| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | One Year |
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Standard:
GB6479--China National Standard
Uses:
Our seamless steel pipes are expertly designed for high pressure fertilizer equipment and pipelines, ensuring exceptional performance under demanding conditions.
Main production steel pipe grades:
Our production line includes a range of steel pipe grades such as 10, 20, 16Mn, 10MoWVNb, and 12CrMo, ensuring a perfect match for your specific needs.,Additionally, we offer 15CrMo, 1Cr5Mo, 12Cr2Mo, and more, each meticulously crafted to perfection.
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 Package Enhanced with Water-Proof Paper: Ensuring that each High Pressure Seamless Steel Tube arrives in pristine condition, our export packages are meticulously designed to withstand the rigors of sea transport. Complemented with water-proof paper, your product is shielded from the elements every step of the journey.
2. Safe Loading and Secure Fixing by Professional Teams: Entrust the handling of your valuable cargo to our experienced professionals. Our teams ensure that each tube is safely loaded and securely fixed, minimizing any risk of damage during transit.
Delivery Detail: Expect prompt delivery within 7-10 working days after receiving the deposit, or according to your specific order quantity. We are committed to meeting your deadlines with efficiency and precision.
Wuxi Tongno Special Steel Co., Ltd. established in 2013 with a registered capital of 5 million yuan, is a dedicated enterprise in the realm of seamless steel pipe manufacturing. Over the years, Wuxi Tongno Special Steel Co., Ltd. has accelerated its growth to now operate three sophisticated seamless steel pipe production lines.
Our company is distinguished by its adherence to top-tier product standards and materials such as: GB/T8163, GB5310, GB6479, and GB9948 encompassing materials like 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, and a variety of gas cylinder steel pipes including 34CrMo4, 30CrMo, 35CrMo, alongside drill pipe, drill pipe weighting, drill collar pipe body materials like 26CrMo, 42CrMo, 40Mn2, E75, X95, G105, S135, A519 1340, 4145H, 4137, etc. Our exceptional products find applications across diverse sectors including mechanical structures, electric power, petroleum, the chemical industry, automobile manufacturing, construction, and more.
Wuxi Tongno Special Steel Co., Ltd. is committed to the business philosophy of 'quality first, customer first.' This ensures our products excel in high precision, a broad range of wall thicknesses, and the ability to cater to small orders across numerous varieties with rapid production capabilities. Our sales reach the forefront of the domestic market, particularly excelling in the domain of small-diameter medium-thick-walled and large-calibre thin-walled alloy seamless steel pipes. Our products are acclaimed both domestically and internationally, perfectly serving various construction projects and manufacturing demands with distinctive energy and prowess.
1. Exceptional Service: We are committed to providing exceptional service by ensuring that all inquiries receive a prompt and thorough response within 12 hours.
2. Certifications: We proudly hold a suite of prestigious certifications including ISO 9001, CE, and SGS, showcasing our dedication to maintaining the highest quality standards.
3. Cost - Effective Quality: Embrace the perfect blend of competitive pricing and exceptional quality, thanks to our products being directly sourced from our very own factory, ensuring efficiency and excellence.
4. Robust Production Capacity: Our strong production capability allows us to maintain a seamless operation with a substantial monthly output of 20,000 tons, ensuring your needs are consistently met.
5. Flexible Payment Terms: We offer the flexibility of various payment methods, including T/T and L/C, to facilitate a smooth and convenient transaction process for our valued clients.
6. Swift Delivery & Standard Export Packaging: We guarantee quick and efficient delivery, with products packaged adhering to rigorous international export standards to ensure safety and integrity.
7. Factory - Direct Advantage: By leveraging our factory-direct operations, we deliver competitive pricing while steadfastly maintaining superior quality standards that set us apart.
8. Third - Party Testing: We openly encourage and welcome third-party testing as a testament to the unwavering quality and reliability of our products, offering transparent assurance.
9. Expert Team Support: Our professional sales team, coupled with our dependable factory operations, provides robust support, ensuring your satisfaction and success.
10.Dedicated to Customization: Your specific needs and specifications are not only welcomed but are the driving force behind our tailored services, emphasizing our commitment to fulfilling every customized 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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