Stainless Steel 304H Round Bar

Vision Alloys is a trusted supplier, stockist, and exporter of Stainless Steel 304H round bars, delivering high-quality products to industries that require strength, heat resistance, and corrosion protection. This high-carbon version of stainless steel 304 is widely used in heat exchanger tubes, boiler tubes, pressure vessels, and other equipment that operates at elevated temperatures. Thanks to its enhanced carbon content, 304h stainless steel round bars maintain their strength even in environments where standard 304 grades may lose performance.

304H round bars are produced according to international standards like ASTM A276, ASTM A479, ASME SA276, and ASME SA479, and they are labeled with the material code UNS S304.. The alloy typically contains 18–20% chromium, 8–10.5% nickel, and a higher carbon content of 0.04–0.10% compared to 304. This mixture makes the material stronger at high temperatures and helps it resist rust and scaling when used at temperatures up to 870°C. The material is also non-magnetic in the annealed condition and weldable using conventional techniques.

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The mechanical strength of stainless steel 304H round bars is one of its key benefits. They offer a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of 35%, along with outstanding durability in both high-temperature and mildly corrosive environments. This combination of strength and corrosion resistance makes SS 304H bars ideal for petrochemical processing, heat treatment equipment, and power generation applications. The high carbon content allows them to withstand long-term exposure to high heat without significant loss of mechanical properties.

SS 304H round bars are available in a variety of diameters ranging from 3 mm to 800 mm and in custom lengths to suit project requirements. They can be supplied in hot-rolled, cold-drawn, bright, or polished finishes depending on the intended application. Options include solid, hollow, and threaded bar types for different industrial and structural uses. Custom machining and tolerance options are available to ensure a precise fit for any high-temperature or heavy-load installation.

Vision Alloys ensures every SS 304H round bar undergoes strict quality testing, including mechanical, chemical, and dimensional checks, to meet ASTM, ASME, and DIN standards. With a strong supply network and ready stock, they can deliver to both domestic and international markets quickly and efficiently. Their commitment to consistent quality, competitive pricing, and timely delivery makes them a preferred choice for clients looking for UNS S30409 stainless steel round bars for high-performance applications around the world.

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SS 304H Round Bar Specifications

Thermal Properties of Stainless Steel 304H Round Bar
Heat Treatment of Stainless Steel 304H Round Bar

Applications: Stainless Steel 304H round bars find applications in a variety of industries, including

1. Chemical Processing: Used in reactors, pipelines, and storage tanks for its corrosion resistance.

2. Pharmaceuticals: Preferred for its hygienic properties in the manufacturing of pharmaceutical equipment.

3. Food and Beverage: Used for processing and storage of food products due to its non-reactive nature.

4. High-Temperature Applications: Suitable for applications involving extreme heat and mechanical stress, such as in power generation.

Equivalent Grades Of Stainless Steel 304H Round Bar
SS 304H Round Bar Chemical Composition
Mechanical Properties of SS 304H Round Bars

Types of Stainless Steel 304H Round Bar