Chanchai Stainless, a trusted supplier in Bangkok, Thailand, offers Stainless Steel 304H Pipes designed for high-temperature use. Grade 304H is a high-carbon version of 304 stainless steel that provides better strength in elevated temperatures. These pipes resist corrosion similarly to 304 while ensuring better creep resistance and toughness under thermal stress. Because they can handle prolonged exposure to heat, Stainless Steel 304H Pipes are commonly used in boilers, heat exchangers, and refinery systems. Chanchai Stainless focuses on top-quality production, making 304H Pipes a reliable option for industries that need high-temperature strength and durability.
Stainless Steel 304H pipes consist of chromium (18-20%), nickel (8-12%), and higher carbon content (0.04-0.10%). The added carbon enhances strength and creep resistance at high temperatures. Their average tensile strength is 515 MPa, with a yield strength around 205 MPa. They maintain a high elongation rate of 40%, which ensures toughness. The oxidation resistance is excellent at temperatures up to 870°C, providing good stability in continuous use. While corrosion resistance is similar to 304, 304H is better suited for high-temperature structural needs that require greater strength and creep resistance.
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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.
wE offers high quality stainless steel 304H pipe, rigorously tested to meet industry standards. Our pipelines undergo a broad spectrum of testing procedures, including chemical analysis, mechanical testing and pressure testing. Certificates of compliance and test certificates are issued to ensure the highest quality and efficiency of each batch delivered.
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.
Stainless Steel 304H pipes are mainly used in high-temperature settings like boilers, superheaters, and heat exchangers. Power plants incorporate them into steam piping systems. They are also found in refinery equipment, pressure vessels, and petrochemical facilities where thermal stability and strength are essential. Construction and architectural projects that need strength in varying temperatures take advantage of their capabilities. Stainless Steel 304H pipes are perfect for ongoing service in environments demanding creep resistance, strength, and oxidation protection at high temperatures, making them a reliable choice for demanding industrial applications.
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