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Wuxi Yansheng Technology Co., Ltd., established in 2017, is a professional manufacturer specializing in stainless steel tubular products. With a factory spanning 1,000–3,000 square meters and over 100 skilled employees, we deliver high-quality seamless stainless steel heat exchange tubes that meet rigorous industrial demands. Our Seamless Stainless Steel Heat Exchange Tube 304/316L is engineered for superior anti-corrosion performance and efficient heat transfer, making it the ideal choice for condensers, boilers, and various heat exchanger systems. Backed by an annual export value of US$50–100 million, we ensure consistent quality and global reliability.
Key Features & Technical Specifications
Material Grades: Available in 304 and 316L stainless steel, offering excellent resistance to corrosion, oxidation, and pitting — suitable for harsh environments like chemical processing and marine applications.
Seamless Construction: Manufactured via cold-drawn or cold-rolled processes, ensuring a uniform wall thickness, no weld seams, and enhanced pressure integrity.
Anti-Corrosion Surface: Surface treatments include annealing, pickling, and bright finishing, which remove impurities and enhance the passive layer for long-term durability.
Customizable Dimensions: Outer diameter from 6mm to 219mm, wall thickness from 0.5mm to 20mm, and lengths up to 12 meters — all customizable to your specific heat exchanger design.
High Thermal Conductivity: The 304/316L alloy provides reliable heat transfer efficiency, reducing energy loss and optimizing system performance.
Quality Certifications: Our factory holds ISO9001, ISO14000, OHSAS18001, and other management system certifications, ensuring consistent quality control and traceability.
Typical Parameters (Reference)
| Parameter | Range / Value |
|---|---|
| Material Grade | 304, 316L |
| Outer Diameter (OD) | 6 mm – 219 mm |
| Wall Thickness (WT) | 0.5 mm – 20 mm |
| Length | Up to 12,000 mm (customizable) |
| Surface Finish | Annealed, Pickled, Bright |
| Tensile Strength (min.) | 515 MPa (304) / 485 MPa (316L) |
| Yield Strength (min.) | 205 MPa (304) / 170 MPa (316L) |
| Corrosion Resistance | Excellent in acidic & chloride environments |
Advantages for Your Application
Extended Service Life: The anti-corrosion properties of 316L reduce maintenance frequency, especially in seawater or chemical plants.
Enhanced Heat Transfer: Seamless design eliminates weld defects, ensuring uninterrupted flow and consistent thermal performance.
Cost-Effective: Our competitive pricing combined with high durability lowers total cost of ownership over the equipment lifespan.
Flexible Ordering: We accept small to large quantities, with lead times tailored to your project schedule.
Global Logistics: Shipments from Tianjin, Shanghai, Qingdao, or Ningbo ports ensure fast delivery to major markets worldwide.
Why Choose Wuxi Yansheng Technology?
As a specialized manufacturer with 101–200 employees and a 1,000–3,000 m² factory, we have built a strong reputation across North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our annual export value of US$50–100 million reflects the trust our global clients place in our products. We strictly adhere to ISO9001, ISO14000, and OHSAS18001 management systems, ensuring every tube meets your exact specifications. Additionally, we hold certifications such as HACCP, TL900, QS9000, SA8000, and more, demonstrating our commitment to quality, safety, and social responsibility. Contact us today for a quote or sample — let our seamless stainless steel heat exchange tubes power your next project.
Frequently Asked Questions
Q: What is the difference between 304 and 316L for heat exchange tubes?
A: 316L contains molybdenum, providing superior resistance to chlorides and acids, making it ideal for marine or chemical applications. 304 is suitable for less corrosive environments and is more cost-effective.Q: Can you supply tubes with non-standard dimensions?
A: Yes, we offer fully customizable outer diameters, wall thicknesses, and lengths. Please provide your requirements for a tailored solution.Q: What surface finishes are available?
A: We offer annealed, pickled, and bright finishes. The choice depends on your application needs — pickled finish ensures good corrosion resistance, while bright finish provides a smooth aesthetic.Q: How do you ensure the tubes are free from defects?
A: Each tube undergoes rigorous testing including hydrostatic testing, eddy current inspection, and dimensional checks. Our ISO9001-certified quality system guarantees traceability.Q: What is the typical lead time?
A: For standard sizes, lead time is 15–25 days. Custom orders may require 25–35 days, depending on quantity and specifications.Q: Do you provide samples for testing?
A: Yes, we offer free samples (customer pays shipping) for evaluation. Contact our sales team to arrange.Q: Can these tubes be used in high-pressure heat exchangers?
A: Absolutely. The seamless construction and high tensile strength make them suitable for high-pressure applications. Please provide your pressure rating for validation.Q: What payment terms do you accept?
A: We accept T/T, L/C, and other negotiable terms. For first-time orders, a 30% deposit is typically required.
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