| Customization: | Available |
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| After-sales Service: | 24h Online |
| Type: | Seamless/Welded |
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Standard:
GB/T 3639 -- Chinese National Standard
DIN 2391 -- Standards for steel tubes issued by the German Organization for Standardization (DIN)
EN 10305-1 -- European Organization for Standardization (CEN) standards
Main production steel pipe grades: St35,St45,St52,E235,E355
Chemical composition:
| Grade | Chemical Components(%) | |||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | |
| St35 | 0.17~0.23 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | |||
| St45 | 0.42~0.50 | 0.17~0.37 | 0.50~0.80 | |||||
| St52 | ≤0.20 | ≤0.50 | ≤0.040 | ≤0.040 | ||||
| E235 | ≤0.22 | ≤1.6 | ≤0.025 | ≤0.025 | ||||
| E355 | ≤0.22 | ≤1.6 | ≤0.025 | ≤0.025 | ||||
Mechanical properties:
| Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
| St35 | 360~510 | ≥235 | ≥21 |
| St45 | ≥520 | ≥375 | ≥12 |
| St52 | 490~630 | ≥355 | ≥18 |
| E235 | ≥480 | ≥235 | ≥25 |
| E355 | ≥490 | ≥355 | ≥22 |
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. 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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