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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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BoxColumbus, OH — Permissible Variations in Inside Diameter Permissible Variation in Outside Diameter One hole shall be drilled in the weld, if visible. With the text, the SI units are shown in brackets. Nominal Average Thickness tn in. Combining values from the two systems may result in non-conformance with the standard. The minimum wall thickness on inspection is shown in Table X1.

The test system settings may be changed, or the transducer scoil s or sensor s adjusted, and the unit restandardized, but all pipe tested since the last acceptable standardization must be retested for acceptance. NOTE 4—Notwithstanding the absence of a signature or notarization, the organization submitting the Report is responsible for the contents of the report.

The methods used for cleaning and preparing the surfaces for examination shall not be detrimental to the base metal or the surface nish. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Upon agreement between purchaser and manufacturer, Practice E shall be employed in addition to one of the full periphery tests.

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ASTM A999 for Alloy and Stainless Steel Pipe

The bottom of imperfections shall be visible and the prole shall be rounded and faired-in. Asrm dimensions of these standards should not be construed as the minimum size imperfection detectable by such equipment. The chemical composition thus determined, or that determined from a product analysis made by the tubular product manufacturer shall conform to the requirements specied. There shall be no variation under the specied wall thickness. 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.


A superscript epsilon e indicates an editorial change since the last revision or reapproval. Within the text, the SI units are shown in brackets. To be accepted, retested pipe shall meet the test requirement. This procedure shall be available for audit. Notches shall be placed on both the OD and ID surfaces. The standard sizes do not prohibit the production and use of other sizes of pipe produced to the various aetm specications referenced in 1.

Only one retest of any lot will be permitted. The hole diameter shall be no larger than as follows: Referenced Documents purchase separately The documents listed astn are referenced within the subject standard but are not provided as part of the standard.

Within the text, the SI units are shown in brackets. 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 These pipes may be repaired when such repair is permitted by the applicable product specication.

The values stated in either inch-pound units or SI units are to be regarded separately as standard.

ASTM D e1. This standard does not purport to address all of the safety concerns, if any, associated with its use. The values stated in each system are not exact equivalents; therefore each system is to be used independently of the other without combining values in any way.

aetm If aztm 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. This standard does not purport to address all of the safety concerns, if any, associated with its use.


Cleaning shall be performed in accordance with a written procedure that has been shown to be effective. Title of Specication ASTM Designation3 are not exact equivalents; therefore each system must be used independently of the other. The sensitivity of this test decreases with thickness over 0. The tolerances on outside diameter include ovality except as provided for in The absence of any inspection requirements in the specication shall not relieve asgm 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 internal surface of aa999 nished ferritic steel pipe shall be pickled or blast cleaned to a free of scale condition equivalent to the CSa2 visual standard in SSPC-SP6. Marking shall begin approximately 12 in.

Unless otherwise specied, pipe of NPS 4 and smaller may be weighed in convenient lots; pipe in sizes larger than NPS 4 shall be a99 separately. There shall be no variation over the specied inside diameter. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

NOTE 2—Thin-wall pipe usually develops signicant ovality out-ofroundness during nal annealing, straightening, or both.

ASTM A for Alloy and Stainless Steel Pipe

This specification Footnote 2 covers a group of general requirements that, unless otherwise specified in an individual specification, shall apply to the ASTM product specifications noted below. All defective items shall be replaced with acceptable items prior to lot acceptance. Except as otherwise specied in the contract or purchase order, the manufacturer may use his own or any other suitable facilities for the performance of the inspection and test requirements unless disapproved by the purchaser at the time the order is placed.

When using small or subsize specimens, the largest one possible shall be used.