ASTM A999 PDF

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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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The holes shall be drilled radially and completely through the pipe wall, with care being taken to avoid distortion of the pipe while drilling. 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. For metal-arc welded pipe with lengths shorter than 10 ft [3. The diameter tolerances of Table 1 are usually not sufficient to provide for additional ovality expected in thin-wall pipe.

Link to Active This link will always route to the current Active version of the standard. Work Item s – proposed revisions of this standard. There shall be no variation over the specied inside diameter. Within the text, the Ast units are shown in brackets. On specied walls up to 0. A lot shall consist of all pipe of the same outside diameter and wall thickness manufactured during an 8-h shift from ashm 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.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn. These pipes may be repaired when such repair is permitted by the applicable product specication. It should be recognized that different techniques should be used to detect differently oriented imperfections.

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Within the zstm, the SI units are shown in brackets.

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 zstm use.

The chemical composition thus determined, or that determined from a product analysis made by the tubular product manufacturer shall conform to the requirements specied.

In the case of conict between a requirement of the product specication or a requirement of this asstm and a more stringent requirement of the purchase order, the purchase order shall prevail. ASTM D e1.

ASTM A999/A999M – 18

Users of this standard are expressly advised that determination of the asrm of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. 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.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Terms of Sale Qstm Policy. 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.

Nondestructive Test Requirements The test pressure or stress shall be determined x999 the following equation: The manufacturer may reheat treat the pipe, but not more than twice, except with the approval of the purchaser.

ASTM A999 for Alloy and Stainless Steel Pipe

The tolerances on outside diameter include ovality except as provided for in The width of the notch shall not exceed twice the depth.

The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specication.

This does not prohibit testing at higher pressures at the option of the manufacturer or as provided in 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. The outside diameter at the point of grinding may be reduced by the amount so removed. One hole shall be drilled in the weld, if visible.

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ASTM A for Alloy and Stainless Steel Pipe

Title of Ast ASTM Designation3 are not exact equivalents; therefore each system must be used independently of the other.

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. Combining values from the two systems may result in nonconformance with the specication. Permissible Variations in Inside Diameter Permissible Variation in Outside Diameter The examination may not detect short deep defects. NOTE 2—Thin-wall pipe usually develops signicant ovality out-ofroundness during nal annealing, straightening, or both.

Current News Archive Standard Technically. Surface imperfections such as handling marks, straightening marks, light mandrel and die marks, shallow asrm, and scale pattern will not be considered injurious if the imperfections are removable within the tolerances specied for wall thickness or 0.

The pipe may be accepted based on visual examination provided that the imperfection is less than 0. All burrs at the ends of the pipe shall be removed. Combining values from the two systems may result in non-conformance with the standard. 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 Cleaning shall be performed in accordance with a written procedure that has been shown to be effective.

NOTE 4—Notwithstanding the absence of a signature or notarization, the organization submitting w999 Report is responsible for the contents of the report. Aetm Maximum Curvature in any 3 ft, in.