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API 5L SSAW Line Pipe

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API 5L SSAW Line Pipe

API 5L SSAW Line Pipe

1. Scope
1.1 This specification covers seamless and welded steel line pipe. It includes standard-weight and extra-strong threaded line pipe. It includes standard-weight and extra-strong threaded line pipe; and standard-weight plain-end, regular-weight plain-end, special plain-end, extra-strong plain-end, special plain-end, extra-strong plain-end pipe; as well as bell and spigot and through-the-flow line (TFL) pipe. The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water, and oil in both the oil and natural gas industries.
1.2 Dimensional requirements on threads and thread gauges, stipulations on gauging practice, gauge specifications and certification, as well as instruments and methods for inspection of threads are given in API Standard 5B and are applicable to products covered by this specification. Grades covered by this specification are A25, A, B, X42, X46, X52, X56, X60, X65, X70, and X80 and grades intermediate to the Grades X42 and higher listed (see note). The chemical composition and mechanical properties of intermediate grades that are subject to agreement between the purchaser and the manufacturer must be consistent with the corresponding requirements for the grades to which the material is intermediate.
Note: The grade designations used herein for Grades A and B do not include reference to the specified minimum yield strength. Other grade designations used herein comprise the letter A or X followed by the first two digits of the specified minimum yield strength.
1.3 Pipe manufactured as Grade X60 or higher shall not be substituted for pipe ordered for Grade X52 or lower with-out purchaser approval.
1.4 Although plain-end line pipe meeting this specification is primarily intended for field makeup by circumferential welding, the manufacturer will not assume responsibility for field welding.
1.5 For regular-weight and special plain-end pipe(special weight) shown in Tables 6A, 6B, and 6C and for standard weight threaded pipe larger than nominal size 12, the size designations used herein are outside diameter sizes. For all other pipe, the size designations are nominal pipe sizes. In the text of this specification, pipe size limits (or size ranges) are outside diameter sizes except where stated to be nominal. These outside diameter size limits and ranges also apply to the corresponding nominal sizes.
1.6 Class Ⅱ steel is rephosphorized and probably has better threading properties than Class I. Because Class Ⅱ has higher chemical properties than Class I, it may be somewhat more difficult to bend.
1.7 U.S. customary units are used in this specification; metric (SI) units are shown in parenthese in the text and in many tables. See Appendix J for specific information about rounding procedures and conversion factors.

2. Product Usages:
API 5L Line Pipe are mainly applied in transportation on gas, water, oil in Oin & Gas Industry as well as extracting oil & natural gas from oil well.

3. Type of Process
- SMLS (Seamless)
- ERW(Electrical Resistance Welding)
- LSAW(Longitudinal Submerged Arc Welding)
- SSAW(Spiral Submerged Arc Welding)

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