Stainless Steel 304 Seamless Tube
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SS Seamless 304 Tube is an austenitic stainless steel grade with 18% chromium and 8% nickel. It has high strength and resistance to corrosion. It is known for its high weldability, pressure resistance, and durability. ASTM A312 SS 304 Tube is commonly used in the oil and gas, petrochemical, food processing, and structural work industries. Neeka Tubes is a reliable SS Seamless 304 Tube manufacturer, producing export-quality tubes in a variety of sizes and standards, including ASTM A312, A213, and DIN EN 10216-5. With global delivery capabilities and certified testing, we ensure dependable performance and long-term value.
Table of Content
- Most Common Types of SS 304 Seamless Tubing
- Stainless Steel 304 Seamless Tubing Specifications
- SS 304 Seamless Tubing Properties
- Stainless Steel 304 Seamless Tubing Dimensions
- Thickness Chart of SS 304 Seamless Tubing
- SS Seamless 304 Tube Manufacturing Process
- SS Seamless 304 Tube Packaging & Delivery
- Why Choose Neeka Tubes for SS Seamless 304 Tube?
- Industrial Application of SS 304 Seamless Tubes
- Frequently Asked Questions (FAQs)
Premium Grade 304 Stainless Steel Tubing, Best Deals On 304 Stainless Steel Seamless Tubing, The largest Stockist of 304 Stainless Seamless Tubing in Mumbai.
What is Stainless Steel Seamless 304 Tube?
Stainless Steel 304 Seamless Tube is a round, hollow tube made from high-quality grade 304 stainless steel without welds. This seamless construction ensures a smooth finish, consistent strength, and uniformity throughout its length. Grade 304 (UNS S30400) is an austenitic chromium-nickel alloy with superior corrosion, temperature tolerance, and sanitary properties. SS seamless 304 tube is made from a solid billet, which ensures superior pressure handling and purity. UNS S30400 seamless tubing has tight OD tolerances and an excellent internal surface finish, making it ideal for critical applications.
Benefits of Stainless Steel 304 Seamless Tubing
SS 304 Seamless Tubing provides numerous performance and application benefits, making it an excellent choice for demanding industries:
- High Corrosion Resistance: These tubes handle moisture and many mild acids without rusting or wearing away. They stay clean and safe when used in kitchens or food plants. Our tubes are bright look and solid feel for years.
- High Temperature Resistance: Heat does not make this steel soft or weak during normal use. It works well in hot exhaust systems or steam lines without losing its shape. The metal stays stable even when the temperature swings from cold to very hot.
- Superior Strength & Durability: The seamless design means there is no weak line that might split or crack. It handles heavy weight and high internal pressure much better than welded types. These tubes are built to last a lifetime under heavy daily use.
- Excellent Weldability & Formability: You can bend or shape these tubes easily to fit around corners or tight spots. They join together well using standard tools without creating brittle areas near the joints. This flexibility helps you finish your plumbing or build jobs much faster.
- Low Maintenance: The smooth surface prevents dirt and grime from sticking to the inside or outside. You won’t need to paint or coat the metal to keep it from breaking down. This saves you a lot of money and time on repairs over the long run.
Most Common Types of Stainless Steel 304 Seamless Tubing
SS 304 Seamless Tube
304 SS Round Tube
SS 304 square Tube
SS 304 Rectangular Tube
SS 304 Welded Steel Coil Tube
304 Stainless Steel Capillary Tube
Stainless Steel 304 Polished Tube
Stainless Steel 304 Cold Drawn Seamless Tube
Stainless Steel 304 Seamless Tubing Specifications
SS 304 seamless tubing specifications includes the sizes, wall thickness, and pressure classes available. It includes all standard options and supports both industrial and precision-based uses.
| Tube Range | 1/2″ OD – 12″ OD, Guage: 25 SWG – 10 SWG |
| Outer Diameter | 3.00 mm – 219.10 mm |
| Wall Thickness | 0.40 mm – 12.70 mm |
| Schedules | 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH |
| Length | Upto 30 meters, Custom Cut Lengths |
| Specifications | ASTM A213 / ASTM SA213 |
| Types | Round, Square, Rectangle, Coil, “U” Shape, Hydraulic & Honed Tubes |
304 Stainless Steel Tubing Chemical Composition
This table provides the chemical composition of 304 stainless steel, highlighting the chromium, nickel, and other elements that contribute to the tube’s strength and corrosion resistance.
