A358 GR 321H

A358 GR 321H pipes come in a size range of 6 inches to 60 inches nominal bore (NB) with wall thicknesses compatible with schedules SCH 10, SCH 40, SCH 80, and SCH XXS. These pipes feature high carbon content, which boosts their strength and resistance to stress at elevated temperatures. With a tensile strength of 515 MPa and a minimum yield strength of 205 MPa, they are ideal for demanding industrial use. Titanium stabilization minimizes carbide precipitation, making these pipes reliable for welded applications, even in high-temperature environments up to 870°C.

The material composition includes 17-19% chromium, 9-12% nickel, and a carefully balanced carbon content of up to 0.10%, which differentiates Grade 321H from standard Grade 321. These properties enable the pipes to exhibit enhanced oxidation resistance, thermal stability, and overall durability. The pipes are available with plain, beveled, or threaded ends and can be customized with various surface finishes, including pickling, polishing, or passivation. They are commonly used in heat exchangers, superheaters, pressure vessels, and exhaust systems.

Kwality Steelage Pvt. Ltd. ensures precise dimensional tolerances for A358 GR 321H pipes, with an outside diameter variation of ±1% and a wall thickness tolerance of +12.5%/-10%. All products undergo rigorous testing, including ultrasonic, hydrostatic, and radiographic examinations, to ensure compliance with global standards. With a strong international presence, the company caters to industries across Asia, Europe, the Middle East, and the Americas. Contact us today to learn more about A358 GR 321H Stainless Steel Pipes and find the perfect solution for your project needs.