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Product Overview
Crafted via TMCP controlled rolling with low-carbon micro-alloy formula, this pipe hits a minimum 52 ksi yield strength, resists hydrogen-induced cracking and sulfide corrosion, and fits seamless, ERW and LSAW forming processes. We customize outer diameter, wall thickness, anti-corrosion coating (3PE/FBE/epoxy) and pipe ends (bevel/plain/threaded) to match your onshore, offshore or underground engineering demands. Every batch undergoes full NDT inspection, hydrostatic pressure testing and Charpy impact test, with official EN 10204 3.1 mill certificates attached for all export shipments.
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About Our Factory & Brand: Jiangsu Cunrui Metal Products Co., Ltd
Headquartered in Wuxi New District, Jiangsu Cunrui Metal Products Co., Ltd is a professional integrated pipe manufacturing factory combining independent rolling, welding, surface treatment and full-lab testing lines, specializing in energy-grade carbon steel line pipes for over 12 years.
Our factory covers a 35,000㎡ production base equipped with automatic forming machines, digital ultrasonic flaw detectors, low-temperature impact test benches and full-set anti-corrosion coating workshops. We strictly separate raw material storage, production processing, finished product inspection and export packaging zones to eliminate mixed-spec risks. All core production procedures are operated by technicians with 8+ years pipeline steel experience; third-party audits by SGS, BV and TUV are supported anytime for overseas partners.
We don't act as a middleman-all X52 Pipeline Pipe goods are mill-direct, allowing us to slash intermediate markup and keep stable lead times even during peak construction seasons.
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Chemical Composition & Mechanical Properties of X52 Pipeline Steel
Chemical Composition (Max wt%, API 5L Standard)
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | |
|---|---|---|---|---|---|
| Limit | 0.28 | 1.40 | 0.030 | 0.030 |
Low carbon content greatly improves field weld performance, while controlled manganese and low sulfur & phosphorus eliminate brittle fracture risks for buried long-distance pipelines. Trace alloy elements are precisely adjusted to boost anti-HIC performance for sour oil & gas fields.
Core Mechanical Performance
Yield Strength: 52 ksi (359 MPa) minimum
Tensile Strength: 66 ksi (455 MPa) minimum
Elongation: ≥21%
Hardness: ≤22 HRC (PSL2 stricter control for sour service)
Low-Temperature Impact Toughness: Stable Charpy V-notch impact value at -20℃, mandatory DWTT test for PSL2 grade for crack resistance
These balanced mechanical indexes make this pipe withstand sustained underground pressure, ground settlement and temperature fluctuation without deformation or leakage.
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Wide Application Scenarios
The durable X52 Pipeline Pipe acts as the primary pressure-bearing carrier for medium and high-pressure fluid delivery across multiple core industries:
Oil & Gas Energy Engineering
Onshore crude gathering pipelines, inter-city natural gas trunk lines, shallow offshore subsea flowlines, refinery internal circulation piping and wellhead connecting pipes. Its sour-resistance feature fits mining regions with sulfur-containing oil and gas.
Urban Municipal Construction
City medium-pressure natural gas pipe networks, industrial circulating water supply & drainage pipes, cross-river buried fluid pipelines and pipeline support frames for bridge projects.
Petrochemical & Power Generation
Chemical medium transmission pipelines, cooling piping for thermal power plants, auxiliary hydrogen delivery pipelines and internal pressure fluid systems inside processing factories.
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Our Global Cooperation Business Scope
Jiangsu Cunrui Metal Products Co., Ltd provides one-stop complete pipeline material solutions for global EPC contractors, energy operators, engineering companies and metal distributors:
Product range: API 5L line pipes (X42/X46/X52/X60/X65/X70), seamless carbon steel tubes, anti-corrosion coated steel pipes, structural steel profiles
Custom service: Non-standard length cutting, customized anti-corrosion coating, pipe end machining, OEM marking, waterproof bundled export packaging
Global logistics: Sea shipment from Shanghai, Ningbo and Tianjin ports; overland truck transport to Central Asia and Russia; mixed container consolidation for small multi-spec orders
Key cooperative regions: Southeast Asia, Middle East, Central Asia, North Africa, Eastern Europe, Latin America
Full project support: Free technical parameter consulting, project material budget calculation, timely customs clearance document supply, full after-sales quality tracking for bulk engineering orders
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Why choose X52 Pipeline Pipe
- Stable Structural Performance: Different from ordinary carbon steel pipes, the product adopts precision TMCP thermo-mechanical controlled rolling technology. It features uniform internal grain structure and zero residual stress inside the pipe body, which effectively prevents bending, cracking and interface peeling failures. It can stably cope with long-term buried installation and complex seasonal temperature changes, ensuring long-term operational stability of the pipeline system.
- Strong Harsh Environment Adaptability: Manufactured with a low-impurity and optimized micro-alloy formula, this X52 Pipeline Pipe delivers outstanding anti-fatigue and anti-sour corrosion properties. It fits various harsh working scenarios, including saline-alkali soil burial, humid offshore marine environments, and transmission of sulfur-containing oil and gas media, greatly expanding its applicable engineering scenarios.
- Excellent Construction Compatibility: The pipe boasts superior weldability and machinability with stable and reliable processing performance. It supports on-site rapid cutting, welding, beveling and other secondary processing, which effectively shortens project construction cycles, reduces on-site construction difficulties and labor costs for engineering contractors.
- High Comprehensive Cost Performance: As a mainstream grade for medium and low-pressure fluid transmission projects, it fully meets the operating standards of most conventional energy, petrochemical and municipal pipeline projects. Compared with higher-grade pipeline steel, it avoids performance redundancy, features lower purchase cost and fewer later maintenance failures, helping clients save overall project investment and operation costs.
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Frequently Asked Questions
Q1: What's the core difference between PSL1 and PSL2 X52 Pipeline Pipe (3rd keyword: X52 Pipeline Pipe)?
Q2: Are you a real manufacturer or trading firm? Can I arrange a factory visit?
Q3: What anti-corrosion coatings can you apply on X52 Pipeline Pipe?
Q4: What's your MOQ and production lead time?
Q5: Which payment terms do you accept for international buyers?
