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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Unless specically called out by the purchaser, the selection of the nondestructive electric test shall be at the option of the manufacturer. Permissible Variation in Outside Diameter However, sensitivity of the test to various types of discontinuities is affected by the calibration, and different techniques should be employed to detect differently oriented imperfections.

The chemical composition thus determined, or that determined from a product analysis made by the tubular product manufacturer shall conform to the requirements specied. Historical Version s – view previous versions of standard. Permissible Variations in Wall Thickness 9. On specied walls up to 0. This equipment does not preclude additional testing at earlier stages in the processing. This specification Footnote 2 covers a group of general requirements that, unless otherwise specified in an individual specification, shall apply to the ASTM axtm specifications noted below.

ASTM A for Alloy and Stainless Steel Pipe

Nominal Average Thickness tn in. An explanation of specication requirements to be completed is provided asgm 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. Defects shall be thoroughly chipped or ground out before welding and each repaired length shall be reheat treated or stress relieved as required by the applicable specication.


The area producing the signal may be reexamined. Marking shall begin approximately 12 in. 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. Only one retest of any lot will be permitted. In the case of conict between a requirement of the product specication or a requirement of this specication and a more stringent requirement of the purchase order, the purchase order shall prevail.

Disposition of such pipe shall be matter for agreement. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

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. Certied Test Report There shall be no variation under the specied wall thickness.

Upon agreement between purchaser and manufacturer, Practice E shall be employed in addition to one of the full periphery tests. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

These requirements shall take precedence if there is a conict between these requirements and the product specication.

ASTM A999/A999M – 18

One hole shall be drilled in the weld, if visible. Permissible Variation in Weight for Seamless Pipe 8. For metal-arc welded pipe with lengths shorter than 10 ft [3.

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. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.


This does not prohibit testing at higher pressures at the option of the manufacturer or as provided in NOTE 2—This table is a master table covering wall thicknesses available in the purchase of different classications of pipe, but it is not meant to imply that all of the walls listed herein are obtainable under this specication. A Maximum Curvature in any 3 ft, in. The dimensions of these standards should not be construed as the minimum size imperfection detectable by such equipment.

The test pressure or stress shall be determined by the following equation: The minimum wall thickness on inspection is shown in Table X1. 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.

ASTM A999 for Alloy and Stainless Steel Pipe

Packaging, Marking, and Loading Combining values from the two systems may result in nonconformance with the specication. The purchaser must certify that all requirements of the specication have been completed a9999 the removal of the letter that is, X, Y, or Z.

A lot shall be all material poured from one heat. 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. The standard sizes do not prohibit the production and use of other sizes of pipe produced to the various product specications referenced in 1.

ASTM Desig- nation 3. Flattening Test Requirements BoxColumbus, OH —

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