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Home > Stainless Steel Tubing > Stainless Steel 304H Tubing
Ojas Pipes and Tubes, a well-respected manufacturer and supplier based in Kolkata, India, specializes in high-quality Stainless Steel 304H Tubing, designed for outstanding performance in both high-temperature and high-pressure settings. This high-carbon variant of 304 is crafted to provide enhanced strength along with excellent resistance to oxidation and corrosion. Ojas employs cutting-edge manufacturing techniques and complies with international quality standards to create tubing that meets the rigorous demands of industries like power generation, oil & gas, and chemical processing. With a strong commitment to precision, reliability, and timely delivery, Ojas Pipes and Tubes has earned its reputation as a trusted provider of stainless steel solutions.
Stainless Steel 304H Tubing is composed of 18–20% Chromium and 8–11% Nickel, featuring a higher carbon content that ranges from 0.04% to 0.10%, which boosts its strength at elevated temperatures. It also contains trace amounts of Manganese, Silicon, Phosphorus, Sulfur, and Iron as the primary element. This tubing boasts a tensile strength of about 585 MPa, a yield strength of roughly 240 MPa, and an elongation of 40%. Such a composition guarantees excellent oxidation resistance, good weldability, and improved creep resistance, making 304H an ideal choice for high-temperature structural and pressure applications.
Outside Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
SS 304H Pipe Thickness Range: 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
W.T: SCH5S, SCH10S, SCH40S, SCH80S, SCH160S, etc. (0.5-12mm) Or non-regular size to be tailored as required
Type: SS 304H Seamless Pipes | SS 304H ERW Pipes | SS 304H Welded Pipes | SS 304H Fabricated Pipes | SS 304H CDW Tubes, LSAW Pipes / Seam-welded / Redrawn
Form: SS 304H Round Pipes/ Tubes, SS 304H Square Pipes/ Tubes, SS 304H Rectangular Pipe/ Tubes, SS 304H Coiled Tubes, SS 304H “U” Shape, SS 304H Pan Cake Coils, SS 304H Hydraulic Tubes
Length: Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded
End Protection: Plastic Caps | Outside Finish: 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials: Sizes and Specifications other than above can be manufactured on request
ASTM A312 304H: Seamless and straight-seam welded austenitic pipe intended for high temperature and general corrosive service. Filler metal not permitted during welding.
ASTM A358 304H: Electric fusion welded austenitic pipe for corrosive and/or high temperature service. Typically only pipe up to 8 inch is produced to this specification. Addition of filler metal is permitted during welding.
ASTM A790 304H: Seamless and straight-seam welded ferritic/austenitic (duplex) pipe intended for general corrosive service, with a particular emphasis on resistance to stress corrosion cracking.
ASTM A409 304H: Straight-seam or spiral-seam electric fusion welded large diameter austenitic light-wall pipe in sizes 14” to 30” with walls Sch5S and Sch 10S for corrosive and/or high
ASTM A376 304H: Seamless austenitic pipe for high temperature applications.
ASTM A813 304H: Single-seam, single- or double- welded austenitic pipe for high temperature and general corrosive applications.
ASTM A814 304H: Cold-worked welded austenitic pipe for high temperature and general corrosive service.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
|---|---|---|---|---|---|---|---|---|---|
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 304H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
By choosing Stainless Steel 304H Tubing from Ojas Pipes and Tubes, you are assured of superior quality and durability. These tubes provide outstanding corrosion resistance and strength, making them ideal for a wide range of industrial applications. Our dedication to excellent service and dependable delivery ensures customer satisfaction every time. With our expertise in stainless steel products, we deliver top-tier solutions customized to meet your specific requirements.
Ojas Pipes and Tubes, a leading supplier of Stainless Steel 304H Tubing in Kolkata, India, provides a wide selection of premium pipes and tubes for diverse industrial applications. With a vast inventory and a strong focus on delivering outstanding service, they are the preferred choice for stainless steel products in the region.
At Ojas Pipes and Tubes, we provide custom sizes of Stainless Steel 304H Tubing to meet your exact specifications. Our dedicated team is here to offer tailored solutions for all your piping and tubing needs. For more information, feel free to reach out to us at sales@brydonpipesandtubes.co.uk.
Stainless Steel 304H Tubing finds extensive use in high-temperature and high-pressure applications across a variety of industries. It’s perfect for heat exchangers, boilers, superheaters, and pressure vessels in power plants and refineries. Additionally, this tubing is employed in the chemical and petrochemical industries for transporting hot fluids and gases. Thanks to its high carbon content and superior creep strength, 304H tubing excels in structural components that face thermal stress. Other applications include furnace components, piping systems in the oil and gas sector, and industrial processing equipment.
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