Harsh Metalloys, located in Mumbai, India, stands out as a leading manufacturer and supplier of top-notch Stainless Steel 304H Tubing. This tubing is specifically crafted for high-temperature and high-pressure applications, featuring a high-carbon variant of 304 stainless steel that offers remarkable strength and outstanding oxidation resistance. Produced in line with international standards like ASTM A213 and ASTM A269, these tubes come in a variety of sizes, thicknesses, and finishes to meet a wide range of industrial requirements. Harsh Metalloys guarantees dependable performance, precise dimensions, and timely delivery, making its 304H tubing perfect for sectors such as petrochemical, power generation, and chemical processing.
When it comes to the composition and mechanical properties of Stainless Steel 304H Tubing, it consists of Chromium (18–20%), Nickel (8–12%), Carbon (0.04–0.10%), Manganese (≤2%), Silicon (≤1%), Phosphorus (≤0.045%), and Sulfur (≤0.03%). The increased carbon content boosts tensile and creep strength, particularly at higher temperatures. Typically, this tubing provides a tensile strength ranging from 515 to 620 MPa, yield strength between 205 and 275 MPa, elongation of about 40%, and hardness reaching up to 95 HRB. These mechanical characteristics make 304H tubing an excellent option for applications that demand long-lasting performance in high-temperature and corrosive settings.
| Alloy 304H Standards | Stainless Steel 304H |
|---|---|
| ASTM A213 Stainless Steel Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| ASTM A249 TP 304H Stainless Steel Welded Tube Size | 6.35 mm OD To 152 mm OD |
| ASTM A269 TP 304H Stainless Steel Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| ASME SA213 TP 304H Stainless Steel Tube wall thickness | 0.020″ –0.220″, (special wall thicknesses available) |
| SS 304H Length | Single Random, Double Random, Standard & Cut length Tube |
| UNS S30409 Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| ASTM A213 Gr. TP304H Form | ‘U’ bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Etc |
| ASTM A269 TP 304H Stainless Steel Type | Seamless, ERW, EFW, Welded, Fabricated Tube |
| ASTM A213 Stainless Steel End | Plain End, Beveled End, Treaded Tube |
| ASME SA213 SS 304H Marking | All 304h Stainless Steel Tube are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| ASME SA213TP 304H Stainless Steel Application | Oil Tube, Gas Tube, Fluid Tube, Boiler Tube, Heat exchanger Tube, |
| 304H SS Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Stainless Steel 304H Specialize in | Stainless Steel 304H Capillary Tube & Other Odd Size Alloy 304H Heat Exchanger & Condenser Tube |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304H | min. | 0.04 | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | – | ||
| 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 |
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We assures that all its Stainless Steel 304H Tubing is thoroughly tested for quality and performance. Mechanical properties, corrosion resistance, and dimensional accuracy of the tubing are tested. The following certificates are also provided: Material Test Reports (MTR), 3.1 certificates, and ISO compliance, ensuring industry standards and reliability.
These tubes offer superior corrosion resistance, ideal for high-pressure applications. Sizes typically range from 1/8″ to 24″ in diameter. They provide excellent durability and are used in industries requiring precise tolerances.
Known for its excellent corrosion resistance, this tubing is available in sizes from 1/8″ to 24″. It’s cost-effective for less critical applications and offers good strength and flexibility for various uses.
These tubes excel in corrosion resistance and thermal conductivity. Common sizes range from 1/2″ to 1-1/2″ in diameter, designed for efficient heat transfer in industrial applications.
Providing high corrosion resistance, these tubes are typically available in sizes from 1/16″ to 2″. They are crucial for precise instrumentation and control systems in various industries.
These corrosion-resistant tubes come in sizes typically from 1/2″ to 5″ in diameter. They are designed to withstand high temperatures and pressures in boiler systems.
Featuring high corrosion resistance, these U-shaped tubes are available in sizes from 1/2″ to 1-1/2″. They are commonly used in heat exchangers and condensers for efficient thermal management.
Known for its superior corrosion resistance, this tubing ranges from 3/8″ to 1-1/4″ in diameter. It’s used in condensers to efficiently transfer heat and condense steam into water.
These tubes offer excellent corrosion resistance and are available in sizes typically from 1/2″ to 1-1/2″. They are used in applications requiring enhanced heat transfer efficiency due to their extended surface area.
Stainless Steel 304H Tubing is a go-to choice for high-temperature applications in various industries, including oil and gas, power generation, heat exchangers, boilers, and petrochemicals. It’s particularly well-suited for steam lines, superheaters, and furnace tubes, where thermal stability and resistance to scaling are crucial. Thanks to its impressive mechanical strength and corrosion resistance, it’s also perfect for use in condensers, nuclear power plants, and chemical reactors. In both construction and marine settings, 304H tubing delivers strong and durable performance. With its ability to handle extreme conditions, this tubing plays a vital role in ensuring reliable operation in thermally demanding and corrosive environments.
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