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Precision Polished EP Finish Stainless Steel Tubing for Instrumentation

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Product Spotlights

Manufacturer-produced stainless steel tubing featuring a precision mechanical polish followed by an electropolished (EP) finish. This process creates an ultra-smooth, passive surface with superior corrosion resistance and cleanliness, ideal for sensitive instrumentation, medical, and hygienic applications. Available in grades 304, 316, and 316L with customizable dimensions and tight tolerances. Supports reliable performance in global markets with efficient logistics from major Chinese ports.
US$ 1.2 - 6.5 MOQ: 100 Kilograms
Key Specifications
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Material:
Other, Stainless Steel (Grades 304, 316, 316L)
Finish:
Precision Polished EP (Electropolished)
Outer Diameter Range:
3mm to 50mm (Customizable)
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
15 days
Material Other, Stainless Steel (Grades 304, 316, 316L)
Finish Precision Polished EP (Electropolished)
Outer Diameter Range 3mm to 50mm (Customizable)
Wall Thickness Range 0.5mm to 3mm (Customizable)
Length Standard lengths or cut to specification
Application Instrumentation, Medical, Semiconductor, Food & Beverage
Standard ASTM A269, ASTM A270 (Available)
Surface Roughness (Ra) ≤ 0.4 μm (Post EP)
Tolerance High precision dimensional tolerances

As a specialized manufacturer since 2017, Wuxi Yansheng Technology Co., Ltd. produces high-grade Precision Polished EP Finish Stainless Steel Tubing designed for critical instrumentation applications. Our tubing combines superior surface integrity with the hygienic and corrosion-resistant benefits of electropolishing, ensuring reliable performance in sensitive systems. With over 1,000-3,000 square meters of factory space and a dedicated team, we deliver tubing that meets the stringent demands of global industries, supporting an annual export value of US$50 Million - US$100 Million.

Our tubing is engineered to provide exceptional value through its unique characteristics and manufacturing precision.

  • Electropolished (EP) Finish: This process removes microscopic surface irregularities, creating a smooth, ultra-clean, and passive surface. It significantly enhances corrosion resistance, reduces adhesion of contaminants, and improves aesthetic appearance.

  • Precision Mechanical Polishing: Prior to electropolishing, the tubing undergoes meticulous mechanical polishing to achieve a uniform base surface, ensuring the EP finish is consistent and effective.

  • Material Excellence: We primarily use Austenitic stainless steel grades like 304, 316, and 316L, known for their excellent formability, corrosion resistance, and suitability for high-purity applications.

  • Critical Application Design: The tubing is specifically designed for instrumentation, flow systems, analytical equipment, and other applications where surface cleanliness, smooth fluid flow, and contamination control are paramount.

  • Customizable Dimensions: We offer a wide range of outer diameters and wall thicknesses, and tubing can be supplied in standard lengths or cut to your exact requirements.

  • High Dimensional Tolerance: Our manufacturing process ensures tight tolerances on outer diameter, inner diameter, and wall thickness, crucial for fitting compatibility and system integrity.

The technical specifications of our standard offering are summarized below. Custom specifications are available upon request.

Parameter Typical Range / Specification
Primary Materials Stainless Steel 304, 316, 316L
Standard Outer Diameter (OD) 3 mm - 50 mm
Standard Wall Thickness 0.5 mm - 3.0 mm
Surface Roughness (Ra) after EP ≤ 0.4 micrometer
Finish Process Mechanical Polish + Electropolish (EP)
Common Standards Referenced ASTM A269, ASTM A270
Key Application Areas Instrumentation, Pharmaceutical, Food & Beverage, Semiconductor

Choosing our Precision Polished EP Stainless Steel Tubing delivers concrete benefits:

  • Enhanced System Reliability: The ultra-smooth, contaminant-resistant surface minimizes friction, prevents particle shedding, and reduces the risk of blockages or contamination in sensitive instrumentation lines.

  • Superior Corrosion Resistance: The electropolishing process passivates the surface, forming a protective chromium-rich oxide layer that significantly improves resistance to corrosive environments.

  • Improved Cleanability: The non-porous, smooth finish allows for easier and more effective cleaning and sterilization, essential for hygienic industries.

  • Consistent Quality & Supply: Our established manufacturing base, supported by 101-200 employees and robust operational certifications, ensures consistent product quality and reliable supply chain performance.

  • Global Logistics Support: We ship from major ports like Tianjin, Shanghai, Qingdao, and Ningbo, facilitating efficient delivery to our main markets across North America, South America, Europe, Asia, Africa, and Oceania.

Wuxi Yansheng Technology is a trusted manufacturer with a proven track record. Our facility's adherence to multiple management system standards, including ISO9001 for quality and ISO14000 for environmental management, underpins our commitment to controlled and sustainable production. Our tubing is a product of this disciplined environment, designed to integrate seamlessly into your high-value instrumentation systems. With extensive export experience and a global client base, we understand the critical needs of international buyers. Let our precision tubing be the reliable component in your application. Contact us today to discuss your specifications or request samples.

Frequently Asked Questions (FAQ)

  1. Q: What is the main advantage of an EP (Electropolished) finish over standard polished tubing?
    A: EP finish provides a smoother, more uniform surface at a microscopic level. It passivates the stainless steel, enhancing corrosion resistance, and creates a cleaner surface that reduces adhesion of particles and bacteria, which is critical for instrumentation and hygienic applications.

  2. Q: Can you supply tubing with specific dimensional tolerances tighter than standard?
    A: Yes. We specialize in precision tubing and can manufacture products to meet tighter dimensional tolerances on OD, ID, and wall thickness upon request. Please provide your specific tolerance requirements for evaluation.

  3. Q: Is this tubing suitable for high-pressure applications?
    A: While the EP finish improves surface properties, the pressure rating depends on the material grade, wall thickness, and diameter. Our tubing is commonly used in low to medium-pressure instrumentation systems. For high-pressure applications, we recommend discussing your specific parameters with our technical team to ensure suitability.

  4. Q: How does the surface roughness (Ra) compare after electropolishing?
    A: Our precision polished and electropolished tubing typically achieves a surface roughness (Ra) of ≤ 0.4 μm. This represents a very smooth finish suitable for minimizing flow resistance and contamination.

  5. Q: Do you offer certifications or test reports for the tubing?
    A: We can provide standard material certification. Additional specific test reports, such as for surface roughness or chemical composition, are available upon request.

  6. Q: What is the typical lead time for custom orders?
    A: Lead time depends on order quantity, material grade, and specifications. For standard items, it is generally shorter. We provide estimated lead times upon order confirmation and work to meet your schedule requirements.

  7. Q: Can the tubing be bent or fabricated after the EP finish is applied?
    A: Subsequent bending or welding can affect the EP finish locally. For components requiring fabrication, we recommend discussing the sequence of operations (finish before or after fabrication) to achieve the best result for your application.

  8. Q: Which stainless steel grade is most recommended for instrumentation?
    A: Grade 316L is often recommended for instrumentation due to its excellent corrosion resistance, particularly against chlorides, and its low carbon content which minimizes sensitization during welding.

Product Tags: Precision Polished Stainless Steel Tubing , EP Finish Stainless Steel Tube , Instrumentation Stainless Steel Tubing

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Silver Verified Supplier
1Yr
Verified Business License
Business Type
Manufacturer
Year Established
2017
Factory Size
1,000-3,000 square meters
Annual Export Value
US$50 Million - US$100 Million