A671 CF70

ASTM A671 CF70 EFW Pipes are fabricated from carbon steel with outstanding strength and ductility. With sizes ranging from 16 inches to 64 inches (405 mm to 1625 mm) in outer diameter and wall thickness options from 5 mm to 250 mm, they are available in various schedules, including SCH 40, SCH 80, SCH 160, and XXS. These pipes are manufactured using advanced techniques such as heat treatment, stress relieving, and normalization, depending on the class and customer requirements. The seamless welding process ensures high integrity, while rigorous radiographic and pressure tests confirm their durability.

ASTM A671 CF70 pipes offer exceptional chemical stability with controlled percentages of carbon, manganese, and silicon, ensuring resistance to low-temperature cracking and corrosion. The mechanical properties include a minimum yield strength of 260 MPa and tensile strength ranging from 485 MPa to 620 MPa, along with excellent elongation properties of 21%, making them suitable for demanding operational conditions.

These pipes are widely used in applications requiring exceptional toughness and performance at sub-zero temperatures. They are extensively employed in oil refineries, petrochemical industries, power plants, boilers, and marine projects. Additionally, their high weldability and formability make them a preferred choice for fluid and gas transmission, liquid petroleum handling, and structural applications in harsh environments.

The ASTM A671 specification includes various grades and class designations. The CF70 grade is particularly noted for its excellent low-temperature toughness, while classes such as Class 12, Class 22, and Class 32 offer flexibility based on heat treatment and testing requirements. For instance, Class 22 undergoes stress-relief heat treatment and radiography, while Class 32 is normalized for enhanced strength and tested for pressure stability.

With a commitment to providing superior-quality ASTM A671 Pipes, Kwality Steelage Pvt Ltd ensures fast delivery, customized dimensions, and industry-standard packaging for secure transportation. Our global presence and expertise in supplying EFW pipes make us the preferred partner for industries in the Middle East, Europe, Asia, North America, and beyond. Choose Kwality Steelage Pvt Ltd for reliable, cost-effective, and performance-driven piping solutions.