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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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.

During the second step, which is a test for soundness, the attening shall be continued until the specimen breaks or the opposite walls of the pipe meet. Disposition of rejected pipe shall be a matter of agreement between the manufacturer and the purchaser. This procedure shall be available for audit. Only one retest of any lot will be permitted.

The length of pipe that cannot be tested shall be determined by the manufacturer and, when specied in the purchase order, reported to the purchaser. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Sampling inspection, as part of the manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or 7 Marking shall begin approximately 12 in.


ASTM A for Alloy and Stainless Steel Pipe

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Your comments are invited either for revision of this a99 or for additional standards and should be addressed to ASTM Headquarters.

NOTE 2—Thin-wall pipe usually a99 signicant ovality out-ofroundness during nal annealing, straightening, or both. A signature or notarization is not required on the certied test report, but the document shall be dated and shall clearly identify the organization submitting the report.

The test pressure or stress shall be determined by the following equation: One hole shall be drilled in the weld, if visible. Within the text, the SI units are shown in brackets.

ASTM A999/A999M – 18

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. Permissible Variations in Length Notches shall be placed on both the OD and ID surfaces.

These pipes may be repaired when such repair is permitted by the applicable product specication. For metal-arc welded pipe with lengths shorter than 10 ft [3. Current News Archive Standard Technically.

Historical Version s – view previous sstm of standard. The methods used for cleaning and preparing the surfaces for examination shall not be detrimental to atm base metal or the surface nish. 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.


The outside diameter at the point of grinding may be reduced by the amount so removed. Certied Test Report The range of pipe sizes that may be examined by each method shall be subject to the limitations in the scope of the respective practices. Combining values from the two systems may result in non-conformance with the standard. ashm

The area producing the signal may be reexamined. Nonconformance will be cause for the rejection of the lot. The values stated in either inch-pound units or SI units are to be regarded separately as standard.

ASTM A999 for Alloy and Stainless Steel Pipe

NOTE 4—Notwithstanding the absence of a signature or notarization, the organization submitting the Report is responsible for the contents of the report. To be accepted, a repaired pipe must pass the same nondestructive test by which it was rejected, and it must meet the minimum wall thickness requirements of the applicable product specication. The holes shall be drilled radially and completely through the pipe wall, with care being taken to avoid distortion of the pipe while drilling.