| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Warranty: | One Year |
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Standard:
GB6479-A distinguished China National Standard
Uses:
These seamless steel pipes are specifically designed for use in high-pressure fertilizer equipment and pipelines, providing reliability and durability.
Main production steel pipe grades:
10, 20, 16Mn, 10MoWVNb, 12CrMo,15CrMo, 1Cr5Mo, 12Cr2Mo and 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. Our steel tubes are carefully encased in export sea-worthy packaging, complemented by a protective layer of waterproof paper to ensure pristine condition upon arrival.
2. Our expert teams provide professional loading and secure fixing, guaranteeing the safety and integrity of our shipments.
Delivery Detail: Expect swift delivery within 7-10 working days post-deposit, or customized timing tailored to your order quantity.
Wuxi Tongno Special Steel Co., Ltd. was established in 2013 with a registered capital of 5 million yuan. We are a dedicated manufacturer of seamless steel pipes, renowned for our rapid growth and innovation. Over the years, Wuxi Tongno Special Steel Co., Ltd. has expanded to operate three cutting-edge seamless steel pipe production lines.
Our main products are crafted to meet standards and materials like GB/T8163, GB5310, GB6479, GB9948 in 10#, 20#, 16Mn, 15CrMo, 1Cr5Mo, 1Cr9Mo, 12Cr1MoV, 12Cr2Mo, 10Cr9Mo1VNbN, APT5LPSL1, PSL2, B-X80, API5CTJ55, K55, N80Q, L80-1, ASTM/ASME SA106B, C, A335 P11, P12, P22, P5, P9, P91, A333 Gr.1, Gr.6, Gr.3, as well as a diverse range of gas cylinder steel pipes such as 34CrMo4, 30CrMo, 35CrMo, drill pipe, weighting drill pipes, and drill collar materials including 26CrMo, 42CrMo, 40Mn2, E75, X95, G105, S135, A519 1340, 4145H, 4137. Our versatile products cater to industries ranging from mechanical structures, power generation, petroleum, chemicals, automotive to construction, and beyond.
Wuxi Tongno Special Steel Co., Ltd. embraces the business philosophy of 'quality first, customer first,' ensuring high-precision products with a vast array of wall thicknesses, catering to small batches and diverse varieties with swift production. Our domestic sales are at an advanced level, particularly excelling in small-diameter medium-thick-walled and large-calibre thin-walled alloy seamless steel pipes. Our products enjoy a sterling reputation both domestically and internationally, contributing significantly to various construction projects with our manufacturing prowess.
1. Exceptional & Timely Service: We ensure that every inquiry receives a prompt and thorough response within just 12 hours.
2. Prestigious Certifications: We're proud holders of ISO 9001, CE, and SGS certifications, underscoring our commitment to quality and excellence.
3. Cost-Efficient Excellence: Experience the perfect blend of competitive pricing and premium quality, thanks to our direct factory sourcing.
4. Impressive Production Capacity: Boasting a robust monthly output of 20,000 tons, we guarantee seamless and uninterrupted production.
5. Flexible & Convenient Payment Terms: Enjoy the convenience of various payment methods, including T/T and L/C, tailored to suit your needs.
6. Rapid Delivery & Standardized Export Packaging: Anticipate swift delivery, with all products meticulously packaged to meet international export standards.
7. Unique Factory-Direct Advantage: Our direct factory operations enable us to offer unparalleled prices, while maintaining top-tier quality.
8. Reliable Third-Party Testing: We fully support any third-party testing to independently verify our product quality.
9. Expert Team Guidance & Support: Our professional sales team and dependable factory are here to support your needs.
10.Commitment to Customization Excellence: Your specific requirements are more than welcome-they're the foundation of our bespoke service. We're dedicated 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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