scope:

1 Scope

1.1 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

a. This specification is under the jurisdiction of the Committee on Standardization of Tubular Goods.

b. 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.

c. 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.

d. 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.

1.2 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 out-side diameters and wall thicknesses and rounded to the nearest 0.1 mm.

Metric plain-end weights are included from the metric out-side 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.

The factors used where conversions are appropriate are as follows.

The following formula was used to convert degrees Fahrenheit (°F) to degrees Celsius (°C):

°C=5/9(°F-32).

1.3 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.

1.4 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:

1.5 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.