Product Overview – ASTM A269 TP304 Welded Tubes
ASTM A269 TP304 welded stainless steel tubes are austenitic stainless steel tubes manufactured for general service applications requiring high corrosion resistance and reliable mechanical properties.
These tubes are produced using high-quality stainless steel strips that are precision rolled and welded, followed by heat treatment and pickling to ensure uniform grain structure and surface finish.
TP304 welded tubes offer excellent resistance to atmospheric corrosion, industrial chemicals, and mild oxidizing environments.
Due to their hygienic surface finish and formability, ASTM A269 TP304 tubes are widely used in instrumentation systems, food processing plants, pharmaceutical manufacturing facilities, chemical processing units, and oil & gas installations.
The tubes provide consistent dimensional tolerance and smooth internal surfaces, making them ideal for fluid transport, pressure lines, and instrumentation tubing systems.
Standard & International Identification - ASTM A269 TP304 Welded Tubes
Technical Specifications – TP304 Welded Tubes
| Tube Type: | Welded Stainless Steel Tubes |
| Manufacturing Process: | Cold Rolled Strip → Automatic Welding → Heat Treatment → Pickling & Passivation |
| Outer Diameter: | 6 mm to 114 mm |
| Wall Thickness: | 0.5 mm to 6 mm |
| Length Options: | Random / Cut Length / Custom Fabricated Tubes |
| Surface Finish: | Bright Annealed / Pickled & Annealed / Polished Finish Available |
| Testing & Inspection: | Hydrostatic Test, Eddy Current Test,Flattening Test, PMI, Flaring Test |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A269 / ASME SA269 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – Stainless Steel TP304 Welded Tubes
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.08% |
| Manganese (Mn): | 2.00 % |
| Silicon (Si): | 1.00% |
| Phosphorus (P): | 0.045 % |
| Sulfur (S): | 0.030 % |
| Chromium (Cr): | 18.0-20.0% |
| Nickel (Ni): | 8.0-10.5% |
| Iron : | Balance |
Note: The chromium and nickel combination provides excellent corrosion resistance and structural stability.
Mechanical Properties – ASTM A269 TP304 Tubes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 35% |
These mechanical properties ensure reliability in instrumentation and process tubing systems.
Corrosion Resistance of SS 304 Welded Tubes
Stainless Steel 304 welded tubes provide excellent corrosion resistance in many industrial environments.
Key corrosion advantages include:
These properties make TP304 tubes suitable for process piping, instrumentation lines, and sanitary systems.
Major Industrial Applications of TP304 welded stainless steel tubes
- ASTM A269 TP304 welded stainless steel tubes are widely used in:
- 🔸Instrumentation Tubing Systems
- 🔸Food Processing Plants
- 🔸Chemical Processing Industries
- 🔸Oil and Gas Installations
- 🔸Water Treatment Plants
- 🔸Dairy and Beverage Processing Equipment
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