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API SPEC 5LC Document Information:
Title
Specification for CRA Line Pipe
American Petroleum Institute
Publication Date:
Jul 1, 1998
Scope:
COVERAGE
This specification covers seamless, centrifugal cast, and welded
alloy line pipe with improved corrosion resistant properties. The
primary product is beveled pipe. If plain-end square cut or other
special end preparation is desired, this shall be subject to
agreement between the purchaser and manufacturer. Included are NPS:
1 in. through 42 in.
Grades covered by this specification are:
LC30-1812
LC52-1200
LC65-2205
LC65-2506
LC30-2242
This specification is under the jurisdiction of the Committee on
Standardization of Tubular Goods.
The purpose of this specification is to provide standards for
pipe with improved corrosion resistance suitable for use in
conveying gas, water, and oil in both the oil and natural gas
industries.
Although the 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.
The size designations are nominal pipe sizes. In the text
paragraphs herein, where pipe size limits (or size ranges) are
given, these are outside-diameter sizes except where stated to be
nominal. These outside-diameter size limits and ranges apply also
to the corresponding nominal sizes.
METRIC UNITS
Metric units in this specification are shown in italic type in
parentheses in the text and in many tables. Outside diameters air
wall thicknesses are converted from inch dimensions. The converted
diameters are rounded to the nearest 0.1 mm for diameters less than
18 in. and to the nearest 1.0 mm for diameters 18 in. and larger.
Wall thicknesses are rounded to the nearest 0.1 mm.
Metric inside diameters are calculated from the metric outside
diameters and wall thicknesses and rounded to the nearest 0.1
mm.
Metric plain-end weights are included from the metric outside
diameters and wall thicknesses using the formula in 10.1 and
rounded to the nearest 0.01 kg/M.
Metric hydrostatic pressures are calculated from metric outside
diameters and wall thicknesses and metric fiber stresses shown in
Sect. 9.
MEASURING DEVICES
If test or measuring equipment, whose calibration or
verification is required under the provisions of the specification,
is subjected to unusual questionable, recalibration or
reverification shall be performed before further use of the
equipment.
SPECIAL PROCESSES
Special processes are the final operations which are performed
during pipe manufacturing that affect attribute compliance required
in this document (except chemistry and dimensions). The applicable
special processes are:
CERTIFICATION
The manufacturer shall, upon request by the purchaser, furnish
to the purchaser a certificate of compliance stating that the
material has been manufactured, sampled, tested, and inspected in
accordance with this specification and has been found to meet the
requirements.
Where additional information is required, including the results
of mechanical testing, SR15 (Appendix D) shall be specified on the
purchase order.
A Material Test Report, Certificate of Compliance or similar
document printed from or used in electronic form from an electronic
data interchange (EDI) transmission shall be regarded as having the
same validity as a counterpart printed in the certifier's facility.
The content of the EDI transmitted document must meet the
requirements of this specification and conform to any existing EDI
agreement between the purchaser and the supplier.
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