1.1 This specification covers several grades of carbon and alloy steel seamless mechanical tubing. The grades are listed in Tables 1-3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the grade, the condition of the components, and the intended service.
1.2 This specification covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3⁄4 in. [325 mm] outside diameter for round tubes with wall thicknesses as required.
1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser: round, square, rectangular, and special sections.
1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets or parentheses. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order. In this specification hard or rationalized conversions apply to diameter, lengths and tensile properties. Soft conversion applies to other SI measurements.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM A519/A519M-17 Referenced Document
ASTM A1040 Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Carbon, Low-Alloy, and Alloy Steels*, 2022-09-01 Update
ASTM A1058 Standard Test Methods for Mechanical Testing of Steel Products—Metric*, 2024-04-21 Update
ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
ASTM A519/A519M-17 history
2023ASTM A519/A519M-23 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
2017ASTM A519/A519M-17 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
2006ASTM A519-06(2012) Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
2006ASTM A519-06 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
2003ASTM A519-03 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
1996ASTM A519-96(2001) Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
1996ASTM A519-96 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing