| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | 1 Year |
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Standard:
API SPEC 5L--American Petroleum Institute Standard
GB/T9711--China National Standard
Uses:
Expertly crafted for the secure and efficient transportation of oxygen, water, and oil, our pipes are a vital component in the oil and gas industry, ensuring smooth operations and enhancing productivity.
Main production steel pipe grades:
Crafted with precision, our steel pipes are available in a variety of grades to suit specific requirements: L245 / Gr.B, L290 / X42, L320 / X46, L360 / X52, L390 / X56, L415 / X60, L450 / X65, L485 / X70, each offering unique properties for varied applications.
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 export packages are meticulously crafted to withstand the rigors of sea transport. Each is wrapped in durable, waterproof paper to ensure your product arrives in pristine condition regardless of the journey.
2. Our professional teams are experts in safe loading and securing, providing peace of mind that your order is fixed securely and stably for transit.
Delivery Detail: Your order will be dispatched promptly within 7-10 working days after deposit confirmation. Tailored timelines may apply, ensuring flexibility according to your specific order quantity.
Wuxi Tongno Special Steel Co., Ltd. was founded in 2013 with a registered capital of 5 million yuan, establishing itself as a specialist in the seamless steel pipe manufacturing industry. Over the years, Wuxi Tongno Special Steel Co., Ltd. has experienced significant growth and now boasts three cutting-edge seamless steel pipe production lines.
Wuxi Tongno Special Steel Co., Ltd. is dedicated to a business philosophy centered on 'quality first, customer first.' This commitment ensures the production of high-precision pipes with an impressive range of wall thicknesses and a wide variety of specifications in small quantities, maintaining a fast-paced production process. Our products consistently lead the domestic market, particularly excelling in the small-diameter, medium-thick-walled, and large-calibre thin-walled alloy seamless steel pipe sectors. These products are highly esteemed both domestically and internationally, playing an integral role in numerous construction projects and showcasing our unique manufacturing expertise.
1. Exceptional Service: Experience our top-tier service, with guaranteed responses to all your inquiries within an impressive 12 hours.
2. Certifications: We proudly hold prestigious certifications such as ISO 9001, CE, and SGS, ensuring our commitment to quality.
3. Cost-Effective Quality: Enjoy the perfect balance of competitive pricing and superior quality, sourced directly from our state-of-the-art factory.
4. Robust Production Capacity: Our impressive monthly output of 20,000 tons guarantees a seamless and efficient production flow.
5. Flexible Payment Terms: We offer a wide range of payment methods, including T/T and L/C, tailored to your convenience.
6. Swift Delivery & Standard Export Packaging: Anticipate rapid delivery and products packaged to meet rigorous international export standards.
7. Factory-Direct Advantage: Our factory-direct approach lets us provide unmatched prices, maintaining high-quality standards.
8. Third-Party Testing: We invite any third-party testing to ensure and verify the superior quality of our products.
9. Expert Team Support: Rely on our expert sales team and dependable factory support for all your needs.
10.Dedicated to Customization: Your unique specifications are not only welcomed but form the core of our service commitment. We strive to fulfill every custom request with precision.
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