ASTM - A 134 – 96 (Reapproved 2001) - Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)1

ASTM - A 134 – 96 (Reapproved 2001) - Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)1

         

1. Scope
1.1 This specification covers electric-fusion (arc)-welded straight seam or spiral seam steel pipe NPS 16 and over in diameter (inside or outside as specified by purchaser), with wall thicknesses up to 3⁄4 in. (19.0 mm), inclusive. Pipe having other dimensions may be furnished provided such pipe com- plies with all other requirements of this specification.
NOTE 1—Acceptability for many services may be controlled by codes or standards such as those published by the American National Standards Institute and American Society of Mechanical Engineers.
NOTE 2—For testing methods not specifically covered in this specifi- cation, reference can be made to Test Methods and Definitions A 370, with particular reference to Annex A 2 on Steel Tubular Products.
NOTE 3—A comprehensive listing of standardized pipe dimensions is contained in ANSI B 36.10.
1.2 The values stated in inch-pound units are to be regarded as the standard.
NOTE 4—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter”, “size”, and “nominal size”.
1.3 The following precautionary caveat pertains specifically to Section 5 of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
7. Retests
7.1 If any specimen tested in accordance with Section 10 fails to meet the requirements, retests of two additional specimens from the same lot of pipe shall be made, each of which shall meet the requirements specified. If any of the retests fail to conform to the requirements, test specimens may be taken from each untested pipe length at the manufacturer’s option. Each specimen shall meet the requirements specified, or that pipe shall be rejected.
8. Test Specimens of Production Welds
8.1 The weld-test specimens for the reduced-section tension test shall be taken perpendicularly across the weld and from the end of the pipe or alternatively, from flat test pieces of material conforming to the requirements in the specifications used in the manufacturer of the pipe. The alternative weld-test specimens shall be welded with the same procedure and by the same operator and equipment, and in sequence with the welding of the longitudinal joints in the pipe. The test pieces shall have the weld approximately in the middle of the specimen. The specimens shall be straightened cold, and shall be tested at room temperature.
8.2 Reduced-section tension-test specimens shall be pre- pared in accordance with Fig. number 21 of Test Methods and Definitions A 370.

12. Permissible Variations in Weights and Dimensions
12.1 Thickness and Weight—The wall thickness and weight for welded pipe under this specification shall be governed by the requirements of the specifications to which the steel was ordered.
12.2 Circumference—The outside circumference of the pipe shall not vary more than 60.5 % from the nominal outside circumference based upon the diameter specified, except that the circumference at ends shall be sized, if necessary, to meet the requirements of Section 14.
12.3 Straightness—Finished pipe shall be commercially straight. When specific straightness requirements are desired, the order should so state, and the tolerances shall be a matter of agreement between the purchaser and the manufacturer.
12.4 Ovality—Out-of-roundness—The difference between major and minor outside diameter shall not exceed 1 %. Closer tolerances may be established by agreement between the manufacturer and the purchaser. Where the D/T (outside diameter/wall thickness) is over 120, internal bracing should be utilized to achieve sizing of ends and ovality shall be by agreement between the manufacturer and purchaser.

18. Certification
18.1 Upon request of the purchaser in the contract or order, a manufacturer’s certification that the material was manufac- tured and tested in accordance with this specification, including year date, together with a report of the chemical and tensile tests shall be furnished. The pipe grade shall be identified by  the plate specification designation (year date not required) and the plate grade (where applicable).
19. Product Marking
19.1 Each section of pipe shall be marked with the manu- facturer’s distinguishing marking, this specification number and the pipe grade. The marking need not include the year date of the pipe or plate specification.
19.2 Bar Coding—In addition to the requirements in 19.1, bar coding is acceptable as a supplemental identification method. The purchaser may specify in the order a specific bar coding system to be used.
20. Protective Coating
20.1 If agreed upon between the purchaser and the manu- facturer, the pipe shall be given a protective coating of the kind and in the manner specified by the purchaser.

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ASTM - A0134 – 96 (Reapproved 2001) - Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)1
ASTM - A 0134 – 96 (Reapproved 2001) - Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)1
ASTM - A 134 – 96 (Reapproved 2001) - Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)1
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