| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | One Year |
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Standard:
GB6479--China National Standard
Uses:
Engineered for excellence, these seamless steel pipes are your go-to solution for high-pressure fertilizer equipment and pipeline applications.
Main production steel pipe grades:
10, 20, 16Mn, 10MoWVNb, 12CrMo,15CrMo, 1Cr5Mo, 12Cr2Mo and more, ensuring a versatile range for diverse needs.
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. Our export packaging is robust and sea-worthy, ensuring your ASME Certified Seamless Steel Tubes for High Pressure arrive in pristine condition. Each package is carefully wrapped with waterproof paper, creating a barrier against moisture and environmental challenges.
2. Our professional teams are experts in safe loading and fixing. They meticulously handle each tube, ensuring secure placement and stability during transport, so your custom thickness steel tubes reach their destination without a hitch.
Delivery Detail: Expect swift delivery within 7-10 working days upon receipt of your deposit. We pride ourselves on flexibility and efficiency, adjusting timelines based on your specific order quantity to meet your needs promptly.
Wuxi Tongno Special Steel Co., Ltd. Established in 2013 with a robust registered capital of 5 million yuan, Wuxi Tongno Special Steel Co., Ltd. has swiftly ascended as a specialist in seamless steel pipe manufacturing. With years of rapid expansion, Wuxi Tongno now boasts three state-of-the-art seamless steel pipe production lines.
Our company adheres to rigorous standards, producing premium materials such as GB/T8163, GB5310, GB6479, GB9948 across various grades like 10#, 20#, 16Mn, 15CrMo, and more. Our diverse product lineup includes API and ASTM certified pipes: APT5LPSL1, PSL2, B-X80, API5CTJ55, K55, N80Q, L80-1, ASTM/ASME A/SA106B, C, A335 P11, P12, P22, P5, P9, P91, A333 Gr1, Gr.6, Gr.3, plus an extensive range of specialized pipes including gas cylinder steel, drill pipes, and more. These exceptional products find widespread applications in sectors like mechanical engineering, electric power, petroleum, chemical industries, automotive, construction, and beyond.
Wuxi Tongno Special Steel Co., Ltd. remains steadfast in its commitment to a 'quality first, customer first' philosophy. This ensures the production of high-precision pipes with a broad range of wall thicknesses, catering to varied demands with small batch versatility and rapid delivery. Our domestic leadership is particularly evident in producing small-diameter, medium-thick-walled, and large-calibre thin-walled alloy seamless steel pipes. Esteemed both nationally and internationally, our products are highly regarded for their reliability in diverse construction projects, exemplifying our manufacturing excellence.
1. Exceptional Service: We promise to address all inquiries with swift efficiency, guaranteeing a response within an impressive 12 hours.
2. Certifications: We are proud to maintain the prestigious ISO 9001, CE, and SGS certifications, reflecting our commitment to excellence.
3. Cost-Effective Quality: Experience superior value with competitive pricing and exceptional quality, thanks to direct sourcing from our fully-owned factory.
4. Robust Production Capacity: Our impressive production facilities ensure a steady monthly output of 20,000 tons, guaranteeing seamless and uninterrupted supply.
5. Flexible Payment Terms: We offer a variety of payment options, including T/T and L/C, to accommodate your specific needs.
6. Swift Delivery & Standard Export Packaging: Benefit from prompt delivery and our commitment to packaging that meets rigorous international export standards.
7. Factory-Direct Advantage: Our dedicated factory ensures that we deliver competitive prices while maintaining the highest quality standards.
8. Third-Party Testing: We openly welcome any third-party evaluations to authenticate the superior quality of our products.
9. Expert Team Support: Rely on our expert sales team and dependable factory support to meet your needs efficiently and effectively.
10.Dedicated to Customization: Your specific needs are not just considered-they are the foundation of our service. We are devoted to fulfilling all your customization demands.
√ 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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