ASTM A / AM – 16 Standard Specification for General Requirements for Alloy and Stainless Steel Pipe. This specification(Footnote 2). This standard is issued under the fixed designation A/AM; the number immediately specification, shall apply to the ASTM product specifications. Tolerances acc. ASTM A (welded and seamless pipes). OD mm. Tol. OD. ( mm). t/m. + > t/m. + > t/ m.

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Such requirements to be considered include, but are not limited to, the following: There shall be no variation under the asttm wall asym. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. This standard does not purport to address all of the safety concerns, if any, associated with its use.

The inch-pound units apply unless the “M” designation SI of the product specification is specified in the order. Flattening Test Requirements Cleaning shall be performed in accordance with a written procedure that has been shown to be effective.

ASTM Desig- nation 3. All required tests and inspection shall be made at the a99 of manufacture prior to shipment, unless otherwise specied, and shall be conducted so as not to interfere unnecessarily with operation of the works. During the rst step, which is a test for ductility, no cracks or breaks on the inside, outside, or end surfaces, except as provided for in The purchaser must certify that all requirements of the specication have been completed before the removal of the letter that is, X, Y, or Z.

Certied Test Report Disposition of rejected pipe shall be a matter of agreement between the manufacturer and the purchaser. Rejected lots may be screened and resubmitted for visual and dimensional aetm.


Marking shall begin approximately 12 in. Notches shall be placed on both the OD and X999 surfaces.

This standard does not purport to address all of the safety concerns, if any, associated with its use. The sensitivity of this test decreases with thickness over 0. The methods used for cleaning and preparing the surfaces for examination shall not be detrimental to the base metal or the surface nish.

ASTM A for Alloy and Stainless Steel Pipe

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Individual lengths that do not conform to the test requirements may be resubmitted for test provided the reason for nonconformance is established and the nonconforming portion removed.

Within the text, the SI units are shown in brackets. The area producing the signal may be reexamined. Nonconformance will be cause for the rejection of the lot. The tolerances on outside diameter include ovality except as provided for in Current News Archive Standard Technically.

Permissible Variation in Outside Diameter Surface imperfections such as handling marks, straightening marks, light mandrel and die marks, shallow pits, and scale pattern will not be considered injurious if the imperfections are removable within the tolerances specied for wall thickness or 0. The absence of any inspection requirements in the specication shall not relieve the contractor of the responsibility for ensuring that all products or supplies submitted to the government for acceptable comply with all requirements of the contract.

The minimum wall thickness on inspection is shown in Table X1. Packaging, Marking, and Loading The length of pipe atsm cannot be tested shall be determined by the manufacturer and, when specied a999 the purchase order, reported to the purchaser.

Each length of repaired pipe shall x999 nondestructively tested as required by the product specication. Permissible Variations in Inside Diameter The manufacturer may reheat treat the pipe, but not more than twice, except with the approval of the purchaser. For metal-arc welded pipe with lengths shorter than 10 ft [3.


ASTM A999/A999M – 18

Unless otherwise specied, pipe of NPS 4 and smaller may be weighed in convenient lots; pipe in sizes larger than NPS 4 shall be weighed separately. Title of Specication ASTM Designation3 are not exact equivalents; therefore each system must be used independently of the other. A lot shall be all material poured from one heat. When using small asm subsize specimens, the largest one possible shall asfm used.

Work Item s – proposed revisions of this standard. The values stated in either inch-pound units or SI units are to be regarded separately as standard.

A Maximum Curvature in any 3 ft, in. This letter may be removed after completion of all requirements in accordance with the specication.

ASTM A999 for Alloy and Stainless Steel Pipe

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. For welded pipe, the test pressure shall be held for a time sufficient to permit the entire length of the welded seam to be inspected.

Unless specically called aatm by the purchaser, the selection of the nondestructive electric test shall be at the option of the manufacturer. Permissible Variation in Weight for Seamless Pipe 8. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Permissible Variations in Wall Thickness 9.

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