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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This does not prohibit testing at higher pressures at the option of the manufacturer or as provided in The area producing the signal may be reexamined.
Cleaning shall be performed in accordance with a written procedure that has been shown to be effective. 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.
This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. A superscript epsilon e indicates an editorial change since the last revision or reapproval. The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specication.
ASTM A999/A999M – 18
One hole shall be drilled in the weld, if visible. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental a9999 and determine the applicability of regulatory ast prior to use. The methods used for cleaning and preparing the surfaces for examination shall not be detrimental to wstm base metal or the surface nish.
NOTE 4—Notwithstanding the absence of a signature or notarization, the organization submitting the Report is responsible for the contents of the report.
Current edition approved March 10, Permissible Variations in Wall Thickness 9.
ASTM A for Alloy and Stainless Steel Pipe
It should be recognized that different techniques should be used to detect differently oriented imperfections. Permissible Variation in Outside Diameter 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 rst step, which is a test for ductility, no cracks or breaks on the inside or outside surfaces, except as provided for in NOTE 2—Thin-wall pipe usually develops signicant ovality out-ofroundness during nal annealing, straightening, or both. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
There shall be no variation over the specied inside diameter. The chemical composition thus determined, or that determined from a product analysis made by the tubular product manufacturer shall conform to the requirements specied.
A lot shall consist of all pipe of the same outside diameter and wall thickness manufactured during an 8-h shift from the same heat of steel, and heat treated under the same conditions of temperature and time in a single charge in a batch type furnace, or heat treated under the same condition in a continuous furnace, and presented for inspection at the same time.
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 The hydrostatic test may be performed prior to cutting to nal length, or prior to upsetting, swaging, expanding, bending, or other forming operations.
All required tests and inspection shall be made at the place of manufacture prior to shipment, unless otherwise specied, and shall be conducted so as not to interfere unnecessarily with operation of the works.
There shall be no variation under the specied wall thickness. 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.
All burrs at the ends of the pipe shall be removed. This equipment does not preclude additional testing at earlier stages in the processing. Within the text, the SI units are shown in brackets.
For pipe less than NPS 2 and pipe under 3 ft [1 m] in length, the required information may be marked on a tag securely attached to the bundle or box in which the pipes are shipped. In the case of conict between asym 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.