API 5L X42 Pipes - Starlight Tubes
Starlight Tubes

API 5L X42 Pipes

High-strength pipeline steel

Manufacturing StandardAPI 5L, ISO 3183, EN 10208-1, GOST 20295, IS 1978
Dimensional RangeNB 1/2" to 48", Wall Thickness up to 35mm, Length up to 18m
Wall Schedules / RatingSCH 10S to XXS / Custom
Material Inspection & MTCEN 10204 3.1 Certified
Product Overview

API 5L X42 Line Pipes

Premium quality API 5L X42 line pipes for oil and gas transmission and distribution applications

Mill Certified Stock

Premium API 5L X42 Line Pipes

Starlight Tubes supplies high-quality API 5L X42 line pipes widely used in oil and gas transmission pipeline systems. API 5L X42 pipes offer minimum yield strength of 42,100 psi (290 MPa) with excellent ductility and weldability, making them suitable for natural gas distribution networks, crude oil gathering systems, and general purpose pipeline applications requiring reliable performance at moderate pressures.

Our API 5L X42 pipes are produced in seamless and welded (ERW, LSAW, SSAW) configurations with various end finishes including plain end, beveled end, and threaded ends. Each pipe undergoes comprehensive quality control including hydrostatic testing, non-destructive examination, chemical analysis, and mechanical property verification to ensure compliance with API 5L specifications.

Technical Specifications

ASTM / ASME Compliant
Grade
API 5L X42 (PSL1 & PSL2), Yield Strength: 290 MPa min, Tensile: 415 MPa min
Size Range
NB 1/2" to 48", Wall Thickness up to 35mm, Length up to 18m
Standards
API 5L, ISO 3183, EN 10208-1, GOST 20295, IS 1978
Applications
Gas Distribution, Oil Gathering, Water Pipelines, Plant Piping, Process Lines
Traceability: EN 10204 3.1 MTC100% PMI Inspected
Metallurgical Specifications

Technical Specifications — API 5L Grade X42 (L290)

Chemical composition and tensile specifications for API 5L X42 gas transmission line pipe

EN 10204 3.1 Certified
Grade / DeliveryC (max)Mn (max)P (max)S (max)V+Nb+Ti (max)CEpcm (max)
X42 (Seamless)0.241.300.0250.0150.150.25
X42 (Welded)0.221.300.0250.0150.150.25
Full heat number traceability stamped per length
Custom dimensions & chemical variations supplied upon RFQ
Why Choose Starlight Tubes

Your Trusted API 5L X42 Pipe Supplier

Starlight Tubes provides API 5L X42 line pipes for gas distribution and oil gathering. We offer seamless and welded options with complete API certification.

API 5L Certified
290 MPa Yield Strength
Seamless & ERW
NACE Compliant
Coating Options
Competitive Pricing
Request Custom Sizing / Quotation
Technical Clarifications

Frequently Asked Questions on API 5L X42 Pipes

Key engineering, tolerance, and international compliance answers from our metallurgical quality desk.

API 5L X42 pipes have minimum yield strength of 42,100 psi (290 MPa) and minimum tensile strength of 60,200 psi (415 MPa), making them suitable for medium-pressure pipeline applications.

Fast Track Commercial Desk

Request Project Quotation for API 5L X42 Pipes

Submit your required sizes, wall thicknesses, material grades, and total tonnage. Our technical sales engineers respond with complete mill pricing and lead times within 24 hours.

EN 10204 3.1 MTC Traceability
Third-Party Inspection Ready (TUV, DNV, BV)
Proven Industrial Track Record

Precision Manufacturing at Global Scale

Certified manufacturing, rigorous batch inspection, and reliable export logistics powering critical infrastructure projects across 6 continents.

100,000+
Metric Tons Shipped
To global energy & industrial sectors
60+
Export Destinations
USA, GCC, Europe & Asia-Pacific
ISO 9001
Certified Quality System
EN 10204 3.1 & 3.2 Traceability
99.9%
On-Time Dispatch Rate
Direct from Nhava Sheva (JNPT) port
100%
Hydrostatic Tested
Pressure tested up to 500 Bar