| C | Mn | Si | P | S | Cr | Ni | Fe | |
| 304 | 0.08 max. | 2.00 max. | 1.00 max. | 0.045 max. | 0.03 max. | 18.0 – 20.0 | 8.0 – 10.5 | Balance |
304 Stainless Steel Tubing Mechanical Properties
The mechanical properties of 304 stainless steel tubing, such as tensile strength, yield strength, and elongation, are critical for high-pressure and temperature performance.
| 304 | |
| Density | 8 |
| Melting Range,℃ | 1400 ℃ |
| Elongation % | 40 |
| Tensile Strength (Mpa) | 515 |
| Yield Strength (Mpa) | 205 |
| Hardness (Brinell) | 201 |
Equivalent Grades for 304 Stainless Steel Seamless Tubing
The equivalent table for stainless steel 304 seamless tubes includes global standards, grade names, and UNS designations for material clarity.
| Type | UNS | JIS | EN/DIN | EN/BS | EN/NF | ISO | GB | GOST |
| 304 | S30400 | SUS304 | X5CrNi18-10 | 304S31 | Z7CN18.09 | 11 | 0Cr18Ni9 | 08KH18H10 |
Contact Neeka tubes today for a best offer & competitive quotation Of Stainless Steel 304 Seamless Tubing
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Stainless Steel 304 Seamless Tubing Dimensions
Dimensional data helps you in selecting the appropriate SS 304 seamless tube based on outer diameter, wall thickness, and length suitable for a variety of industrial applications.
| Nominal Bore Chart | Outside Diameter (O.D) | Schedule 5S | Schedule 10S | Schedule 40S | Schedule 80S | Schedule 160S | Schedule XXS | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wt mm | Weight (Kg./mt) | Wt mm | Weight (Kg./mt) | Wt mm | Weight (Kg./mt) | Wt mm | Weight (Kg./mt) | Wt mm | Weight (Kg./mt) | Wt mm | Weight (Kg./mt) | ||
| 3 | 10.3 | 1.24 | 0.276 | 1.24 | 0.28 | 1.73 | 0.37 | 2.41 | 0.47 | – | – | – | – |
| 6 | 13.7 | 1.24 | 0.390 | 1.65 | 0.49 | 2.24 | 0.631 | 3.02 | 0.80 | – | – | – | – |
| 10 | 17.1 | 1.24 | 0.490 | 1.65 | 0.63 | 2.31 | 0.845 | 3.20 | 1.10 | – | – | – | – |
| 15 | 21.3 | 1.65 | 0.800 | 2.11 | 1.00 | 2.77 | 1.27 | 3.75 | 1.62 | 4.75 | 1.94 | 7.47 | 2.55 |
| 20 | 26.7 | 1.65 | 1.03 | 2.11 | 1.28 | 2.87 | 1.68 | 3.91 | 2.20 | 5.54 | 2.89 | 7.82 | 3.63 |
| 25 | 33.4 | 1.65 | 1.30 | 2.77 | 2.09 | 3.38 | 2.50 | 4.55 | 3.24 | 6.35 | 4.24 | 9.09 | 5.45 |
| 40 | 48.3 | 1.65 | 1.91 | 2.77 | 3.11 | 3.68 | 4.05 | 5.08 | 5.41 | 7.14 | 7.25 | 10.16 | 9.54 |
| 50 | 60.3 | 1.65 | 2.40 | 2.77 | 3.93 | 3.91 | 5.44 | 5.54 | 7.48 | 8.74 | 11.1 | 11.07 | 13.44 |
| 100 | 114.3 | 2.11 | 5.84 | 3.05 | 8.36 | 6.02 | 16.07 | 8.56 | 22.3 | 13.49 | 33.54 | 17.12 | 41.03 |
| 200 | 219.1 | 2.77 | 14.79 | 3.76 | 19.96 | 8.18 | 42.6 | 12.7 | 64.6 | 23.0 | 111.2 | 22.23 | 107.8 |
| 300 | 323.9 | 3.96 | 31.36 | 4.57 | 36.07 | 12.70 | 97.5 | 17.48 | 131.0 | 30.23 | 238.76 | 35.56 | 282.79 |
| 600 | 609.6 | 5.54 | 82.47 | 6.35 | 94.45 | 17.48 | 255.41 | 30.96 | 442.08 | 59.54 | 808.22 | – | – |
Thickness Chart of SS 304 Seamless Tubing
The chart assists you in determining the ideal wall thickness for your SS Seamless 304 Tube, ensuring proper pressure handling and compatibility with fittings or systems.
