ASTM A519 Seamless Pipe Manufacturer

ASTM A519 is a standard specification for seamless carbon and alloy steel mechanical tubing, commonly referred to as astm a519 pipe, used in applications requiring high strength and precision. used in applications requiring high strength and precision. These pipes are manufactured through hot or cold finishing processes in strict compliance with astm a519 standard, ensuring excellent dimensional accuracy and surface quality.

ASTM A519 covers various grades, including carbon steel (1020, 1025) and alloy steel (4130, 4140), tailored for specific mechanical properties. They are widely used in machinery, automotive, and aerospace industries for components like shafts, cylinders, and structural parts—with astm a519 tube serving as the versatile base option and a519 cd seamless tube excelling in applications demanding tight tolerances. The standard ensures superior strength, toughness, and machinability, making these pipes ideal for high-stress applications.

Types of ASTM A519 Standard Seamless Steel Pipe

Standard and Material Grades of ASTM A519 pipes

ASTM A519 is a specification for seamless carbon and alloy steel mechanical tubing, available in various grades to meet different application requirements. The standard includes low-carbon grades (e.g., MT 1010, MT 1015), high-carbon grades (e.g., 1020, 1035), alloy grades (e.g., 4130, 4140), and resulfurized or rephosphorized grades (e.g., 1118, 1137) .

Chemical Composition and Mechanical Properties of ASTM A519 pipes

The chemical composition varies by grade. For example, Grade 4130 contains Carbon (0.28–0.33%), Manganese (0.40–0.60%), Silicon (0.15–0.35%), Chromium (0.80–1.10%), and Molybdenum (0.15–0.25%) . Its mechanical properties include a tensile strength of 560–770 MPa, yield strength of 460–650 MPa, elongation of 18–25%, and hardness of 140–220 HBW.

Advantages of ASTM A333 Seamless Steel Pipe

ASTM A333 seamless steel pipes are designed for low-temperature applications, offering exceptional toughness and reliability. They maintain strength and durability even at extremely low temperatures, a trait that pairs with a519 pipe’s mechanical performance to support diverse operating conditions, making them ideal for harsh environments. The pipes exhibit excellent impact toughness, reducing the risk of fractures and ensuring safety in critical applications, while a519 mechanical tubing delivers precision-engineered reliability for complementary high-stress components. Additionally, they are corrosion-resistant, which extends their service life and reduces maintenance costs.

Applications of ASTM A333 Seamless Steel Pipe

ASTM A333 seamless steel pipes are widely used in industries requiring performance in low-temperature conditions. They are essential in the oil and gas industry for transmission pipelines and process piping, particularly in arctic regions—where a519 seamless tubing provides reliable mechanical support for low-temperature system structures and valves. In the petrochemical sector, they are used for cryogenic storage and transportation of liquefied gases like ethylene and ammonia, while a519 steel tube excels in high-stress auxiliary equipment (e.g., pump shafts, pressure vessel connectors) within the same cryogenic workflows. These pipes are also crucial in power generation, especially in thermal and nuclear power plants, where they manage low-temperature condensates and cooling systems.

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ASTM A519 Standard Seamless Steel Pipe Supplier

Types of ASTM A519 Standard Seamless Steel Pipe

Standard and Material Grades of ASTM A519 pipes

Chemical Composition and Mechanical Properties of ASTM A519 pipes

Advantages of ASTM A333 Seamless Steel Pipe

Applications of ASTM A333 Seamless Steel Pipe