Nov 26, 2025 Leave a message

Introduction to ASTM A333 Grade 1 Round Straight Seam Steel Pipe

What is ASTM A333 Grade 1 material?

ASTM A333 Grade 1 is a type of carbon steel tubing designed for cryogenic applications. It is available in both seamless and welded forms. Its minimum yield strength is 205 MPa (30,000 psi), and its minimum tensile strength is 380 MPa (55,000 psi).

What is the equivalent material for ASTM A333?

The primary equivalent material for ASTM A333 Grade 1 is EN 10216-4 P265NL, which is the European standard for the same cryogenic applications.

What is the difference between A333 and A106 steel tubing?

The main difference lies in their applications: A333 steel is suitable for cryogenic environments, while A106 steel is suitable for cryogenic environments.

What is the material of ASTM A333 steel tubing?

ASTM A333 steel tubing is made of cryogenic carbon steel or alloy steel and is designed for cryogenic environments. The specific composition varies depending on the grade, but the common Grade 6 steel is a carbon steel with a maximum carbon content of 0.30%, a manganese content of 0.29-1.06%, a minimum silicon content of 0.10%, and a maximum phosphorus and sulfur content of 0.025%.

What are the application areas of ASTM A333 Grade 1 steel pipe?

ASTM A333 Grade 1 steel pipe is used in industries requiring cryogenic environments, such as oil and gas, petrochemical and chemical processing, and power generation. It is also used in cryogenic applications, including liquefied natural gas (LNG) and liquid nitrogen systems, as well as infrastructure and refrigeration projects in cold climates.

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