Overview
API 5L X42 seamless pipe is a mainstream medium-strength carbon steel line pipe compliant with global petroleum and gas transmission standards. Also equivalent to L290 steel grade, it features stable structural performance, excellent weldability and pressure resistance, tailored for long-distance onshore and offshore fluid transportation projects.
Core Features & & Product Advantages
X42 carbon steel seamless pipes stand out in pipeline engineering for their balanced performance and cost-effectiveness, with core strengths as follows:
Superior Structural Stability
Integrated seamless rolling process avoids seam defects, effectively resisting high pressure, torsion and external impact, suitable for harsh laying environments.
Learn more >Excellent Process Performance
Optimized micro-alloying formula delivers outstanding weldability, formability and ductility, supporting on-site cutting, bending and welding construction without performance degradation.
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Strict Dimension Tolerance
Precisely controlled outer diameter, wall thickness and straightness with minimal deviation, ensuring perfect fitting for pipeline connection and reducing construction leakage risks.
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Strong Corrosion & Pressure Resistance
Uniform metallographic structure and stable mechanical properties adapt to long-term transportation of crude oil, natural gas and industrial fluid media.
Learn more >Wide Application Compatibility: Ideal for municipal pipeline projects, oil & gas gathering pipelines, petrochemical transmission and low-pressure industrial fluid delivery systems.
Chemical Composition (Mass Fraction, %)
All X42 seamless pipes produced by Cunrui Metal strictly follow API 5L PSL1/PSL2 standard chemical component limits, with stable ingredient proportion to guarantee consistent material performance.
|
Element |
Standard Value |
|
C (Carbon) |
≤ 0.26 |
|
Mn (Manganese) |
1.15 – 1.60 |
|
Si (Silicon) |
0.15 – 0.35 |
|
P (Phosphorus) |
≤ 0.030 |
|
S (Sulfur) |
≤ 0.015 |
|
Cr (Chromium) |
≤ 0.30 |
|
Ni (Nickel) |
≤ 0.30 |
|
Cu (Copper) |
≤ 0.30 |
|
Ceq (Carbon Equivalent) |
≤ 0.43 |
Mechanical Properties
Our X42 seamless carbon steel pipes undergo standardized heat treatment and performance testing to ensure stable mechanical indicators meeting international pipeline engineering requirements.
|
Performance Item |
Standard Requirement |
Test Standard |
|
Minimum Yield Strength (Rt0.5) |
290 MPa (42 ksi) |
API 5L |
|
Tensile Strength |
415–758 MPa |
API 5L |
|
Elongation Rate |
≥ 21% |
API 5L |
|
Impact Toughness |
Qualified at Low Temperature |
ASTM A370 |
|
Hardness |
≤ 22 HRC |
ASTM E10 |
What are the main application scenarios of X42 seamless carbon steel pipes?
X42 seamless pipes are mainly used for onshore and offshore oil and gas transmission pipelines, petrochemical fluid delivery, municipal engineering pipeline systems, low-pressure industrial piping and water conservancy transmission projects. Its moderate strength and excellent comprehensive performance make it the preferred material for medium and low-pressure pipeline engineering.
Long-Term Cooperative Partnerships
Most of our clients establish stable long-term strategic cooperation with us after the first order cooperation. Different from ordinary trading enterprises, we focus on long-term win-win partnership rather than one-time sales. On the premise of ensuring product quality stability and price transparency, we provide exclusive customized solutions for regular clients, including priority production, flexible payment terms, free technical consultation and after-sales follow-up services.
At present, we have established long-term cooperative relations with many international engineering companies, pipeline construction enterprises and metal material distributors. We always take customer demand as the core, continuously optimize production technology and service system, and grow together with global partners.
Logistics Service & Packaging
Packaging
We provide standardized and customized packaging solutions for X42 seamless pipes to avoid deformation, rust and damage during long-distance transportation. All pipes are cleaned, derusted and surface treated in advance, with pipe ends protected by plastic caps to prevent port deformation and impurity entry. Standard export packaging adopts waterproof woven bags, steel strip binding and wooden pallet reinforcement; bulk cargo can be packed with steel frame fixing for extra stability.
Logistics
In terms of logistics, we have long-term cooperative shipping and freight forwarder partners, supporting sea freight, air freight and land freight global delivery. We cover major ports worldwide, provide one-stop services including order tracking, cargo insurance and customs declaration. Whether for bulk wholesale or small-batch trial orders, we can arrange fast and stable delivery to ensure goods arrive at the destination safely and on time.
Factory Strength
Adhering to refined production management, our factory implements full-process quality control from raw material screening to finished product delivery. We support full customized specifications including non-standard diameters, wall thicknesses and length requirements. Compared with peer manufacturers, our core factory advantages are prominent:
-
Guaranteed Quality System: Strictly implement ISO quality management system, all products comply with API, ASTM, GB and EU standards, with zero major quality complaints for years.
-
Transparent & Reasonable Pricing: Direct factory supply eliminates middlemen markup, providing cost-effective products while ensuring original material quality.
- Full Independent Testing Capacity: In-house laboratory supports chemical composition analysis, mechanical property testing, hydraulic pressure testing, ultrasonic flaw detection and low-temperature impact tests. Third-party authoritative inspection and testing reports are available on request.
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Complete Qualification Certificates: Possess API certification, ISO 9001 quality system certification, CE certification, SGS inspection qualification and other global authoritative certificates, fully meeting international market access standards.
- Flexible Tax & Logistics Solutions: Support third-party transshipment and diversified logistics schemes, effectively helping global clients optimize costs and avoid excessive tariff expenses, improving cross-border trade efficiency.
