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ASTM A1005 Standard Specification

ASTM A1005 Standard Specification

ASTM A1005 / A1005M – 00(2010) Standard Specification for Steel Line Pipe, Black, Plain End, Longitudinal and Helical Seam, Double Submerged-Arc Welded


astm a135 standard ERW steel tube

ASTM A1005 Standard specification covers double submerged-arc welded, black, plain end steel pipes for use in the conveyance of fluids under pressure. The pipes shall be capable of being welded in the field. Skelp widths for helical seam pipe shall be neither less than 0.8 nor more than 3.0 times the pipe’s specified outside diameter. Skelp end welds shall not be permitted in finished pipe, except for helical seam pipe having its skelp end welds manufactured by double submerged-arc welding. For such pipes, skelp ends shall have been properly prepared for welding. The specimens shall undergo the following tests: tension test, guided bend test, Charpy V-notch test, and hydrostatic test. After hydrostatic test, nondestructive examinations by ultrasonic inspection shall be done.


The pipe is manufactured without a seam, making it a better pipe to carry gas. The black steel pipe is also used for fire sprinkler systems because it is more fire-resistant than galvanized pipe.

ASTM A1005 Standard is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.


1.1 This specification covers double submerged-arc welded, black, plain end steel pipe for use in the conveyance of fluids under pressure. Pipe in sizes NPS 16 and larger, as given in ASME B36.10, are included; pipe having other dimensions, in this size range, are permitted, provided such pipe complies with all other requirements of this specification.

1.2 It is intended that pipe be capable of being welded in the field when welding procedures in accordance with the requirements of the applicable pipeline construction code are used.

1.3 The values stated in either inch-pound units or in SI units are to be regarded separately as standard. The values in each system are not exact equivalents, therefore, each system is to be used independently of the other, without combining values in any way.

1.4 The following precautionary statement pertains to the test method portion, Section 14 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Referenced Documents

ASTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products

ASTM A450/A450M Specification for General Requirements for Carbon and Low Alloy Steel Tubes

ASTM A530/A530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe

ASTM A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

ASTM A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys

ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing Qualifications

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