API 5L PSL1 X42 line pipe

Product Introduction

　　API 5L PSL1 X42 (L290) is a standard-grade carbon steel line pipe specially designed for petroleum and natural gas pipeline transportation systems. As one of the classic mainstream grades in the API 5L standard series, X42 line pipe supports both PSL1 standard and PSL2 premium specification levels to adapt to different industrial project safety and operating requirements.

　　We provide full-range API 5L PSL1 X42 line pipes with diverse manufacturing processes, including seamless (SMLS), electric resistance welding (ERW), high frequency welding (HFW), low frequency welding (LFW) and submerged arc welding (SAW). Featured with stable mechanical performance, excellent crack propagation resistance and reliable weldability, coated API 5L PSL1 X42 steel pipe is a hot-selling product, widely used for conventional transportation of oil, natural gas, water and other liquid media across global energy and industrial pipeline projects.

Basic Specifications

Complete size specifications and diversified manufacturing options for API 5L PSL1 X42 line pipes, fully compliant with API 5L 44th Edition standards, perfectly applicable for general low and medium-pressure pipeline engineering construction.

Item	Specification Details
Steel Grade	API 5L PSL1 X42 / L290
Executive Standard	API 5L 44th Edition (October 1, 2007)
Size Range	Nominal Pipe Size: 1/2" – 48" OD
Wall Thickness	SCH5, SCH10, SCH40, SCH80, SCH80S, SCH160, SCH XS, SCH XXS, full customizable X42 pipe thickness
Pipe End Type	Plain End, Bevel End, Screwed & Threaded
Manufacturing Type	Seamless (SMLS), ERW, HFW, LFW, SAW Welded, Fabricated, CDW
Delivery Condition	As-Rolled, Normalized Rolled, Thermomechanical Rolled/Formed, Normalized Formed, Normalized, Normalized & Tempered, Quenched & Tempered
Core Advantage	Stable standard strength, excellent anti-crack performance, good weldability, high cost-effectiveness and long service life
Main Application	Conveyance of oil, natural gas, water and other conventional liquid media
MOQ	1 Ton / Negotiable
Certification	MTC, EN 10204 3.1/3.2, Full API standard inspection reports

The technical data of API 5L PSL1 X42 line pipe

　　It is given based on API Spec 5L-2007 version. Below are the chemical composition and mechanical properties of seamless type API 5LPSL1 line pipe.

　　Chemical composition(a, %) of API 5L PSL1 X42 seamless pipe

C max.	Mn max.	P max.	S max.	V max.	Nb max.	Ti max.
0.28	1.30	0.030	0.030	d	d	d

a, Cu≤0.50; Ni≤0.50; Cr≤0.50; and Mo≤0.15;

　　c, Unless otherwise agreed,Nb+V≤0.06;

　　d, Nb+V+Ti≤0.15;

　　Mechanical properties of of API 5L PSL1 X42 seamless pipe

Pipe grade	YieldStrength, Rt0.5 Min (MPa)	TensileStrength, Rm Min (MPa)
L290 or X42	290	415

API 5L PSL1 X42 seamless pipe acceptable delivery condition

　　API 5L PSL1 line pipes can be delivered in as-rolled, normalizing rolled, thermomechanical rolled, thermomechanical formed, normalizing formed, normalized, normalized and tempered, or quenched and tempered.

PSL1 Standard Testing Items

All API 5L PSL1 X42 line pipes undergo comprehensive standard testing to eliminate surface and internal defects, ensuring stable quality and safe operation for general pipeline projects. The CVN impact test is only mandatory for higher-standard PSL2 grade pipes.

Test Items	Test Purpose
Chemical Product Analysis	Verify chemical composition fully complies with API 5L PSL1 X42 standard requirements
Tensile & Bend Test	Guarantee stable strength, ductility and bending resistance performance
Hydrostatic Pressure Test	Inspect pipeline pressure tightness and overall pressure-bearing capacity
Flattening Test	Check pipe body uniformity and eliminate internal structural defects
MT & NDT Non-destructive Testing	Remove microscopic surface and internal hidden defects

Application Fields

Application Industry	Typical Applications
Oil & Gas Industry	Conventional low and medium-pressure crude oil and natural gas transmission pipelines
Industrial Fluid Conveyance	Industrial water and other conventional liquid transportation pipeline systems
General Pipeline Engineering	Petrochemical supporting pipelines and municipal energy transmission projects

We supply high-quality API 5L PSL1 X42 (L290) line pipes with full-size specifications and multiple mature manufacturing processes. Featuring stable standard performance, excellent crack propagation resistance and strict API standard quality control, we provide cost-effective pipeline solutions and customized processing services for global conventional energy transportation projects.