Weston Stainless, a Midland, UK-based company, is a reliable supplier of stainless steel products of the highest quality, providing precision-engineered solutions for industrial use. Their Stainless Steel 321H Bars are high-carbon equivalents of SS 321, with higher strength and greater resistance to high-temperature conditions. They are supplied in a range of shapes, including round, square, hexagonal, and flat bars, providing versatility for diverse engineering requirements. Produced from an austenitic stainless steel alloy stabilized by titanium, SS 321H bars provide high oxidation and corrosion resistance, rendering them ideal for use in conditions demanding durability and stability in intense heat.
SS 321H Bars contain 17-19% chromium, 9-12% nickel, and an increased carbon level (0.04-0.10%) over SS 321 to ensure enhanced strength in high-temperature conditions. These bars contain a tensile strength of around 515 MPa, yield strength of 205 MPa, and an elongation of 40%. The hardness of these bars is around 95 HRB. In terms of physical properties, SS 321H possesses a density of 7.9 g/cm³, melting point of 1400°C, and thermal conductivity of 16.3 W/m-K at room temperature to provide high mechanical stability in the face of excessive stress.
| Standard | ASTM A276 / A479, ASME SA276 / A479 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti | SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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Stainless Steel 321H Bars find extensive applications in petrochemical, power generation, aerospace, and heat treatment equipment industries. Their high-temperature tensile strength and resistance to oxidation make them perfectly suitable for furnace parts, boiler tubes, heat exchangers, and exhaust systems. These bars are also used in chemical processing plants, pressure vessels, and refinery equipment where exposure to hostile environments and high temperatures is prevalent. Their higher mechanical stability and resistance to corrosion give them an edge in demanding industrial processes.
Designed for high-temperature applications, offering excellent oxidation resistance and mechanical strength. Ideal for use in aerospace, chemical processing, and high-temperature industrial components where durability and resistance to thermal degradation are crucial.
Superior strength and resistance to high temperatures and oxidation. Suitable for manufacturing structural components, heat exchangers, and exhaust systems, these bars are used in industries where high performance under extreme conditions is required.
High-stress, high-temperature environments. They are commonly used in aerospace, petrochemical, and power generation industries for components such as reactor vessels, furnace parts, and structural supports due to their excellent thermal stability and strength.
High resistance to thermal and oxidation damage, making them suitable for high-temperature applications like furnace components, chemical processing equipment, and structural supports in demanding environments.
High-temperature applications such as gas turbines, exhaust systems, and chemical processing equipment. Their resistance to carbide precipitation ensures durability under extreme conditions.
High-temperature and high-stress environments, offering excellent strength and resistance to oxidation. They are commonly used in structural applications, including supports and frames in the aerospace, chemical processing, and energy sectors.
Weston Stainless offers test certificates, such as Mill Test Certificates (MTC) to EN 10204 3.1 for international quality specifications. The bars are packed and secured in wood crates, plastic wrapping, or carton box to avoid physical damage during transit. Weston Stainless has a comprehensive logistics network in place, delivering the products efficiently on time as well as timely and reliable distribution worldwide to cater to urgent needs of industries.
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