One of the top producers and suppliers of high-performance stainless steel 304H pipes designed for high-temperature and high-pressure applications is Vinit Stainless, which has its headquarters in Chennai, India. A high-carbon version of the 304 grade, these pipes are made to be stronger and more resistant to creep at higher temperatures. Vinit Stainless makes sure every 304H pipe satisfies project requirements and international standards by using sophisticated manufacturing techniques and stringent quality control. Our SS 304H pipes are extensively utilised in refineries, boilers, heat exchangers, and power plants, offering a dependable and long-lasting piping solution for industrial settings and thermal processing systems.
In comparison to regular 304 and 304L grades, stainless steel 304H pipes have a higher carbon content (0.04–0.10%) and are made up of chromium (18–20%) and nickel (8–11%). The increased carbon improves creep resistance and strength at high temperatures. These pipes usually have an elongation of about 40%, a yield strength of about 240 MPa, and a tensile strength of about 585 MPa. Their exceptional toughness and thermal stability are guaranteed by their austenitic structure. For use in welded parts and structural systems subjected to extended high temperatures in power generation and industrial processing facilities, SS 304H pipes are perfect.
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Dimensions |
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ASTM, ASME and API |
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Standard |
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ASTM A312 / ASME SA312 |
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Size |
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1/8″NB TO 30″NB IN |
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Specialized in |
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Large Diameter Size |
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Schedule |
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SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
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Form |
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Round, Square, Rectangular, Hydraulic Etc |
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Type |
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Seamless / ERW / Welded / Fabricated / LSAW Pipes |
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Length |
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Single Random, Double Random & Cut Length. |
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End |
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Plain End, Beveled End, Threaded |
| Grade | 304H | |
|---|---|---|
| min | max | |
| C | – | 0.08 |
| Mn | – | 2.0 |
| Si | – | 0.75 |
| P | – | 0.045 |
| S | – | 0.03 |
| Cr | 16.0 | 18.0 |
| Mo | 2.0 | 3.0 |
| Ni | 10.0 | 14.0 |
| N | – | 0.10 |
| Grade | 304H | |
|---|---|---|
| Tensile Strength (MPa) min | 515 | |
| Yield Strength 0.2% Proof (MPa) min | 205 | |
| Elongation (% in 50mm) min | 40 | |
| Hardness | Rockwell B (HR B) max | 95 |
| Rockwell B (HR B) max | 217 | |
Contact us to get a quick quote for your requirement.
Stainless 304H square pipes are high-strength, corrosion-resistant tubes with a square cross-section. They are used in structural and architectural applications, offering durability and reliability in various industrial and commercial environments.
SS 304H seamless pipes are high-strength, corrosion-resistant tubes with no welded seams. Ideal for high-temperature and high-pressure applications, they offer durability and reliability in industries such as petrochemical and power generation.
Stainless Steel 304H ERW (Electric Resistance Welded) pipes are high-strength tubes produced by welding, offering excellent corrosion resistance and durability. They are used in various industrial applications requiring reliable performance.
SS 304H LSAW (Longitudinal Submerged Arc Welded) pipes are large-diameter, high-strength tubes with excellent corrosion resistance, used in heavy-duty applications like oil and gas pipelines and infrastructure projects.
Stainless Steel 304H round pipes are durable, high-strength tubes with a circular cross-section. They offer excellent corrosion resistance and are used in various applications, including construction, industrial processes, and infrastructure projects.
Stainless Steel 304H welded pipes are high-strength, corrosion-resistant tubes created by welding stainless steel strips. They are used in high-temperature and high-pressure applications, offering durability and reliability across various industries.
In high-temperature settings like power plants, refineries, chemical processing plants, and thermal fluid systems, stainless steel 304H pipes are widely utilised. They are perfect for applications requiring high mechanical strength and oxidation resistance, such as boiler tubes, heat exchangers, superheaters, and pressure vessels. Because of its higher carbon content, 304H performs better under extended heat stress, which makes it appropriate for load-bearing components and structural piping in environments with high heat. In industrial furnaces, steam pipelines and gearbox lines for gas and oil, where dependability and durability are crucial in the face of high pressure and heat, SS 304H pipes are also recommended.
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