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As a leading manufacturer in the fluid handling industry, Wuxi Yansheng Technology Co., Ltd. specializes in producing high-performance Butt Welded Seamless Stainless Steel Pipe Fittings. Established in 2017 and operating from a modern facility spanning 1,000-3,000 square meters, we combine precision engineering with stringent quality control to deliver fittings that ensure system integrity, longevity, and safety in demanding industrial environments. Our fittings are designed for permanent, leak-proof connections, offering superior flow characteristics and corrosion resistance for critical applications worldwide.
Our product line is engineered to meet the rigorous demands of various sectors. Key features and specifications include:
Premium Material Construction: Fabricated from high-grade stainless steel alloys such as 304, 304L, 316, and 316L, our fittings offer excellent resistance to corrosion, oxidation, and high temperatures.
Seamless Design Advantage: The seamless manufacturing process eliminates longitudinal welds, resulting in a uniform structure with enhanced strength and pressure containment capabilities, reducing potential weak points.
Precision Machining: Each fitting is machined to exacting tolerances, ensuring perfect alignment and fit-up during welding, which minimizes stress and potential for leaks.
Versatile Product Range: We supply a comprehensive array of butt weld fittings to suit diverse piping configurations.
Below is a table outlining some of our standard product specifications:
| Fitting Type | Common Sizes (NPS) | Wall Thickness (Schedule) | Primary Standards |
|---|---|---|---|
| 90° Elbow | 1/2" - 24" | 10S, 40S, 80S | ASME B16.9, ASTM A403 |
| Tee (Equal) | 1/2" - 36" | 10S, 40S, 80S | ASME B16.9, ASTM A403 |
| Reducer (Concentric) | 1/2" x 3/8" to 24" x 20" | 10S, 40S, 80S | ASME B16.9, ASTM A403 |
| Pipe Cap | 1/2" - 48" | 10S, 40S, 80S | ASME B16.9, ASTM A403 |
| Stub End | 1/2" - 24" | 10S, 40S, 80S | ASME B16.9, MSS SP-43 |
Superior Flow Efficiency: The smooth, unobstructed interior surface of seamless butt weld fittings reduces turbulence and pressure drop, enhancing overall system efficiency.
Enhanced Safety and Reliability: The robust construction and high-integrity weld joints provide exceptional safety margins for handling hazardous, high-pressure, or high-temperature media.
Long Service Life and Low Maintenance: The inherent corrosion resistance of stainless steel, combined with the durable weld joint, translates to a long operational lifespan with minimal maintenance requirements.
Wide Industry Application: These fittings are indispensable in industries such as oil & gas, chemical processing, petrochemical, power generation, pharmaceuticals, food and beverage, and semiconductor manufacturing.
Backed by a team of 101-200 dedicated professionals and an annual export value ranging between US$50 Million and US$100 Million, Wuxi Yansheng Technology has established a strong global presence, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. Our commitment to quality is reinforced by a comprehensive management system. We leverage strategic ports like Tianjin, Shanghai, Qingdao, and Ningbo to ensure reliable and timely delivery. Choose our butt welded seamless stainless steel pipe fittings for a solution that embodies durability, precision, and performance, and contact us today to discuss your specific project requirements.
Frequently Asked Questions (FAQ)
Q1: What are the main advantages of butt weld fittings over threaded or socket weld fittings?
A: Butt weld fittings provide a permanent, full-strength connection with a smooth bore that minimizes pressure drop and turbulence. They are generally more leak-proof under high pressure and vibration and offer better corrosion resistance in the joint area compared to threaded connections.
Q2: What does "seamless" mean for these fittings, and why is it important?
A: "Seamless" means the fitting is formed from a solid billet of stainless steel without any longitudinal weld seam. This creates a more homogeneous structure with uniform strength and better resistance to corrosion and pressure, making it suitable for critical service applications.
Q3: Which stainless steel grade should I choose for my application?
A: The choice depends on the service environment. Austenitic grades like 304/304L are general-purpose grades. For applications involving chlorides or more aggressive chemicals, 316/316L offers superior corrosion resistance due to its molybdenum content. Our team can advise based on your specific media and conditions.
Q4: Are your fittings available in special sizes or non-standard dimensions?
A: Yes. While we stock a wide range of standard sizes per ASME B16.9, we also offer customization services. Special sizes, wall thicknesses, or lengths can be manufactured upon request to meet unique project specifications.
Q5: What surface finishes do you offer?
A: We typically supply fittings with a mill finish. However, polished (e.g., 180-grit, 320-grit) or pickled surface finishes are available as options to meet specific hygienic or aesthetic requirements, common in food, pharmaceutical, or high-purity applications.
Q6: How do I ensure proper welding of these fittings?
A: Proper welding requires qualified procedures and personnel. We recommend following relevant codes (e.g., ASME B31.3). Using appropriate filler metal, maintaining proper purge gas for the inside diameter, and post-weld cleaning/passivation are crucial steps to preserve the corrosion resistance of the stainless steel.
Q7: What is your typical lead time for orders?
A: Lead times vary based on order quantity, specification, and current inventory. Standard items may ship quickly, while large or customized orders require more production time. We provide estimated lead times upon receipt of your detailed inquiry.
Q8: Can you provide material test certificates for your fittings?
A> Yes. We can provide Mill Test Certificates (MTCs) or Certificates of Conformity that detail the chemical composition, mechanical properties, and heat treatment of the material, traceable to the production heat number, ensuring material quality and traceability.
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