| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | One Year |
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Standard:
GB6479--China National Standard
Uses:
Specially designed for high pressure fertilizer equipment and pipeline applications, these seamless steel pipes promise unmatched performance.
Main production steel pipe grades:
Our diverse range includes top-notch grades such as 10, 20, 16Mn, 10MoWVNb, and 12CrMo,alongside 15CrMo, 1Cr5Mo, 12Cr2Mo, and many more.
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) | |
| Cold Drawn Pip | >30~50 | ±0.3 | ≤30 | ±10% |
| >50~219 | ±0.8% | |||
| Hot Rolled Pipe | >219 |
±1.0% | >20 | ±10% |
Mechanical properties:
| Standard | Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) | Impact work (J) | Brinell hardness (HB) |
| GB6479 | 10 | 335~490 | ≥205 | ≥24 | / | -20ºC≥18 |
| 20 | 410~550 | ≥245 | ≥24 | ≥39 | -20ºC≥18 | |
| 16Mn | 490~670 | ≥320 | ≥21 | ≥47 | -40ºC≥21 | |
| 10MoWVNb | 470~670 | ≥295 | ≥19 | ≥62 | ||
| 12CrMo | ≥410 | ≥265 | ≥24 | ≥78 | / | |
| 15CrMo | 440~640 | ≥235 | ≥21 | ≥47 | ||
| 1Cr5Mo | 390~590 | ≥195 | ≥22 | ≥94 | ||
| 12 Cr2Mo | 450~600 | ≥280 | ≥20 | ≥38 |
Chemical composition:
| Standard | Grade | Chemical Components(%) | |||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | ||
| GB 6479 |
10 | 0.07~0.14 | 0.17~0.37 | 0.35~0.65 | ≤0.030 | ≤0.030 | / | / | / |
| 20 | 0.17~0.24 | 0.17~0.37 | 0.35~0.65 | ≤0.030 | ≤0.030 | / | / | / | |
| 16Mn | 0.12~0.20 | 0.20~0.60 | 1.20~1.60 | ≤0.030 | ≤0.030 | ||||
| 10MoWVNb | 0.07~0.13 | 0.50~0.80 | 0.50~0.80 | ≤0.030 | ≤0.030 | / | 0.60~0.90 | / | |
| 12CrMo | 0.08~0.15 | 0.17~0.37 | 0.40~0.70 | ≤0.035 | ≤0.035 | 0.40~0.70 | 0.40~0.55 | ≤0.30 | |
| 15CrMo | 0.12~0.18 | 0.17~0.37 | 0.40~0.70 | ≤0.030 | ≤0.030 | 0.80~1.10 | 0.40~0.55 | / | |
| 1Cr5Mo | ≤0.15 | ≤0.50 | ≤0.60 | ≤0.030 | ≤0.030 | 4.00~6.00 | 0.45~0.60 | ≤0.60 | |
| 12 Cr2Mo | 0.80~0.15 | ≤0.50 | 0.40~0.70 | ≤0.030 | ≤0.030 | 2.0~2.50 | 0.90~1.20 | ||
1. Export Sea-Worthy Packaging: Our seamless steel tubes are meticulously encased in robust, export-grade packaging, enhanced with water-resistant paper to ensure maximum protection against the elements.
2. Safe Loading and Fixing: Entrust your shipment to our professional teams who are adept in secure loading and fixing techniques, ensuring your products arrive in pristine condition.
Delivery Detail: Anticipate swift delivery within 7-10 working days post-deposit receipt, tailored to your specific order volume for seamless scheduling.
Wuxi Tongno Special Steel Co., Ltd. was founded in 2013, with a registered capital of 5 million yuan, and has become a distinguished leader in the seamless steel pipe manufacturing sector. With years of unprecedented growth, Wuxi Tongno Special Steel Co., Ltd. now proudly operates three advanced seamless steel pipe production lines;
Our product range adheres to a variety of exacting standards and materials: GB/T8163, GB5310, GB6479, GB9948, encompassing 10 #, 20 #, 16Mn, 15CrMo, 1Cr5Mo, 1Cr9Mo, 12Cr1MOV, 12Cr2Mo, 10Cr9Mo1VNbN, APT5LPSL1, PSL2, B-X80 API5CTJ55, K55, N80Q, L80-1, ASTM/ASMEA/SA106B, C, A335 P11, P12, P22, P5, P9, P91, A333Gr1, Gr.6, Gr.3, plus various gas cylinder steel pipes such as 34CrMo4, 30CrMo, 35CrMo. Additionally, we produce drill pipes and components like drill collar pipe bodies with materials such as 26CrMo, 42CrMo, 40Mn2, E75, X95, G105, S135, A519 1340, 4145H, 4137, and more. Our products find extensive applications in mechanical structure, electric power, petroleum, chemical industry, automobile, construction, and other pivotal fields.
Wuxi Tongno Special Steel Co., Ltd. remains steadfast to its 'quality first, customer first' business ethos, guaranteeing products of unparalleled precision. We offer a remarkable selection of wall thicknesses, catering to both large and small quantities with agility. Our domestic leadership, particularly in the production of small-diameter, medium-thick-walled, and large-calibre thin-walled alloy seamless steel pipes, is renowned. Both domestically and internationally, our products are celebrated for their exceptional application across numerous construction projects, showcasing our manufacturing prowess and energy.
1. Outstanding Service Commitment: We ensure all inquiries receive a response within an impressive 12-hour timeframe.
2. Prestigious Certifications: We are proud to possess ISO 9001, CE, and SGS certifications, highlighting our unwavering commitment to quality and safety.
3. Cost-Effective Excellence: Enjoy the perfect blend of competitive pricing and superior quality, as all our products are sourced directly from our very own factory.
4. Impressive Production Capacity: With a remarkable monthly output of 20,000 tons, we guarantee a smooth and efficient production process.
5. Adaptable Payment Options: We offer various payment methods to suit your needs, including T/T and L/C.
6. Rapid Delivery & Premium Export Packaging: Count on swift delivery and products carefully packaged to meet international export standards.
7. Factory-Direct Pricing Edge: Our direct factory connections empower us to provide competitive pricing without compromising on the unparalleled quality you expect.
8. Quality Assurance through Third-Party Testing: We invite any third-party testing to validate the exceptional quality of our products.
9. Professional Team for Unmatched Support: Our expert sales team and dependable factory support are at your service to ensure a seamless experience.
10.Commitment to Customization Excellence: Your unique requirements are integral to our service. We are dedicated to fulfilling each customization request with precision and care.
√ Quality Assurance: Rigorous testing and certification
√Competitive Pricing: Cost-effective solutions without compromise
√ Reliable Delivery: On-time fulfillment guaranteed
√ Custom Solutions: Tailored to your exact specifications
√ Expert Support: Technical guidance at every stage
For further inquiries or specific requirements, please contact our sales team. We're committed to providing exceptional service and top-quality steel products for your projects.
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