API 5LC corrosion resistance alloy line pipe

 

We manufacture seamless alloy line pipe with improved corrosion resistant properties. the pipes provide improved corrosion resistance suitable for use in conveying gas, water, and oil in both the oil and natural gas industries.

 

the size designations are nominal pipe sizes (NPS). 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. 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, and LC80-2507 1.

 

All pipes are manufactured at a facility licensed by API

 

Normative references

API Specification 5L, Specification for Line Pipe

API Specification Q1, Specification for Quality Management System Requirements for Manufacturing

Organizations for the Petroleum and Natural Gas Industry

ANSI/NACE MR0175, Petroleum and natural gas industries - Material for use in H2S-containing environments in oil and gas production-Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

ASTM A262 4, Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels, Practice E

ASTM A370, Methods and Definitions for Mechanical Testing of Steel Products, Annex II—Steel Tubular Products

ASTM A751, Methods, Practices and Definitions for Chemical Analysis of Steel Products

ASTM E4, Practices for Load Verification of Testing Products

ASTM E10, Standard Method of Test for Brinell Hardness of Metallic Materials

ASTM E18, Standard Methods of Tests for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials

ASTM E83, Method of Verification and Classification of Extensometers

ASTM E562, Practice for Determining Volume Fraction by Systematic Manual Point Count

ISO/TR 9769 5, Steel and iron-Review of available methods of analysis

ISO 15156-3, Petroleum and natural gas industries-Material for use in H2S-containing environments in oil and gas production-Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys

 

Special processes for manufacturing conditions of seamless pipes

as-rolled (nonexpanded)	Final reheating and hot sizing or stretch reduction. Cold finishing if applied and repair welding. Nondestructive inspection.
as-rolled (expanded)	Expansion, repair welding. Nondestructive inspection.
Heat treated	Heat treatment, repair welding. Nondestructive inspection.

 

Heat Treatment

Pipe furnished to this specification may be as-rolled, solution annealed, except LC52-1200, which shall be quenched and tempered. Other appropriate heat treatment may be agreed upon between purchaser and manufacturer.

 

Traceability

the manufacturer shall establish and follow procedures for maintaining heat and/or lot identity until all required heat and/or lot tests are performed and conformance with specification requirements has been shown.

 

Hydrogen Sulfide Environments

for any grade, if the intended application is for use in an environment that contains hydrogen sulfide then this should be clearly stated in the purchase agreement.

 

Where use in an environment containing hydrogen sulfide is stated in the purchase agreement, all requirements of ANSI/NACE MR0175 and ISO 15156-3 shall be satisfied.

 

in such cases, sour service designation marking according to ANSI/NACE MR0175 and ISO15156-3, Annex C shall be applied.

 

Materials

LC30-1812	S31603/S31653
LC65-2205	S31803
LC65-2506	S31260
LC80-2507	S39274
	S32760
	S32750

 

Tensile requirements

Grade	Yield strength, min.		Tensile strength, min.		Elongation, min. Percent in 2 in.	UNS Numbers
	psi	MPa	psi	MPa
LC30-1812	30,000	207	70,000	482	25	S31603 S31653
LC65-2205	65,000	448	90,000	621	25	S31803
LC65-2506	65,000	448	95,000	656	25	S31260
LC80-2507	80,000	552	110,000	758	20	S39274 S32760 S32750

 

Dimensional range

Outside diameter: 33.4-813 mm

Wall thickness: 3.4-31.8 mm