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Help CenterCarbon Steel Seamless Tube API 5L, 100% Ultrasonic Tested, 1 Year Warranty, Length Customization Available
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At Hemaokang Steel (Shandong) Co., Ltd., we are proud to offer our premium Carbon Steel Seamless Tube API 5L, engineered to meet the rigorous demands of the oil and gas industry. Manufactured with precision and backed by 100% ultrasonic testing, every tube delivers exceptional reliability and structural integrity. With a 1-year warranty and flexible length customization, this product is designed to provide long-term value and peace of mind for your pipeline projects.
Our factory, located in Liaocheng, Shandong, China, combines advanced production technology with strict quality control systems. Since our establishment in 2025, we have rapidly grown to serve global markets including North America, South America, Europe, Southeast Asia, Africa, and the Middle East. Our annual export value of US$50 million to US$100 million reflects the trust that international clients place in our products. As an ISO9001 certified manufacturer, we ensure that every seamless tube meets the highest industry standards.
The API 5L seamless tube is specifically designed for transporting gas, water, and oil in both onshore and offshore pipelines. Its seamless construction eliminates weak points found in welded pipes, offering superior strength and pressure resistance. Below we detail the key features and technical specifications that set this product apart.
Product Features & Technical Specifications
- Material Grade: Carbon steel, available in grades such as Grade B, X42, X52, X60, X65, and X70 per API 5L specification.
- Manufacturing Process: Hot-rolled seamless process, ensuring uniform wall thickness and excellent mechanical properties.
- 100% Ultrasonic Testing (UT): Every tube undergoes comprehensive ultrasonic inspection to detect internal and surface defects, guaranteeing zero hidden flaws.
- Length Customization: Standard lengths of 5.8m, 6m, 11.8m, or any custom length as per your project requirements – available upon request.
- End Finish: Plain ends, beveled ends, or threaded ends – customizable to suit your connection method.
- Surface Finish: Black lacquered, varnished, galvanized, or as per customer specification – optional.
- Pressure Rating: Designed to withstand high-pressure environments, with precise dimensional tolerances.
- Warranty: 1-year warranty against manufacturing defects, providing you with reliable after-sales support.
| Parameter | Specification |
|---|---|
| Standard | API 5L (latest edition) |
| Outer Diameter | 1/2″ to 48″ (customizable) |
| Wall Thickness | Schedule 10 to Schedule 160 (customizable) |
| Length | 1m to 12m (or as required) |
| Testing | 100% Ultrasonic, Hydrostatic, and Dimensional Inspection |
| Surface Treatment | Black lacquer, varnish, galvanized, or anti-corrosion coating (optional) |
| Packing | Bundles with steel straps, wrapped in waterproof cloth, or seaworthy wooden crates |
The advantages of choosing our API 5L seamless tube are clear: enhanced safety through 100% ultrasonic testing, cost savings from reduced maintenance and downtime, and flexibility with custom lengths and end finishes. This product is ideal for long-distance pipeline transportation, gathering lines, and process piping in refineries and petrochemical plants. Our ISO9001 quality management system ensures consistent product quality from raw material sourcing to final inspection.
We prioritize customer satisfaction with a dedicated team of 51-100 experienced professionals. Our global presence spans over 15 major markets, and we have built a reputation for on-time delivery and competitive pricing. The 1-year warranty is a testament to our confidence in the product’s durability and performance.
Trust Hemaokang Steel for your next project. With annual exports exceeding US$50 million, we have the capacity and capability to handle large-volume orders while maintaining strict quality control. Contact us today to discuss your specific requirements – we are ready to provide samples, technical documentation, and a customized quotation. Experience the reliability of a seamless tube that truly delivers.
Frequently Asked Questions (FAQ)
Q1: What is the minimum order quantity (MOQ) for this product?
A: Our MOQ typically starts at 5 tons for standard sizes, but we can accommodate smaller trial orders for first-time customers. Please contact us for details.
Q2: Can you provide a mill test certificate (MTC) with the shipment?
A: Yes, every order includes a comprehensive MTC per API 5L requirements, along with ultrasonic test reports and hydrostatic test certificates.
Q3: How long does delivery take?
A: Standard lead time is 15-30 days after order confirmation, depending on the quantity and customization requirements. Express delivery is available upon request.
Q4: Do you offer custom packing and marking?
A: Absolutely. We can customize packing (e.g., wooden crates, waterproof wrapping) and marking (e.g., stenciling, color coding) according to your specifications.
Q5: Is this tube suitable for sour service (H2S environment)?
A: Our standard API 5L Grade B and X42-X70 tubes are not specifically designed for sour service unless ordered with NACE MR0175 compliance. Please let us know if you require this option, and we can discuss the details.
Q6: Can I request a third-party inspection before shipment?
A: Yes, third-party inspection by SGS, BV, or any other recognized agency is welcomed. We can arrange for the inspection at your cost, and we will cooperate fully.
Q7: What payment terms do you accept?
A: We accept T/T, L/C, and for certain orders, D/P. Flexible payment terms are negotiable based on order value and customer history.
Q8: How do you ensure the quality of the ultrasonic testing?
A: Our UT equipment is calibrated regularly, and operators are certified according to ASNT standards. Each tube is scanned in both longitudinal and transverse directions to detect any internal or surface discontinuities.
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