ASTM A691 GR CMS-75

The ASTM A691 GR CMS-75 pipes are designed to meet strict technical specifications. They come in outer diameters ranging from 16 inches (405 mm) to over 60 inches (1524 mm) and wall thicknesses up to 3 inches (75 mm), including popular schedules like SCH40, SCH80, and SCH160. These pipes undergo advanced heat treatments such as stress relieving, normalizing, and quenching-tempering to achieve superior mechanical properties. With chromium and molybdenum as key alloying elements, these pipes exhibit enhanced corrosion resistance and strength at elevated temperatures, making them suitable for critical applications.

Each pipe undergoes rigorous testing to ensure compliance with ASTM A691 standards. The chemical composition includes carbon content up to 0.15%, chromium ranging from 1.0% to 9.0%, and molybdenum between 0.45% and 1.1%. Mechanical properties include a tensile strength of 515–690 MPa, a minimum yield strength of 310 MPa, and elongation of up to 22%. These attributes make the pipes versatile for high-stress environments such as power plants, refineries, and offshore platforms. Welding processes like longitudinal submerged arc welding (LSAW) and helically submerged arc welding (HSAW) ensure smooth and uniform joints for maximum structural integrity.

The ASTM A691 Alloy Steel Pipes are widely used across industries for their exceptional strength, corrosion resistance, and adaptability. In power plants, they serve as boiler pipes and pressure vessels, while in the petrochemical sector, they handle corrosive fluids efficiently. The oil and gas industry relies on these pipes for transporting fluids under extreme pressure, and the construction sector uses them for heavy-duty frameworks and bridges. Available in various lengths up to 14 meters with customizable end finishes, these pipes are a trusted choice for global projects.

Choose Solitaire Steel & Engineering LLP for high-quality ASTM A691 GR CMS-75 pipes. As a leader in the alloy steel segment, we deliver competitive pricing, fast delivery, and tailored solutions to meet your industrial requirements. Contact us today to experience precision engineering and unparalleled service excellence!