| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | One Year |
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Standard:
GB6479--China National Standard
Uses:
Specially designed for use as seamless steel pipes in high-pressure fertilizer equipment and pipeline systems, ensuring unparalleled performance and reliability.
Main production steel pipe grades:
10, 20, 16Mn, 10MoWVNb, 12CrMo,15CrMo, 1Cr5Mo, 12Cr2Mo and so on.
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 packages are designed to brave the high seas, featuring an enduring sea-worthy build complemented by durable waterproof paper, ensuring your High Pressure Seamless Steel Tubes arrive in pristine condition.
2. Safety is paramount in loading and fixing, a task entrusted to our expert teams who ensure each tube is securely fastened and protected for its journey to you.
Delivery Detail: Expect swift delivery within 7-10 working days post-deposit, though our timelines may flex slightly to accommodate your unique order quantity, ensuring efficiency and satisfaction.
Wuxi Tongno Special Steel Co., Ltd. was founded in 2013 with a proud registered capital of 5 million yuan. We specialize in the professional manufacturing of seamless steel pipes. Following years of dynamic and rapid development, Wuxi Tongno Special Steel Co., Ltd. now boasts three state-of-the-art seamless steel pipe production lines;
Our distinguished company adheres to the highest standards and utilizes a diverse range of materials: GB/T8163, GB5310, GB6479, GB9948 in 10#, 20#, 16Mn, 15CrMo, 1Cr5Mo, 1Cr9Mo, 12Cr1MOV, 12Cr2Mo, 10Cr9Mo1VNbN, APT5L PSL1, PSL2, B-X80, API5CT J55, K55, N80Q, L80-1, ASTM/ASME A/SA106B, C, A335 P11, P12, P22, P5, P9, P91, A333 Gr.1, Gr.6, Gr.3, and a complete array of gas cylinder steel pipes such as 34CrMo4, 30CrMo, 35CrMo. Further, our extensive inventory includes drill pipes, drill pipe weighting, drill collar pipe body material including 26CrMo, 42CrMo, 40Mn2, E75, X95, G105, S135, A519 1340, 4145H, 4137, and more. These robust and reliable products find extensive applications across various sectors like mechanical structure, electric power, petroleum, chemical industry, automobile, construction, and beyond.
Wuxi Tongno Special Steel Co., Ltd. upholds a steadfast commitment to our business philosophy of 'quality first, customer first.' We assure our clients of high-precision products with a wide range of wall thicknesses, catering to small quantities with an extensive variety. Our production pace is swift and matches the advanced domestic standards. Particularly, our expertise in producing small-diameter medium-thick-walled and large-calibre thin-walled alloy seamless steel pipes sets us apart at the forefront of domestic technology. Our esteemed products enjoy a sterling reputation both at home and abroad, contributing significantly to various construction projects and showcasing our manufacturing prowess.
1. Unmatched Customer Service: We promise a lightning-fast response to all inquiries within just 12 hours, ensuring your needs are prioritized at all times.
2. Comprehensive Certifications: We are proud bearers of ISO 9001, CE, and SGS certifications, assuring you of our commitment to quality and industry standards.
3. Affordable Excellence: Enjoy the dual benefits of highly competitive prices and superior quality. Our seamless steel tubes are sourced directly from our state-of-the-art factory.
4. Powerful Production Capability: Boasting a monthly production capacity of 20,000 tons, we provide a steady supply to meet your demands with ease.
5. Versatile Payment Solutions: We offer flexible payment options, including T/T and L/C, tailored to suit your financial preferences.
6. Rapid Delivery & Global Standard Packaging: Experience swift delivery alongside packaging that adheres to international export criteria, ensuring the safe arrival of your products.
7. Direct From Factory Perks: With direct access to our manufacturing facilities, we offer you the finest quality at competitive prices.
8. Quality Assurance Through Third-Party Testing: We encourage independent third-party testing to affirm the impeccable quality of our products, bolstering your confidence in our offerings.
9. Expert Team Collaboration: Our professional sales team, supported by our reliable factory, is dedicated to providing you with unparalleled service.
10.Commitment to Personalization: Your unique specifications are not just accepted-they form the foundation of our service. We are devoted to fulfilling every customized request with precision.
√ 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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