High-performance stainless steel 304H bars for industrial applications needing increased strength and heat resistance are the speciality of Vinit Stainless, a well-known manufacturer and supplier with headquarters in Chennai, India. A high-carbon version of 304 stainless steel, SS 304H is made especially for high-temperature settings where structural integrity is essential. Vinit Stainless manufactures 304H bars in a variety of sizes that satisfy industry requirements and global standards. The oil and gas, chemical and power generation industries all make extensive use of our bars. Our unwavering dedication to quality and dependability guarantees steady performance under trying circumstances.
In order to increase strength at high temperatures, stainless steel 304H bars have a higher carbon content (0.04–0.10%) than 304 or 304L, along with chromium (18–20%) and nickel (8–11%). These bars have an approximate elongation of 40%, a yield strength of 205 MPa, and a tensile strength of 515 MPa. Excellent toughness and oxidation resistance are provided by the austenitic structure. SS 304H bars are perfect for pressure-containing and high-temperature structural applications because they maintain their mechanical qualities and resistance to corrosion even after extended exposure to high temperatures.
| Stainless Steel 304H Round Bar Specification | ASTMA276 / A479, ASME SA276 / A479 |
|---|---|
| Dimensions | EN, DIN, JIS, ASTM. BS, ASME, AISI |
| Size | 14mm ~ 300mm |
| Thickness | 50 mm to 600 mm Long |
| Length | 2mm ~ 100 mm 1 to 6 Meters, Custom Cut Length |
| Form | Round, Square, Hexagonal, Rectangular |
| 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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Stainless Steel 304H Round Bars are ideal for high-temperature applications, available in diameters ranging from 6mm to 500mm. These bars provide excellent strength and durability, perfect for use in pressure vessels and industrial boilers.
Stainless Steel 304H Flat Bars offer enhanced heat resistance and are available in thicknesses from 3mm to 100mm, and widths from 12mm to 300mm. Suitable for construction, automotive, and industrial applications requiring high strength and thermal stability.
Stainless Steel 304H Square Bars provide excellent mechanical properties, available in sizes ranging from 6mm to 150mm. Ideal for use in structural and architectural applications where high strength and heat resistance are essential.
Stainless Steel 304H Rectangular Bars are used in construction and industrial applications, available in thicknesses from 3mm to 100mm, and widths from 10mm to 200mm. These bars offer superior durability and heat resistance for demanding environments.
Stainless Steel 304H Hexagonal Bars are perfect for use in fasteners and fittings, available in sizes from 6mm to 100mm across flats. They provide high strength and excellent resistance to high temperatures, making them ideal for industrial applications.
Stainless Steel 304H T Bars offer excellent structural support, available in sizes from 20mm to 100mm in width. These bars are suitable for construction and architectural applications, providing high strength and thermal stability.
Applications involving high mechanical loads and temperatures frequently use stainless steel 304H bars. These bars are used in heat exchangers, superheaters, boilers, and pressure vessels in industries like power plants, oil refineries, and chemical processing facilities. Under extended heat exposure, 304H’s higher carbon content keeps it strong and prevents deformation. In thermal processing systems, it is also utilised in structural and supporting elements. SS Because of their superior weldability and resistance to corrosion, 304H bars are a popular option for machinery that must withstand high temperatures and mechanical stress.
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