Products Description
Our LSAW Steel Pipe for Oil and Gas Transmission is manufactured by advanced longitudinal submerged arc welding technology, adopting high-quality carbon steel plates and processed through full-length mechanical expansion to ensure uniform pipe shape and stable internal structure. Compliant with API 5L PSL1/PSL2 international standards, this series of LSAW pipes covers multiple grades from Grade B to X80 and complete large-diameter thick-wall specifications, fully meeting the requirements of long-distance, high-pressure oil and gas transmission projects.
Product Standard & Material Grade
| Item | Specification Details |
| Official Product Name | LSAW Steel Pipe for Oil and Gas Transmission |
| Executive Standards | API 5L (PSL1/PSL2), ASTM A252, ASTM A671, ASTM A672, EN 10219, ISO 9001 |
| Steel Grades | API 5L Grade B, X42, X52, X60, X65, X70, X80; S235JR, S355JR, S460 |
| Production Process | Longitudinal Submerged Arc Welding (LSAW), full-length mechanical expansion, internal & external double-sided welding |
Complete Product Size Specifications
| Size Item | Parameter Range |
| Outside Diameter (OD) | 219mm - 1524mm (8 inch - 60 inch) |
| Wall Thickness (WT) | 5.0mm - 75mm |
| Standard Length | 6m, 12m, 18m, 24m (customized length available) |
| Pipe End Type | Plain End, Beveled End (30°/37.5°), Threaded End |
| Tolerance | Strict tolerance on OD, ovality and straightness, fully compliant with API standard |
Surface Treatment & Custom Service
| Item | Details |
| Surface Treatment | Black painting, varnish coating, 3LPE/2LPE anti-corrosion coating, FBE epoxy coating, coal tar enamel coating, galvanized treatment |
| Custom Processing | Cutting, bending, grooving, threading, beveling, anti-corrosion treatment, logo printing |
Product Advantages
| Advantage Dimension | Detailed Description |
| Superior Mechanical Performance | Adopts double-sided submerged arc welding technology with stable weld quality. Uniform internal stress, high yield strength and impact resistance (CVN ≥27J), suitable for low temperature (-45°C), sour service and seismic zone working conditions. |
| High Dimensional Accuracy | Full-length expansion process ensures excellent roundness, straightness and minimal residual stress, effectively reduces on-site installation errors and welding defects, improves pipeline construction efficiency. |
| High Pressure & Corrosion Resistance | Thick wall design and premium steel materials enable excellent high-pressure bearing capacity. Custom anti-corrosion coatings adapt to harsh marine, desert and underground environments, extending pipeline service life. |
| Cost-Effective for Long-Distance Projects | Fewer weld seams and stable structural performance reduce later maintenance costs. Long single pipe length reduces pipeline connection points, lowering construction and leakage risks for long-distance oil and gas transmission. |
| Strict Quality Control | 100% non-destructive testing (ultrasonic & phased array testing) for welds, full hydrostatic pressure test without leakage, all products come with official mill test certificate (MTC). |
Application Scope
| Application Field | Specific Usage |
| Oil & Gas Transmission | Long-distance onshore & offshore crude oil, natural gas, petroleum gas transmission main pipelines |
| Energy Engineering | Oilfield gathering pipelines, gas station pipeline systems, petrochemical fluid transmission pipelines |
| Industrial & Municipal Engineering | Large-diameter fluid transmission, pipeline piling, structural support for energy infrastructure projects |
Quality Inspection & Certification
| Inspection & Certification | Details |
| Testing Items | Hydrostatic pressure test, ultrasonic NDT test, radiographic test, mechanical property test (tensile, bending, impact), chemical composition analysis |
| Certifications | API 5L Certificate, ISO 9001 Quality Management Certificate, MTC Mill Test Report, Third-party inspection (SGS/BV/TUV) available |
Packaging & Shipping & Service
| Item | Details |
| Packaging | Standard export seaworthy packaging, bundled with steel strips, pipe ends protected by plastic caps, waterproof canvas wrapping, suitable for long-distance sea transportation |
| Shipping Way | By sea, by air, by truck; FCL/LCL shipping support, global port delivery |
| Service Advantage | Free sample support, customized size & coating solution, 24/7 online inquiry, fast delivery, professional after-sales service, one-stop pipeline solution |
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Contact
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Email: kepia@tjshenzhoutong.com
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Address: Chenda Road,Daqiuzhuang Town Jinghai County,Tianjin,China.
Tel
Number: +86-22-58162536
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