49 C.F.R. Subpart B—Materials
Title 49 - Transportation
This subpart prescribes minimum requirements for the selection and qualification of pipe and components for use in pipelines. Materials for pipe and components must be: (a) Able to maintain the structural integrity of the pipeline under temperature and other environmental conditions that may be anticipated; (b) Chemically compatible with any gas that they transport and with any other material in the pipeline with which they are in contact; and (c) Qualified in accordance with the applicable requirements of this subpart. (a) New steel pipe is qualified for use under this part if: (1) It was manufactured in accordance with a listed specification; (2) It meets the requirements of— (i) Section II of appendix B to this part; or (ii) If it was manufactured before November 12, 1970, either section II or III of appendix B to this part; or (3) It is used in accordance with paragraph (c) or (d) of this section. (b) Used steel pipe is qualified for use under this part if: (1) It was manufactured in accordance with a listed specification and it meets the requirements of paragraph II-C of appendix B to this part; (2) It meets the requirements of: (i) Section II of appendix B to this part; or (ii) If it was manufactured before November 12, 1970, either section II or III of appendix B to this part; (3) It has been used in an existing line of the same or higher pressure and meets the requirements of paragraph II-C of appendix B to this part; or (4) It is used in accordance with paragraph (c) of this section. (c) New or used steel pipe may be used at a pressure resulting in a hoop stress of less than 6,000 p.s.i. (41 MPa) where no close coiling or close bending is to be done, if visual examination indicates that the pipe is in good condition and that it is free of split seams and other defects that would cause leakage. If it is to be welded, steel pipe that has not been manufactured to a listed specification must also pass the weldability tests prescribed in paragraph II-B of appendix B to this part. (d) Steel pipe that has not been previously used may be used as replacement pipe in a segment of pipeline if it has been manufactured prior to November 12, 1970, in accordance with the same specification as the pipe used in constructing that segment of pipeline. (e) New steel pipe that has been cold expanded must comply with the mandatory provisions of API Specification 5L. [35 FR 13257, Aug. 19, 1970, as amended by Amdt. 191–1, 35 FR 17660, Nov. 17, 1970; Amdt. 192–12, 38 FR 4761, Feb. 22, 1973; Amdt. 192–51, 51 FR 15335, Apr. 23, 1986; 58 FR 14521, Mar. 18, 1993; Amdt. 192–85, 63 FR 37502, July 13, 1998]
Title 49: Transportation
PART 192—TRANSPORTATION OF NATURAL AND OTHER GAS BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS
Subpart B—Materials
§ 192.51 Scope.
§ 192.53 General.
§ 192.55 Steel pipe.
§ 192.57 [Reserved]
§ 192.59 Plastic pipe.
(a) New plastic pipe is qualified for use under this part if:
(1) It is manufactured in accordance with a listed specification; and
(2) It is resistant to chemicals with which contact may be anticipated.
(b) Used plastic pipe is qualified for use under this part if:
(1) It was manufactured in accordance with a listed specification;
(2) It is resistant to chemicals with which contact may be anticipated;
(3) It has been used only in natural gas service;
(4) Its dimensions are still within the tolerances of the specification to which it was manufactured; and
(5) It is free of visible defects.
(c) For the purpose of paragraphs (a)(1) and (b)(1) of this section, where pipe of a diameter included in a listed specification is impractical to use, pipe of a diameter between the sizes included in a listed specification may be used if it:
(1) Meets the strength and design criteria required of pipe included in that listed specification; and
(2) Is manufactured from plastic compounds which meet the criteria for material required of pipe included in that listed specification.
[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192–19, 40 FR 10472, Mar. 6, 1975; Amdt. 192–58, 53 FR 1635, Jan. 21, 1988]
§ 192.61 [Reserved]
§ 192.63 Marking of materials.
(a) Except as provided in paragraph (d) of this section, each valve, fitting, length of pipe, and other component must be marked—
(1) As prescribed in the specification or standard to which it was manufactured, except that thermoplastic fittings must be marked in accordance with ASTM D 2513; or
(2) To indicate size, material, manufacturer, pressure rating, and temperature rating, and as appropriate, type, grade, and model.
(b) Surfaces of pipe and components that are subject to stress from internal pressure may not be field die stamped.
(c) If any item is marked by die stamping, the die must have blunt or rounded edges that will minimize stress concentrations.
(d) Paragraph (a) of this section does not apply to items manufactured before November 12, 1970, that meet all of the following:
(1) The item is identifiable as to type, manufacturer, and model.
(2) Specifications or standards giving pressure, temperature, and other appropriate criteria for the use of items are readily available.
[Amdt. 192–1, 35 FR 17660, Nov. 17, 1970, as amended by Amdt. 192–31, 43 FR 883, Apr. 3, 1978; Amdt. 192–61, 53 FR 36793, Sept. 22, 1988; Amdt. 192–62, 54 FR 5627, Feb. 6, 1989; Amdt. 192–61A, 54 FR 32642, Aug. 9, 1989; 58 FR 14521, Mar. 18, 1993; Amdt. 192–76, 61 FR 26122, May 24, 1996; 61 FR 36826, July 15, 1996]
§ 192.65 Transportation of pipe.
In a pipeline to be operated at a hoop stress of 20 percent or more of SMYS, an operator may not use pipe having an outer diameter to wall thickness ratio of 70 to 1, or more, that is transported by railroad unless:
(a) The transportation is performed in accordance with API RP 5L1.
(b) In the case of pipe transported before November 12, 1970, the pipe is tested in accordance with subpart J of this part to at least 1.25 times the maximum allowable operating pressure if it is to be installed in a class 1 location and to at least 1.5 times the maximum allowable operating pressure if it is to be installed in a class 2, 3, or 4 location. Notwithstanding any shorter time period permitted under subpart J of this part, the test pressure must be maintained for at least 8 hours.
[Amdt. 192–12, 38 FR 4761, Feb. 22, 1973, as amended by Amdt. 192–17, 40 FR 6346, Feb. 11, 1975; 58 FR 14521, Mar. 18, 1993]
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