| Sizes | SCH 10 304 Grade Stainless Steel Pipe | O.D | |
| DIA | |||
| Inch | DN | Thickness | Millimetre (mm) |
| 1 Inch | DN 25 | 2.77 | 33.4 |
| 2 Inch | DN 50 | 2.77 | 60.3 |
| 3 Inch | DN 80 | 3.05 | 88.9 |
| 4 Inch | DN 100 | 3.05 | 114.3 |
| 5 Inch | DN 125 | 3.43 | 141.3 |
| 6 Inch | DN 150 | 3.43 | 168.3 |
| 8 Inch | DN 200 | 3.76 | 219.1 |
| 10 Inch | DN 250 | 4.19 | 273.1 |
| 11/2 Inch | DN 40 | 2.77 | 48.3 |
| 11/4 Inch | DN 32 | 2.77 | 24.2 |
| 12 Inch | DN 300 | 4.57 | 323.9 |
| 14 Inch | DN 350 | 6.35 | 355.6 |
| 16 Inch | DN 400 | 6.35 | 406.4 |
| 18 Inch | DN 450 | 6.35 | 457.2 |
| 21/2 Inch | DN 65 | 3.05 | 73 |
| 22 Inch | DN 550 | 6.35 | 558.8 |
| 24 Inch | DN 600 | 6.35 | 609.6 |
| 34 Inch | DN 850 | 7.92 | 863.6 |
| 31/2 Inch | DN 90 | 3.05 | 101.6 |
| 36 Inch | DN 900 | 7.92 | 914.4 |
SS Seamless 304 Tube Manufacturing Process
We manufacture SS seamless 304 tubes with precision techniques that ensure corrosion resistance, strength, and dimensional accuracy.
- Solid 304 stainless steel billets are used as raw materials.
- Hot extrusion which creates the initial seamless shape.
- Cold drawing is done to improve dimensions and surface smoothness.
- Solution annealing improves mechanical properties.
- Pickling and passivation reduce scale and increase corrosion resistance.
- Eddy current and ultrasonic testing ensure no internal flaws.
- Dimensional and surface inspection adhere to ASTM A213 standards.
- The final tubes are cut, polished, and traceably marked.
SS Seamless 304 Tube Packaging & Delivery
We prioritize safe handling and timely shipment. Each SS Seamless 304 Tube is securely packed in wooden boxes or bundled for export. End caps are used to protect the tube from damage, and plastic wrapping or shrink film helps to keep moisture out. Each bundle is clearly labeled with the grade, size, and heat number. Tubes are loaded using safe handling techniques to prevent transit damage. We offer quick dispatches throughout India and global delivery.
SS Seamless 304 Tube Testing & Certifications
All SS Seamless 304 Tubes are tested to ensure safety, strength, and compliance. Each batch is hydrotested for pressure resistance and PMI tested to determine material grade. We use ultrasonic and eddy current testing to detect internal flaws, as well as IGC testing to determine corrosion resistance. Third-party inspections are performed upon request by agencies such as TUV, BV, and SGS. Our tubes are certified under EN 10204 3.1/3.2, meet ASTM standards. They have traceable markings, including heat numbers. We also meet NACE MR0175, ISO, and PED standards as needed.
Why Choose Neeka Tubes for SS Seamless 304 Tube?
Neeka Tubes is a trusted SS Seamless 304 Tube supplier, offering high-quality products to industries worldwide. We use certified ASTM A213 / A269 raw materials and maintain stringent quality control to ensure that each tube meets application specifications. We can meet the needs of both small and large projects by providing quick order processing, bulk stock availability, and competitive SS 304 tube prices. As a 304 stainless steel seamless tube manufacturer, we provide custom sizes, finishes, and complete test reports.
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Industrial Application of SS 304 Seamless Tubes
Frequently Asked Questions (FAQs)
Is SS Seamless 304 Tube suitable for high-temperature use?
Yes. It handles high temperatures well due to its heat-resistant composition.
How is a seamless 304 tube different from a welded one?
A seamless 304 tube has no welds and offers better strength and purity.
Which standards apply to SS Seamless 304 Tubes?
Common standards include ASTM A213, A312, and DIN EN 10216-5.
What is the average price of SS Seamless 304 Tube per kg?
Prices vary by size and market rate. Contact us for the latest SS 304 tube price in India.
How long does delivery take for SS Seamless 304 Tubes?
We offer quick dispatch. Delivery times depend on location and quantity.
