Harsh Metalloys, located in Mumbai, India, stands out as a leading manufacturer and supplier of top-notch Stainless Steel 304H Bars. Designed to excel in high-temperature settings, these 304H bars are commonly used in applications that require exceptional strength and thermal stability. With a higher carbon content compared to standard 304, they provide enhanced creep resistance and durability. Harsh Metalloys guarantees that each bar adheres to international standards like ASTM and ASME, ensuring consistent quality and performance. Our state-of-the-art production capabilities, along with a dedication to timely delivery and customer satisfaction, have made us a reliable name in stainless steel supply both in India and internationally.
Stainless Steel 304H Bars are high-carbon austenitic stainless steel products celebrated for their remarkable high-temperature strength and resistance to corrosion. Their typical composition features Chromium (18–20%), Nickel (8–11%), Carbon (0.04–0.10%), Manganese (≤2%), Silicon (≤1%), Phosphorus (≤0.045%), and Sulfur (≤0.03%). In terms of mechanical properties, they boast a tensile strength of at least 515 MPa, yield strength of at least 205 MPa, elongation of at least 40%, and a Brinell hardness of no more than 201 HB. These bars maintain their mechanical integrity even when exposed to high temperatures for extended periods, making them perfect for structural and pressure-bearing applications in extreme conditions.
| 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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we ensures premium quality stainless steel 304H bar through rigorous testing and certification programs. Our tapes undergo mechanical, chemical and non-destructive testing to meet international standards. Certified in ISO compliant material testing reports (MTRs), each material provides reliability, durability and performance for a variety of industrial applications
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.
Stainless Steel 304H Bars are a go-to choice in industries that demand high-temperature resistance and robust mechanical strength. You’ll often find them in applications like boilers, heat exchangers, pressure vessels, superheaters, and various components in power plants and refineries. Their impressive creep strength makes them ideal for high-temperature operations in petrochemical and thermal processing sectors. Plus, they’re commonly used in furnace parts, chemical processing facilities, and high-pressure piping systems. With their outstanding weldability and resistance to corrosion, 304H bars are also a reliable option for construction and fabrication projects that need to withstand thermal stress and harsh environments.
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