A672 GR L65

The ASTM A672 Grade L65 pipes are known for their exceptional mechanical properties, including a minimum yield strength of 240 MPa and a tensile strength ranging from 450 to 585 MPa. These pipes can be manufactured in diameters starting from 16 inches and feature a wall thickness of up to 3 inches, offering flexibility for various industrial requirements. The chemical composition includes molybdenum for strength, along with carbon, manganese, and silicon, ensuring optimal performance under high-pressure conditions.

The heat treatment of these pipes depends on their class, with most classes (except 10, 11, 12, and 13) requiring furnace heat treatment for improved mechanical properties. Conventional welding techniques, including electric arc welding, can be employed, with preheating and post-weld heat treatment recommended to reduce residual stresses. These processes ensure a robust and leak-proof welding joint, crucial for high-pressure and high-temperature applications.

ASTM A672 Grade L65 EFW pipes are extensively used in industries like oil and gas, petrochemicals, power plants, boilers, and shipbuilding. They are available in various sizes, lengths, and wall thicknesses to meet specific project requirements. These pipes are offered in different shapes, including round, square, and rectangular, and can be coated with black paint, anti-corrosion oil, or varnish to enhance durability and resistance to environmental factors. Galvanization is another option to protect the pipes from atmospheric corrosion, further extending their service life.

These pipes offer numerous advantages, such as excellent dimensional accuracy, high strength, and resistance to rust, thermal stress, and chemicals. Their robust construction ensures minimal wear and tear, making them a cost-effective and reliable choice for long-term use. Available in standard lengths of 6 to 12 meters or customized as per client needs, these pipes come with options like beveled, threaded, or plain ends for easier integration into existing systems.