ASTM A999 PDF

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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ASTM A999 for Alloy and Stainless Steel Pipe

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. 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.

The test pressure or stress shall be determined by the following equation: 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 This does not prohibit testing at higher pressures at the option of the manufacturer or as provided in Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

Upon agreement between purchaser and manufacturer, Practice E shall be employed in addition to one of the full periphery tests. Historical Version s – view previous versions of standard.

Packaging, Marking, and Loading 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.

In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, astj purchase order shall prevail.

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Current edition approved March 10, The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Title of Specication ASTM Designation3 are not exact equivalents; therefore each system must be used independently of the other. 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 wstm by the purchaser at the time the order is q999.

Repair by Welding Combining values from the two systems may result in nonconformance with the specication.

For metal-arc welded pipe with lengths shorter than 10 ft [3. 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.

The area producing the signal may be reexamined. 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. The internal surface of hot 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.

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 axtm same condition in a continuous furnace, and presented for inspection at the same time.

ASTM A for Alloy and Stainless Steel Pipe

Government where scale-free pipe is required. With the text, the SI units are shown in brackets. The absence of any inspection requirements in the specication shall not relieve the contractor of the responsibility for ensuring that all products or a99 submitted to the government for acceptable comply with all requirements of the contract.

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Nondestructive Test Requirements These pipes may be repaired when such repair is permitted by the applicable product specication.

Permissible Variation in Outside Diameter 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. 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.

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 lot shall be all material poured from one heat. 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 BoxColumbus, OH — Permissible Variations in Inside Diameter Nominal Average Thickness tn in.

An explanation of specication requirements to be completed is provided in The sensitivity of this test decreases with thickness over 0. Permissible Variations atsm Length One hole shall be drilled in the weld, if visible. The holes shall be ast, radially and completely through the pipe wall, with care being taken to avoid distortion of the pipe while drilling.