| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | 1 Year |
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Standard:
API SPEC 5L--This esteemed standard from the American Petroleum Institute ensures the utmost quality and precision, meeting global expectations for excellence in pipeline service.
GB/T9711--An acclaimed China National Standard that assures superior manufacturing quality, catering to the demanding needs of modern industries.
Uses:
Ideal for the transportation of oxygen, water, and oil, these seamless steel pipes are integral to the oil and gas industry, ensuring uninterrupted operations and safety.
Main production steel pipe grades:
Our robust range of steel pipe grades, including L245 / Gr.B, L290 / X42, L320 / X46, L360 / X52, L390 / X56, L415 / X60, L450 / X65, and L485 / X70, offers exceptional versatility, ensuring that all your unique project needs are met with precision and quality.
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. Secure Export Sea-worthy Package coupled with Protective Waterproof Paper, ensuring your products' safety during transit across seas.
2. Expert Safe Loading and Fixing by our Professional Teams, dedicated to handling your goods with the utmost care and precision.
Delivery Detail: Within 7-10 working days after receiving the deposit, or tailored to accommodate your specific order quantity, ensuring timely and efficient delivery.
Wuxi Tongno Special Steel Co., Ltd. established in 2013 with a registered capital of 5 million yuan, WUXI TONGNO SPECIAL STEEL CO., LTD is a distinguished expert in the realm of seamless steel pipe manufacturing. From its inception, the company has witnessed exponential growth and evolution, becoming a trusted name in the industry. Tongno Special Steel Co., Ltd. boasts a sophisticated infrastructure comprising three distinct seamless steel pipe production lines, each dedicated to excellence and precision.
Wuxi Tongno Special Steel Co., Ltd. is firmly rooted in its guiding principles of 'quality first, customer first.' This philosophy ensures that our products stand out in the market with high precision, a vast array of wall thicknesses, and diverse varieties available in even the smallest quantities at a rapid pace. Domestically, our prowess in producing small-diameter medium-thick-walled and large-caliber thin-walled alloy seamless steel pipes is unmatched, earning us a stellar reputation both nationally and internationally. Our products are favored for numerous project constructions, showcasing our unique manufacturing capabilities and energy.
1. Exceptional Customer Service: We promise swift responses to every inquiry within a remarkable 12-hour window.
2. Prestigious Certifications: We proudly showcase our esteemed ISO 9001, CE, and SGS certifications, affirming our commitment to quality.
3. Cost-Effective Excellence: Enjoy the dual benefits of competitive pricing and superior quality, as our products are sourced directly from our proprietary factory.
4. Impressive Production Capacity: Boasting a robust monthly output of 20,000 tons, we ensure a truly seamless production process.
5. Flexible Payment Options: We accommodate a wide range of payment methods, including T/T and L/C, for your convenience.
6. Rapid Delivery & International Standard Packaging: Anticipate prompt delivery coupled with products packaged to meet rigorous international export standards.
7. Factory-Direct Benefits: Our exclusive factory operations empower us to provide competitive pricing without sacrificing quality excellence.
8. Independent Third-Party Testing: We wholeheartedly welcome third-party assessments to validate the exceptional quality of our products.
9. Expert Team Assistance: Supported by a dedicated and professional sales team alongside a dependable factory infrastructure.
10.Commitment to Customization: Your unique specifications aren't just welcomed; they're the cornerstone of our service commitment, ensuring fulfillment of every custom request with precision.
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