| Customization: | Available |
|---|---|
| After-sales Service: | 24h Online |
| Type: | Seamless/Welded |
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Standards:
China Classification Society (CCS) Material and Welding Code - China Classification Society (CCS)
Det Norske Veritas (DNV) Code - Det Norske Veritas (DNV)
Lloyd's Register (LR) Code - Lloyd's Register (LR)
Germanischer Lloyd (GL) Code - Germanischer Lloyd (GL)
American Bureau of Shipping (ABS) Code - American Bureau of Shipping (ABS)
Bureau Veritas (BV) Code - Bureau Veritas (BV)
Italian Classification Society (RINA) Code - Italian Classification Society (RINA)
Japan Classification Society (NK) Code - Japan Classification Society (NK)
GB/T5312--Chinese national standard
Uses:
Used for the manufacture of seamless steel pipes for marine boilers and superheaters and Class I and II pressure pipe systems.
Main production steel pipe grades:
320, 360, 410, 460, 490, etc.
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% |
| Standard | Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
| GB/T5312 | 320 | 320~410 | ≥195 | ≥25 |
| 360 | 360~480 | ≥215 | ≥24 | |
| 410 | 410~530 | ≥235 | ≥22 | |
| 460 | 460~580 | ≥265 | ≥21 | |
| 490 | 490~610 | ≥285 | ≥21 |
| Standard | Grade | Chemical Components(%) | ||||
| C | Si | Mn | P | S | ||
| GB/T5312 | 320 | ≤0.16 | ≤0.35 | 0.40~0.70 | ≤0.035 | ≤0.035 |
| 360 | ≤0.17 | ≤0.35 | 0.40~0.80 | ≤0.035 | ≤0.035 | |
| 410 | ≤0.21 | ≤0.35 | 0.40~1.20 | ≤0.035 | ≤0.035 | |
| 460 | ≤0.22 | ≤0.35 | 0.80~1.40 | ≤0.035 | ≤0.030 | |
| 490 | ≤0.23 | ≤0.35 | 0.80~1.50 | ≤0.035 | ≤0.030 | |
Remarks: Residual elements Cr≤0.25%, Mo≤0.10%, Ni≤0.30%, Cu≤0.30% Total≤0.70
1.Export sea worthy package + water proof paper
2.Safe loading and fixing Professional teams
Delivery Detail: within 7-10 working days after receiving the deposit or according to your order quantity.
Wuxi Tongno Special Steel Co., Ltd. was founded in 2013, the registered capital of 5 million yuan, for the professional production of seamless steel pipe manufacturing enterprises; after years of rapid development, Wuxi Tongno Special Steel Co., Ltd. now has three types of seamless steel pipe production line;
Wuxi Tongno Special Steel Co., Ltd. has been adhering to the 'quality first, customer first' business philosophy, to ensure that the products of high-precision, wide range of wall thicknesses, small quantities of many varieties, fast-paced characteristics of the production, sales in the domestic advanced level, especially in the small-diameter medium-thick-walled and large-calibre thin-walled alloy seamless steel pipe production at the domestic advanced level. Products at home and abroad enjoy a reputation for a variety of project construction, play their own characteristics of manufacturing energy.
1. Exceptional Service: We guarantee a response to all inquiries within 12 hours.
2. Certifications: Proudly holding ISO 9001, CE, and SGS certifications.
3. Cost - Effective Quality: Benefit from competitive prices and top - notch quality, as our products are directly sourced from our own factory.
4. Robust Production Capacity: With a monthly output of 20,000 tons, we ensure seamless production.
5. Flexible Payment Terms: We accept various payment methods, including T/T and L/C.
6. Swift Delivery & Standard Export Packaging: Expect quick delivery and products packaged in line with international export standards.
7. Factory - Direct Advantage: Our own factory enables us to offer competitive prices without compromising on quality.
8. Third - Party Testing: We welcome any third - party testing to verify the quality of our products.
9. Expert Team Support: Backed by a professional sales team and a reliable factory.
10.Dedicated to Customization: Your individual specifications are not just accepted-they're the cornerstone of our service. We're committed to delivering on every customized request.
√ 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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