ASTM - A 135 – 01 - Standard Specification for Electric-Resistance-Welded Steel Pipe1

ASTM - A 135 – 01 - Standard Specification for Electric-Resistance-Welded Steel Pipe1

    

1. Scope
1.1 This specification2 covers two grades of electric-resistance welded steel pipe in NPS 2 to NPS 30 inclusive,with nominal (average) wall thickness up to 0.500 in. (12.70 mm), inclusive, and in nominal sizes NPS 3⁄4 to NPS 5 inclusive with nominal (average) wall thickness 0.083 in. (2.11 mm) to 0.134 in. (3.40 mm), depending on size. Pipe having other dimensions (Note 1) may be furnished provided such pipe complies with all other requirements of this specification. The pipe is intended for conveying gas, vapor, water or other liquid; only Grade A is adapted for flanging and bending (Note 2). The suitability of pipe for various purposes is somewhat dependent upon its dimensions, properties, and conditions of service, so that the purpose for which the pipe is intended should be stated in the order. The pipe may be furnished either nonexpanded or cold expanded at the option of the manufacturer. When pipe is cold expanded, the amount of expansion shall not exceed 1.5 % of the outside diameter pipe size.
5. Manufacture
5.1 The steel shall be made by either or both of the following processes: basic-oxygen or electric-furnace.
5.2 Steel may be cast in ingots or may be strand cast. When steels of different grades are sequentially strand cast, identification of the resultant transition material is required. The
producer shall remove the transition material by any established procedure that positively separates the grades.
5.3 The pipe shall be manufactured from flat rolled steel in individual lengths or in continuous length by electric-resistance or electric-induction welding without the addition of extraneous
material.
5.4 The weld seam of electric-resistance welded pipe to Grade B pipe shall be heat treated after welding to a minimum temperature of 1000 °F (540 °C) or processed in such a manner
that no untempered martensite remains.
6. Chemical Composition
6.1 The steel shall conform to the requirements prescribed in Table 2, based on the heat analysis. When specified in the order, the heat analyses shall be reported to the purchaser or a
representative of the purchaser.
7. Product Analysis
7.1 An analysis may be made by the purchaser on samples of pipe selected at random and shall conform to the requirements specified in Table 2. Methods and Practices relating to
chemical analysis shall be in accordance with Test Method, Practices, and Terminology A 751.
9. Flattening Test
9.1 A specimen at least 4 in. (102 mm) in length shall be flattened cold between parallel plates in three steps with the weld located either 0° or 90° from the line of direction of force as required in 9.2. During the first step, which is a test for ductility of the weld, no cracks or breaks on the inside or outside surfaces shall occur until the distance between the plates is less than two thirds of the original outside diameter of the pipe. As a second step, the flattening shall be continued. During the second step, which is a test for ductility exclusive of the weld, no cracks or breaks on the inside or outside surfaces shall occur until the distance between the plates is less than one third of the original outside diameter of the pipe but is not less than five times the wall thickness of the pipe. During the third step, which is a test for soundness, the flattening shall be continued until the specimen breaks or the opposite walls of the pipe meet. Evidence of laminated or unsound material or of incomplete weld that is revealed during the entire flattening test shall be cause for rejection.
9.2 For pipe produced in single lengths, the flattening test specified in 9.1 shall be made on both crop ends cut from each length of pipe. The tests from each end shall be made alternately with the weld at 0° and at 90° from the line of direction of force. For pipe produced in multiple lengths, the flattening test shall be made on crop ends representing the front and back of each coil with the weld at 90° from the line of direction of force, and on two intermediate rings representing each coil with the weld 0° from the line of direction of force.
9.3 Surface imperfections in the test specimen before flattening, but revealed during the first step of the flattening test, shall be judged in accordance with the finish requirements in Section 13.
21. Packaging, Marking, and Loading for Shipment
21.1 When specified on the purchase order, packaging, marking, and loading for shipment shall be in accordance with Practices A 700.
21.2 When specified in the contract or purchase order, the material shall be preserved, packaged, and packed in accordance with MIL-STD 163. The applicable levels shall be as specified in the contract. Marking for shipment of such material shall be in accordance with Fed. Std. No. 123 for civil agencies and MIL-STD 129 or Fed. Std. No. 183 if continuous marking is required for military agencies.
22. Keywords
22.1 eddy current testing; electric resistance welded pipe; hydrostatic testing; plain end pipe; Schedule 10 pipe; threaded pipe.

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ASTM - A0135 – 01 - Standard Specification for Electric-Resistance-Welded Steel Pipe1
ASTM - A 0135 – 01 - Standard Specification for Electric-Resistance-Welded Steel Pipe1
ASTM - A 135 – 01 - Standard Specification for Electric-Resistance-Welded Steel Pipe1
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