Harsh Metalloys, based in Mumbai, India, stands out as a top manufacturer and supplier of high-performance Stainless Steel 304H Pipes. These pipes are specifically designed for high-temperature settings and are crafted from a high-carbon variant of 304 stainless steel, which offers remarkable strength and oxidation resistance. Built to comply with global standards like ASTM A312, they find extensive applications in sectors such as power generation, oil and gas, petrochemicals, and heat exchangers. Harsh Metalloys is committed to delivering premium quality, precise dimensions, and timely delivery, providing Stainless Steel 304H pipes in a variety of sizes, wall thicknesses, and finishes to meet the demanding needs of various industries.
Stainless Steel 304H Pipes are made up of Chromium (18–20%), Nickel (8–12%), Carbon (0.04–0.10%), Manganese (≤2%), Silicon (≤1%), Phosphorus (≤0.045%), and Sulfur (≤0.03%). The higher carbon content boosts their strength at elevated temperatures. These pipes showcase a tensile strength ranging from 515 to 620 MPa, a yield strength of about 205 to 275 MPa, an elongation of nearly 40%, and a hardness of up to 95 HRB. This alloy is known for its excellent resistance to oxidation, structural stability, and mechanical strength in high-temperature applications, making it a go-to choice for critical thermal and pressure-based systems.
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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 a go-to choice for high-temperature and high-pressure settings, like those found in boilers, heat exchangers, condensers, and superheaters at power plants and refineries. Thanks to their superior strength and thermal stability, they’re perfect for use in petrochemical and chemical processing equipment. You’ll also find them in nuclear power plants, oil and gas pipelines, and various components of furnaces and reactors. These pipes are designed to maintain structural integrity and resist scaling and corrosion, even at elevated temperatures, making them a dependable option for industries that prioritize durability, performance, and safety in tough operating conditions.
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