| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | 1 Year |
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Standard:
API SPEC 5L-American Petroleum Institute Standard: Discover the gold standard in pipe manufacturing, ensuring unmatched quality and safety.
GB/T9711-China National Standard: Adhering to rigorous national standards for exceptional reliability and performance.
Uses:
Our pipes are expertly crafted for the vital task of transporting oxygen, water, and oil within the oil and gas sectors, ensuring seamless and efficient operations.
Main production steel pipe grades:
Explore our versatile range of pipe grades, including L245 / Gr.B, L290 / X42, L320 / X46, L360 / X52, L390 / X56, L415 / X60, L450 / X65, and L485 / X70. Each grade is designed to meet specific industry demands, offering strength and precision.
Dimensional tolerances:
| Pipe Types | Diameter(D) | Wall thickness(S) | ||
| Outer diameter of steel pipe(mm) | Permissible deviation(mm) | Wall thickness of steel pipe(mm) | Permissible deviation(mm) | |
| Steel Pipes | ≥60.3,S<20 | ±0.75% | ≤73.0 | +15%,-12.5% |
| ≥60.3,S≥20 | ±1.00% | >73.0,S<20 | +15%,-12.5% | |
| >73.0,S≥20 | +17.5%,-10 | |||
Chemical composition:
| Standard | Grade | Chemical Components(%) | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | ||
| API SPEC 5L GB/T9711.2 |
L245 /Gr.B | ≤0.28 | / | ≤1.2 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 |
| L290 / X42 | ≤0.28 | / | ≤1.3 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
| L320 / X46 | ≤0.28 | / | ≤1.4 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
| L360 / X52 | ≤0.28 | / | ≤1.4 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
| L390 / X56 | ≤0.28 | / | ≤1.4 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
| L415 / X60 | ≤0.28 | / | ≤1.4 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
| L450 / X65 | ≤0.28 | / | ≤1.4 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
| L485 / X70 | ≤0.28 | / | ≤1.4 | ≤0.03 | ≤0.03 | ≤0.50 | ≤0.50 | ≤0.50 | |
Mechanical properties:
| Standard | Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
| API SPEC 5L GB/T9711.2 |
L245 / Gr.B | ≥415 | ≥245 | ≥18 |
| L290 / X42 | ≥415 | ≥290 | ≥18 | |
| L320 / X46 | ≥435 | ≥320 | ≥18 | |
| L360 / X52 | ≥460 | ≥360 | ≥18 | |
| L390 / X56 | ≥490 | ≥390 | ≥18 | |
| L415 / X60 | ≥520 | ≥415 | ≥18 | |
| L450 / X65 | ≥535 | ≥450 | ≥18 | |
| L485 / X70 | ≥570 | ≥485 | ≥18 |
Packing Details:
1. Our seamless steel pipes are encased in export-ready, sea-worthy packaging, further protected by durable, water-resistant paper, ensuring they remain secure and intact during transit.
2. Our professional teams are skilled in the art of safe loading and fixing, employing meticulous methods to guarantee the secure placement and transport of your valuable steel pipes.
Delivery Detail: Expect swift delivery within 7-10 working days post-deposit, or tailored to your specific order quantity, ensuring timely arrival of our premium steel solutions.
Wuxi Tongno Special Steel Co., Ltd. Established in 2013 with a registered capital of 5 million yuan, WUXI TONGNO SPECIAL STEEL CO.,LTD has swiftly risen to prominence as a leading enterprise in the realm of seamless steel pipe manufacturing. With a steadfast commitment to quality and innovation, the company has experienced rapid development over the years, ensuring its position at the forefront of the industry. Wuxi Tongno Special Steel Co., Ltd. proudly operates three state-of-the-art seamless steel pipe production lines, each designed to cater to the diverse needs of our clients.
Wuxi Tongno Special Steel Co., Ltd. is deeply committed to its 'quality first, customer first' business philosophy. This dedication ensures the production of high-precision pipes with a wide range of wall thicknesses, catering to small quantities across numerous varieties, with a remarkable pace of production. Our offerings are recognized at an advanced level nationally, particularly in producing small-diameter, medium-thick-walled, and large-calibre thin-walled alloy seamless steel pipes. Our superior products hold a prestigious reputation both domestically and internationally, contributing significantly to numerous project constructions and showcasing our unique manufacturing expertise.
1. Exceptional Service: We promise an outstanding service experience by ensuring all inquiries are addressed within a swift 12-hour window.
2. Certifications: We proudly hold prestigious ISO 9001, CE, and SGS certifications, affirming our commitment to quality and excellence.
3. Cost-Effective Quality: Enjoy unmatched value with our competitive pricing and superior quality, directly sourced from our state-of-the-art factory.
4. Robust Production Capacity: Our impressive monthly output of 20,000 tons ensures a seamless, uninterrupted production flow to meet your demands.
5. Flexible Payment Terms: We offer flexibility with a range of payment options including T/T and L/C, tailored to suit your needs.
6. Swift Delivery & Standard Export Packaging: Benefit from our quick delivery schedules, with products securely packaged to meet stringent international export standards.
7. Factory-Direct Advantage: Our own factory gives us a unique edge to deliver competitive pricing without ever compromising on quality.
8. Third-Party Testing: We fully support independent third-party testing to ensure and validate the superior quality of our products.
9. Expert Team Support: Leverage the proficiency of our expert sales team, backed by the reliability and efficiency of our factory operations.
10.Dedicated to Customization: Customization is at the heart of our service. We not only accept your unique specifications but also prioritize them, ensuring every personalized request is fulfilled with precision.
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