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Seamless 316L EP Stainless Steel Pipe With Low Surface Roughness
Product Spotlights
Manufacturer-offered seamless 316L stainless steel pipe featuring an electropolished (EP) finish for exceptionally low surface roughness. Ideal for high-purity applications in semiconductor, pharmaceutical, and biotech industries, it ensures superior corrosion resistance, minimizes contamination risk, and enhances flow efficiency. Customizable dimensions and certifications available to meet specific project requirements.
US$ 1.2 - 6.5
MOQ: 100 Kilograms
Key Specifications
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Material:
Other, 316L Stainless Steel
Surface Finish:
Electropolished (EP)
Surface Roughness (Ra):
Low Ra value, customizable
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
15 days
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Material
Other, 316L Stainless Steel
Surface Finish
Electropolished (EP)
Surface Roughness (Ra)
Low Ra value, customizable
Connection Type
Seamless, welded ends optional
Application
High-purity fluid systems, semiconductor, pharmaceutical
Standard
ASTM A312, A269, A213
Certification
ISO 9001, ISO 14001 available
Customization
Length, diameter, wall thickness customizable
As a leading manufacturer since 2017, Wuxi Yansheng Technology Co., Ltd. specializes in producing high-precision stainless steel components for demanding global industries. Our Seamless 316L EP Stainless Steel Pipe with Low Surface Roughness represents the pinnacle of our manufacturing expertise, engineered to meet the stringent requirements of high-purity fluid handling systems. This product is crafted to deliver exceptional corrosion resistance, superior surface integrity, and reliable performance in critical applications, helping our partners in North America, Europe, Asia, and beyond achieve operational excellence and product purity.
The core value of this seamless pipe lies in its combination of premium 316L stainless steel material and an advanced Electropolishing (EP) process. This results in a microscopically smooth surface that minimizes particulate generation, prevents bacterial adhesion, and ensures optimal flow characteristics. Manufactured in our 1,000-3,000 square meter facility by a skilled team of 101-200 professionals, each pipe undergoes rigorous quality control to guarantee consistency and reliability for your most sensitive processes.
Key Product Features & Technical Advantages:
- Superior Material: Constructed from AISI 316L stainless steel, offering enhanced resistance to chlorides and acidic environments compared to standard 304/304L grades, which is crucial for pharmaceutical and semiconductor applications.
- Advanced Surface Treatment: The electropolishing (EP) process not only creates an ultra-smooth finish but also passivates the surface, forming a durable chromium oxide layer that enhances corrosion resistance.
- Contamination Control: The low surface roughness (Ra) significantly reduces the potential for particle shedding, bacterial colonization, and product adhesion, ensuring fluid purity.
- Seamless Construction: Eliminates the longitudinal weld seam found in welded pipes, removing a potential source of contamination, weakness, and corrosion initiation.
- Customizable Specifications: Available in a wide range of outer diameters, wall thicknesses, and lengths to suit specific system designs. Custom end finishes (beveled, square cut) are also available upon request.
- Consistent Quality: Produced under a stringent quality management system, ensuring dimensional accuracy, mechanical properties, and surface finish meet specified standards batch after batch.
Technical Specifications & Parameters:
| Parameter | Specification / Typical Value |
| Material Grade | AISI 316L (UNS S31603) |
| Manufacturing Process | Seamless, Cold Drawn / Cold Rolled |
| Surface Finish | Electropolished (EP) |
| Surface Roughness (Ra) | Customizable, typically < 0.4 μm (16 μin) |
| Common Standards | ASTM A312, ASTM A269, ASTM A213 |
| Outer Diameter Range | 1/8" to 12" (or metric equivalents), customizable |
| Wall Thickness | Schedule 5S to Schedule 80, customizable |
| Length | Random lengths (18-24 ft) or cut-to-length |
Benefits for Your Business:
- Enhanced System Reliability: Minimizes risk of corrosion failure and contamination, leading to less downtime and maintenance.
- Improved Product Yield & Purity: Critical for industries like biopharma and microelectronics where product integrity is paramount.
- Long-Term Cost Efficiency: The durability and cleanability of the EP surface can reduce cleaning cycles, extend system life, and lower total cost of ownership.
- Regulatory Compliance Support: The cleanable surface and material traceability aid in meeting cGMP, FDA, SEMI, and other industry guidelines.
- Global Supply Chain Confidence: With an annual export value between US$50-100 Million and major ports like Shanghai and Tianjin as shipment points, we ensure timely and reliable delivery to markets worldwide.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a seamless pipe over a welded one for high-purity applications?
A: Seamless pipes have no longitudinal weld seam, which is a potential weak point for corrosion, contamination trapping, and particle generation. This makes them preferable for critical fluid systems. -
Q: How does electropolishing (EP) differ from mechanical polishing?
A: Electropolishing is an electrochemical process that removes a thin layer of surface material uniformly, leveling micro-peaks and creating a smoother, more passive, and more corrosion-resistant surface compared to mechanical abrasion. -
Q: Can you provide specific Ra (Roughness Average) values for the pipe surface?
A: Yes, surface roughness is customizable. Typical Ra values for our EP pipes can be achieved as low as 0.25 μm (10 μin) or lower upon request, depending on the starting condition and application requirements. -
Q: Is 316L suitable for handling ultra-pure water (UPW) or aggressive chemicals?
A: Yes, 316L is a common choice for UPW systems and many chemical processes due to its low carbon content (reducing sensitization risk) and excellent resistance to a wide range of corrosives, including chlorides. -
Q: Do you provide material certifications and test reports?
A> We can provide standard material test reports (MTRs) per ASTM A999, which include chemical composition and mechanical properties. Additional certification like 3.1 material certificates are available upon request. -
Q: What end connections or fittings are compatible with your pipes?
A> Our pipes are compatible with standard butt weld, socket weld, or tube fitting systems (e.g., Swagelok, Parker). We can supply pipes with beveled ends for welding or other custom end preparations. -
Q: What is your minimum order quantity (MOQ) and lead time?
A> MOQ and lead time depend on the specific diameter, wall thickness, and quantity. We offer flexibility for both trial orders and large-volume projects. Please contact us with your requirements for a precise quotation. -
Q: How do you ensure quality control during manufacturing?
A> Our production follows integrated management systems. We employ processes like ultrasonic testing, dimensional verification, surface roughness measurement, and visual inspection to ensure every pipe meets specified standards.
Backed by our robust manufacturing capabilities, a portfolio of management system certifications including ISO 9001, and a proven track record of serving diverse markets from North America to Southeast Asia, Wuxi Yansheng Technology stands as a reliable partner for your high-performance piping needs. Our Seamless 316L EP Stainless Steel Pipe is more than just a component; it's an investment in the purity, efficiency, and longevity of your critical processes. Choose a supplier with the expertise and scale to support your global operations. Contact us today to discuss your specifications, request samples, or receive a detailed quotation tailored to your project.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2025
Factory Size
1,000-3,000 square meters
Annual Export Value
US$50 Million - US$100 Million
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