| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | 1 Year |
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Standard:
API SPEC 5L--This standard by the American Petroleum Institute ensures our pipes meet international criteria for performance and safety.
GB/T9711--As per the China National Standard, our pipes conform to strict national quality benchmarks.
Uses:
Perfectly suited for the rigorous demands of the oil and gas industry, our pipes excel in transporting essential resources like oxygen, water, and oil efficiently and safely.
Main production steel pipe grades:
L245 / Gr.B, L290 / X42, L320 / X46, L360 / X52, L390 / X56, L415 / X60, L450 / X65, L485 / X70 - A versatile selection of grades designed to meet diverse industry needs and specifications.
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 meticulously wrapped in an export sea-worthy package, accompanied by a durable waterproof paper to ensure your product arrives in pristine condition.
2. Our expert professional teams are dedicated to safe loading and fixing, guaranteeing that your shipment is secure and handled with utmost care throughout the transportation process.
Delivery Detail: Your order will be dispatched swiftly within 7-10 working days after receiving the deposit, or tailored to your specific order quantity, ensuring prompt and efficient delivery.
Wuxi Tongno Special Steel Co., Ltd. was established in 2013 with a registered capital of 5 million yuan, dedicated to the specialized production of seamless steel pipes. As a dynamic enterprise, Wuxi Tongno Special Steel Co., Ltd. proudly operates three cutting-edge seamless steel pipe production lines;
Wuxi Tongno Special Steel Co., Ltd. has consistently embraced the philosophy of 'quality first, customer foremost', ensuring the production of high-precision products with a vast array of wall thicknesses and various small-quantity options. Our efficient production capabilities are recognized domestically, particularly excelling in small-diameter, medium-thick-walled, and large-caliber thin-walled alloy seamless steel pipes, which are leading in the industry. Renowned both nationally and internationally, our products are sought after for diverse construction projects, showcasing our distinctive manufacturing expertise and reliability.
1. Exceptional Service: We promise to address all your inquiries swiftly, with a guaranteed response time of within 12 hours.
2. Prestigious Certifications: We proudly possess ISO 9001, CE, and SGS certifications, showcasing our commitment to excellence.
3. Cost-Effective Quality: Enjoy the perfect blend of competitive pricing and premier quality, as our products are sourced directly from our dedicated factory.
4. Robust Production Capacity: Our production prowess is evident with a remarkable monthly output of 20,000 tons, ensuring uninterrupted supply.
5. Flexible Payment Terms: We offer a spectrum of payment methods including T/T and L/C to accommodate your preferences.
6. Swift Delivery & Standard Export Packaging: Experience the assurance of rapid delivery, complemented by packaging that meets international export standards.
7. Factory-Direct Advantage: Our direct factory operations empower us to provide competitive prices without any compromise on quality.
8. Third-Party Testing Encouraged: We invite any third-party testing to validate the superior quality of our products, ensuring transparency and reliability.
9. Expert Team Support: Our operations are supported by a professional sales team and a robust factory, ensuring seamless service.
10.Tailored Customization: Your specific requirements are not only welcomed but are the essence of our service. We are dedicated to fulfilling every customized demand with precision.
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