JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
                                                                                                           
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16 Years
Since 2010
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Sanitary Welded Stainless Steel Pipes, Mirror Finish, FDA Compliant

Price Negotiable
Price: Negotiable
MOQ: 1000Kilogram
Delivery Time: 5-7Days
Brand: Jiangsu China Steel Union
Product Description
Sanitary Welded Stainless Steel Pipes: Precision Engineered for Hygienic Flow
Sanitary Welded Stainless Steel Pipes are engineered to establish a superior, cleanable, and reliable flow path for demanding applications where hygiene, corrosion resistance, and system integrity are non-negotiable. These pipes are fabricated from high-grade stainless steel, featuring a precision-welded seam that is internally smoothed to minimize crevices and prevent bacterial entrapment. The product is the cornerstone of closed-system fluid transfer, ensuring product purity and operational consistency in sensitive processes. Unlike standard industrial pipes, sanitary welded pipes prioritize internal surface finish and cleanability, making them indispensable for industries governed by stringent sanitary standards.
Key Features & Selling Points:
  • Hygienic Design:​ The smooth, polished internal surface (achievable in Ra ≤0.8µm or better) and fully penetrated, contoured welds prevent contamination buildup and facilitate easy cleaning and sterilization (CIP/SIP).
  • Exceptional Material:​ Primarily constructed from 304/304L or 316/316L stainless steel, offering excellent resistance to corrosion, oxidation, and chemical attack from process fluids and cleaning agents.
  • Precision Manufacturing:​ Utilizing advanced automatic orbital welding or laser welding technology ensures consistent, high-integrity welds with minimal heat-affected zones, preserving the material's metallurgical properties.
  • Robust Construction:​ The welded seam provides enhanced structural strength and leak-proof performance under various pressure and temperature ranges.
  • Versatile Connectivity:​ Available with various sanitary end finishes such as butt weld ends, clamp-style (Tri-clamp), or bevel-seat fittings for a secure, flush connection within the system.
Specifications at a Glance
Dimension / Parameter
Details / Options
Primary Material Grades
AISI 304, 304L, 316, 316L (meets ASTM A270 standard)
Standard Sizes (OD)
1/2" to 4" (DN15 to DN100) and larger, custom sizes available
Wall Thickness
Sch 5S, Sch 10S, or as specified per application requirements
Surface Finish (Internal)
Mechanically polished to #180 grit, #320 grit, or electro-polished; Ra 0.8µm to 0.4µm
Welding Standard
Automatic Orbital Welding (GTAW/TIG), following ASME BPE guidelines
Common End Connections
Butt Weld, Tri-Clamp (DIN/SMS/ISO), Bevel Seat, Flanged
Technology & Manufacturing Process
The production of Sanitary Welded Stainless Steel Pipes involves cutting, precision forming, and welding using automated orbital TIG or laser welders under inert gas shielding. The critical post-weld treatment includes internal bead smoothing (for butt-weld pipes) and a multi-step mechanical and/or electro-polishing process. This achieves the required micro-finish, passivates the surface to restore the chromium oxide layer, and ensures the pipe interior is free of contaminants and pockets.
Applications
Sanitary Welded Stainless Steel Pipes are fundamental in industries where preventing contamination is critical:
  • Food & Beverage:​ Transfer of dairy, juices, sauces, and alcoholic beverages.
  • Pharmaceutical & Biotech:​ Process lines for purified water, WFI, and sensitive biopharmaceutical products.
  • Cosmetics:​ Movement of creams, lotions, and liquid personal care products.
  • Semiconductor:​ High-purity chemical and gas delivery.
Advantages Over Alternatives
Compared to seamless pipes or threaded pipes, these welded sanitary pipes offer a more cost-effective solution for high-purity applications without compromising hygiene. The controlled welding process allows for greater consistency in wall thickness and internal smoothness over long lengths. Their design inherently supports faster assembly and disassembly for maintenance and inspection.
Service & Support
We provide comprehensive technical support, including material certification (Mill Test Reports), process validation documentation, and guidance on system design and installation best practices. Custom fabrication according to client drawings and specifications is available.
FAQ
  • Q: How do I clean these pipes effectively?
    A: They are designed for Clean-in-Place (CIP) and Sterilize-in-Place (SIP) procedures using recommended solutions and cycles.
  • Q: Can these pipes be bent or fabricated on-site?
    A: For sanitary integrity, field bending is not recommended. Prefabricated spools and components are advised, which we can supply as per isometric drawings.
  • Q: What is the pressure rating?

    A: The pressure rating depends on the material grade, wall thickness, and diameter. Specific ratings should be confirmed based on the selected specification.

     

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company JIANGSU CHINA STEEL UNION INDUSTRIAL CO.,LTD.
Location Hui'an Road Metal Technology Park, Wuxi, Jiangsu, China
Contact Person Alice

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