Stainless Steel 304 tubes are widely used in industrial and precision engineering applications where corrosion resistance, dimensional accuracy and structural strength are essential. SS 304 is an austenitic chromium-nickel stainless steel that provides excellent resistance to oxidation and corrosion across a wide range of environments.
Our SS 304 tubes are manufactured in accordance with international standards such as ASTM A213 and ASTM A269 and are available in seamless and welded forms. Each tube is supplied with mill test certificates ensuring material traceability and compliance with project specifications.
Stainless Steel 304 tubes are produced in grades such as 304, 304L and 304H to accommodate different application requirements including improved weldability or high temperature performance. These tubes are manufactured according to ASTM A213 and ASTM A269 standards ensuring high dimensional precision and consistent mechanical properties.
Our SS 304 tubes are available in various sizes, thicknesses and finishing options suitable for heat exchangers, instrumentation systems and structural applications. Tubes can be supplied in seamless or welded forms with different surface finishes depending on industrial requirements.
| Specification | Details |
|---|---|
| Grades | 304, 304L, 304H |
| Standards | ASTM A213, ASTM A269 |
| Outer Diameter | 6 mm to 219 mm |
| Thickness | 0.5 mm to 12 mm |
| Types | Seamless Tubes, Welded Tubes |
| Forms | Round, Square, Rectangular, Hydraulic |
| Lengths | Single Random, Double Random, Cut Length |
| Ends | Plain End, Beveled End |
The chemical composition of SS 304 tubes contains chromium and nickel which provide excellent corrosion resistance and oxidation stability. Chromium forms a protective passive layer that prevents rusting while iron provides the structural strength required for tubing used in mechanical systems and instrumentation lines.
SS 304 tubing exhibits strong mechanical properties including high tensile strength and good ductility, making it suitable for pressure equipment, heat exchangers and sanitary piping systems.
| Element | Composition |
|---|---|
| Carbon | 0.08 max |
| Chromium | 18 – 20 |
| Nickel | 8 – 10.5 |
| Manganese | 2 max |
| Silicon | 1 max |
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 205 MPa |
| Elongation | 40 % |
| Hardness | 92 HRB max |
SS 304 tubes are manufactured using both seamless and welded production methods depending on application requirements. Seamless tubes are produced through hot extrusion and cold drawing processes which provide uniform strength and dimensional accuracy. Welded tubes are produced by rolling stainless steel coils and joining them using advanced welding techniques.
After fabrication, tubes undergo annealing, pickling and finishing processes to enhance corrosion resistance and ensure smooth internal surfaces required for fluid flow applications.
Quality assurance includes extensive testing procedures such as ultrasonic testing (UT), radiographic testing (RT), hydrostatic pressure testing and magnetic particle inspection (MPI). Mechanical tests including tensile, flattening and hardness testing ensure compliance with ASTM tubing standards. Chemical composition is verified through spectrometry for material accuracy.
All SS 304 tubes are supplied with complete quality documentation and inspection reports ensuring compliance with international standards.
SS 304 tubes are packed using export grade wooden boxes, bundles or protective wrapping to prevent damage during transportation. Each shipment includes proper labeling and documentation for traceability.
We provide flexible delivery timelines and global shipping support for industrial projects and international clients.
Contact our team for pricing, stock availability and delivery timelines.
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