable performance and cost-effective advantages.
The core strengths of ASTM A269 TP304 stainless steel tube lie in its superior comprehensive mechanical and chemical properties. With standard 18.0–20.0% chromium and 8.0–11.0% nickel composition, this TP304 high-temperature Seamless and welded tube forms a dense protective oxide layer on the surface, effectively resisting oxidation, rusting, and mild acid corrosion in high-temperature and humid environments. Unlike carbon steel and low-alloy steel tubes, it maintains stable structural performance under continuous thermal cycling, avoiding deformation, cracking, and service aging. Its excellent weldability and machinability greatly simplify cutting, bending, and on-site installation processes, perfectly adapting to diverse industrial construction requirements.
Suitable for long-term service under medium and high-temperature working conditions, ASTM A269 TP304 industrial Seamless and welded tube boasts stable mechanical properties at both room temperature and elevated temperatures. It features ideal ductility and toughness, with no brittle fracture during frequent temperature changes, ensuring long-term safe operation of pipeline systems. All our TP304 Seamless and welded tubes undergo strict quality control, including hydraulic pressure testing, ultrasonic non-destructive testing, dimensional tolerance inspection, and surface quality detection. Each batch is equipped with complete MTR certificates and ASME standard compliance reports, fully meeting global engineering bidding, installation, and acceptance specifications.
|
Element |
Specification Range (wt%) |
|
Carbon (C) |
≤ 0.08 |
|
Silicon (Si) |
≤ 1.00 |
|
Manganese (Mn) |
≤ 2.00 |
|
Phosphorus (P) |
≤ 0.045 |
|
Sulfur (S) |
≤ 0.030 |
|
Chromium (Cr) |
18.00 – 20.00 |
|
Nickel (Ni) |
8.00 – 11.00 |
|
Nitrogen (N) |
≤ 0.10 |
|
Iron (Fe) |
Balance |
|
Mechanical Property |
Standard Value |
|
Minimum Tensile Strength |
515 MPa |
|
0.2% Offset Yield Strength (Min) |
205 MPa |
|
Elongation (50mm Gauge, Min) |
40% |
|
Maximum Rockwell Hardness (HRB) |
92 HRB |
|
Maximum Brinell Hardness (HB) |
201 HB |
SA213 TP304 Seamless and welded stainless steel tube delivers exceptional durability and versatility in diverse industrial scenarios. Its stable austenitic microstructure ensures excellent toughness and corrosion resistance in atmospheric, water vapor, and mild corrosive medium environments. Compared with ordinary carbon steel tubes, it features a longer service life, lower maintenance frequency, and better comprehensive economic benefits. It can withstand continuous working temperatures up to 870℃, making it ideal for medium-temperature boiler systems, heat exchanger equipment, food processing pipelines, and petrochemical general piping systems.
As a reliable ASTM A269 TP304 tube supplier, we provide standard-size and custom-processed Seamless and welded tubes, supporting bulk wholesale and global fast delivery. All products strictly comply with ASTM A269 standards, with complete certification documents to support project inspection and after-sales service. Whether for new project construction or equipment renovation, TP304 Seamless and welded tubes are your most trustworthy high-performance stainless steel piping solution.