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Help CenterCarbon Steel Pipe for Oil and Gas Transport API 5L X60 Seamless 8 Inch
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your reliable partner in premium steel solutions. Our Carbon Steel Pipe for Oil and Gas Transport API 5L X60 Seamless 8 Inch is engineered to meet the rigorous demands of the energy industry. With a strong export volume of US$50 million to US$100 million annually and a dedicated team of 51–100 experienced professionals, we ensure every pipe delivers unmatched performance, safety, and durability. This pipe is manufactured in strict accordance with the API 5L X60 specification, offering high yield strength and excellent weldability for critical pipeline applications.
Our seamless manufacturing process eliminates weak points, providing a uniform wall structure that withstands high pressure and corrosive environments. Whether you are transporting crude oil, natural gas, or refined products, this 8-inch seamless carbon steel pipe guarantees leak-free operation and long service life. Backed by our ISO9001-certified quality management system, each pipe undergoes rigorous testing to ensure compliance with international standards. Explore the detailed features below to understand why Hemaokang Steel is the preferred choice for global buyers.
Key Features & Technical Specifications
- Material Grade: API 5L X60 (L415) – Minimum yield strength 415 MPa, suitable for high-pressure transmission.
- Manufacturing Process: Hot-rolled seamless – no welded seams, ensuring uniform strength and reliability.
- Size: 8 Inch (Nominal diameter DN200) – Outer diameter 219.1 mm, with customizable wall thickness options.
- Standards Compliance: Manufactured per API 5L (46th edition), meeting ISO 3183 and other international norms.
- Testing: 100% hydrostatic test, ultrasonic test, and tensile test available upon request.
- Surface Finish: Black painting, varnished, or bare surface – anti-corrosion coating optional.
- Ends: Beveled ends for easy welding, with plain ends or threaded ends as needed.
- Length: Random length (5.8m–12m) or fixed length per customer specification.
Technical Parameters (Typical Values)
| Parameter | Value |
|---|---|
| Outer Diameter | 219.1 mm (8 inch) |
| Wall Thickness | SCH 40 (8.18 mm) / SCH 80 (10.97 mm) / Custom |
| Yield Strength (min) | 415 MPa (60,000 psi) |
| Tensile Strength (min) | 520 MPa (75,000 psi) |
| Chemical Composition | C ≤ 0.26%, Mn ≤ 1.40%, P ≤ 0.030%, S ≤ 0.030% |
| Length | 5.8m – 12m (random) or fixed |
Customer Benefits
- Enhanced Safety: Seamless construction eliminates weld defects, reducing the risk of leaks and failures in high-pressure pipelines.
- Cost Efficiency: Longer service life and lower maintenance costs compared to welded pipes, with excellent resistance to corrosion and cracking.
- Versatile Application: Suitable for onshore and offshore oil & gas transmission, as well as water, slurry, and structural applications.
- Easy Installation: Beveled ends facilitate fast, reliable welding on site, reducing installation downtime.
- Global Compliance: Meets API 5L, ISO 3183, and other major standards, ensuring smooth customs clearance and project acceptance worldwide.
- Flexible Sourcing: We offer competitive pricing, fast delivery, and customizable lengths, coatings, and end preparations.
Why Choose Hemaokang Steel?
Since our establishment in 2025, Hemaokang Steel (Shandong) Co., Ltd. has rapidly grown into a trusted supplier of carbon steel pipes, with an annual export value exceeding US$50 million. Our team of 51–100 skilled employees operates from our base in Liaocheng, Shandong – a major steel production hub in China. We serve markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more, demonstrating our global reach and commitment to quality.
Every pipe is backed by our ISO9001-certified quality management system, ensuring consistent product quality from raw material sourcing to final inspection. Our experienced QC team conducts thorough checks, including dimensional verification, mechanical testing, and hydrostatic pressure tests. We also offer third-party inspection services (e.g., SGS, BV) upon request, giving you complete peace of mind.
Ready to secure your pipeline supply? Contact us today for a customized quote, technical datasheet, or sample. Our sales engineers are available to discuss your specific requirements, whether you need standard stock items or tailored solutions. Trust Hemaokang Steel for durable, API 5L X60 seamless pipes that deliver performance and reliability.
Frequently Asked Questions (FAQ)
- Q: What is the difference between seamless and welded pipe for oil & gas transport? A: Seamless pipes are manufactured without a welded seam, offering superior strength and uniformity. They are preferred for high-pressure applications because they eliminate potential weak points from weld joints, reducing the risk of leaks and failures.
- Q: Can you provide pipes with different wall thicknesses? A: Yes, we offer standard schedules like SCH 40 and SCH 80, as well as custom wall thicknesses according to your project specifications. Please contact us with your requirements.
- Q: What is the minimum order quantity (MOQ) for this 8-inch pipe? A: Our standard MOQ is 10 tons, but we can accommodate smaller trial orders for new customers. Contact our sales team for details.
- Q: Do you provide third-party inspection certificates? A: Absolutely. We can arrange inspection by SGS, BV, or other accredited bodies at your cost. We also provide our own mill test certificates (MTC) with each shipment.
- Q: How long does delivery typically take? A: For stock sizes, delivery is usually within 15–20 days after order confirmation. For custom specifications, lead time may extend to 30–45 days, depending on quantity and complexity.
- Q: What surface treatments are available? A: Standard options include black painting, varnished, or bare (no coating). For anti-corrosion requirements, we can apply FBE (fusion bonded epoxy) or 3LPE coating upon request.
- Q: Is the pipe suitable for sour service (H2S environment)? A: API 5L X60 has standard chemical composition and may not be specifically designed for sour service. If you require resistance to hydrogen-induced cracking (HIC), we recommend discussing with our technical team for possible customization or alternative grades.
- Q: Do you provide sample pipes for testing? A: Yes, we can provide small samples (e.g., 1 meter length) for quality evaluation. Sample cost and shipping are negotiable. Please contact us to arrange.
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