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Help CenterAPI 5L Gr.B Seamless Carbon Steel Pipe Schedule 40 6 Inch for Pipeline Transmission
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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our premium API 5L Gr.B Seamless Carbon Steel Pipe Schedule 40 6 Inch, specifically designed for reliable pipeline transmission. As a newly established yet rapidly growing enterprise with an annual export value exceeding US$50 million, we leverage our deep industry expertise and ISO9001-certified quality management system to deliver pipes that meet the most demanding international standards. Our seamless manufacturing process ensures superior strength, uniformity, and resistance to internal pressure, making this pipe an ideal choice for transporting oil, gas, and other fluids over long distances.
This 6-inch pipe combines the robust mechanical properties of API 5L Gr.B carbon steel with the standardized wall thickness of Schedule 40, offering a balance of durability and cost-efficiency. Whether you are constructing a cross-country pipeline or upgrading an existing transmission system, our product guarantees consistent performance, easy weldability, and long service life. Backed by our dedicated team of 51-100 professionals and a global supply chain from Qingdao Port, we ensure timely delivery and competitive pricing for markets across North America, South America, Europe, Asia, Africa, and Oceania.
Key Features & Technical Specifications
- Material: High-quality carbon steel conforming to API 5L Gr.B, ensuring excellent tensile strength and toughness.
- Manufacturing Process: Seamless (SMLS) – no welded seams, reducing the risk of leakage and failure under high pressure.
- Wall Thickness: Schedule 40 (approx. 6.35 mm for 6-inch pipe) – suitable for moderate to high-pressure pipeline applications.
- Size: 6-inch nominal diameter (OD 168.3 mm) – compatible with standard fittings and flanges.
- Length: Available in 6m, 12m, or custom lengths as per project requirements.
- End Finish: Plain end or beveled end for easy welding.
- Surface Treatment: Black painting, anti-corrosion varnish, or bare finish – customizable to your environment.
- Testing & Certification: Hydrostatic testing, dimensional inspection, and chemical analysis; ISO9001 certification available.
Technical Parameters (Typical Values)
| Parameter | Value |
|---|---|
| Nominal Diameter | 6 inch (DN150) |
| Outside Diameter (OD) | 168.3 mm |
| Wall Thickness (Schedule 40) | 6.35 mm (0.250 in) |
| Length | 6 m / 12 m (customizable) |
| Yield Strength (min) | 241 MPa (35,000 psi) |
| Tensile Strength (min) | 414 MPa (60,000 psi) |
| Pipe End | Plain End / Beveled End |
Advantages for Your Pipeline Projects
- Enhanced Safety: Seamless construction eliminates weak points found in welded pipes, reducing the risk of leaks and ruptures.
- Consistent Quality: Our ISO9001-certified processes ensure every pipe meets strict dimensional and mechanical standards.
- Cost-Effective: Schedule 40 wall thickness provides an optimal balance between material cost and pressure-bearing capability for most transmission applications.
- Easy Installation: Standard 6-inch size and beveled ends (optional) simplify welding and connection with fittings.
- Global Logistics: Shipped from Qingdao Port with flexible packaging options to protect against corrosion during transit.
Why Choose Hemaokang Steel?
With US$50 million to US$100 million in annual export value and a dedicated team of 51-100 employees, Hemaokang Steel has rapidly built a reputation for reliability in the global steel market. Our ISO9001 certification guarantees that every API 5L Gr.B seamless pipe undergoes rigorous quality control, from raw material inspection to final packaging. We serve clients in over 15 regions worldwide, including North America, Europe, and Southeast Asia, providing tailored solutions for pipeline transmission projects. Our proximity to Qingdao Port ensures efficient shipping and competitive freight rates.
Contact us today to request a quote or discuss your specific requirements. Our experienced sales team is ready to provide technical support, samples, and fast delivery to keep your pipeline project on schedule.
Frequently Asked Questions (FAQ)
-
Q: What does API 5L Gr.B stand for?
A: API 5L is a specification from the American Petroleum Institute for line pipe. Grade B indicates a minimum yield strength of 35,000 psi (241 MPa) and is commonly used in oil and gas transmission. -
Q: Is Schedule 40 suitable for high-pressure pipelines?
A: Schedule 40 provides a standard wall thickness that is adequate for moderate to high-pressure applications. For very high pressures, you may consider Schedule 80 or higher. Please consult our technical team for project-specific recommendations. -
Q: What is the exact outside diameter of a 6-inch Schedule 40 pipe?
A: The nominal outside diameter is 168.3 mm (6.625 inches). The actual OD may vary slightly within API tolerances. -
Q: Can this pipe be used for water or sewage transmission?
A: Yes, API 5L Gr.B carbon steel pipe is suitable for transporting water, oil, gas, and other fluids, provided the fluid is compatible with carbon steel (consider corrosion protection if needed). -
Q: What lengths are available?
A: Standard lengths are 6 meters and 12 meters, but we can supply custom lengths upon request. Please indicate your required length when placing an order. -
Q: Do you provide third-party inspection certificates?
A: Yes, we can arrange third-party inspections (e.g., SGS, BV) at additional cost. Our standard shipping includes mill test certificates (MTC) according to EN 10204. -
Q: What is the lead time for an order?
A: Typical lead time is 15-30 days depending on quantity and surface treatment. For urgent orders, please contact our sales team to check availability. -
Q: Can you provide samples before bulk order?
A: Yes, we can provide small samples for quality evaluation. The sample cost and shipping fee will be discussed based on your location.
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