Discover the unparalleled strength and reliability of Stainless Steel Socket Weld Fittings, expertly crafted for precision and durability in every application.
Product Description
Product Overview
Stainless Steel Socket Weld Fittings are expertly crafted to provide permanent, highly reliable connections in piping systems that demand unparalleled leak-tight integrity and robust structural strength, even under extreme conditions of high pressure and temperature. Our fittings ingeniously achieve a seamless, unified connection by inserting the pipe into the socket of the fitting, followed by a precise fillet weld around the exterior. This advanced design greatly enhances the connection's capacity to withstand fatigue and mechanical stress, rendering them indispensable in modern industrial piping systems, particularly for small-bore applications that require exceptional durability.
Core Features & Advantages
Exceptional Structural Integrity: The socket weld design endows the fittings with outstanding mechanical strength, adeptly resisting vibrations, shocks, and bending stresses, while effectively preventing joint loosening or leakage, providing steadfast reliability in the most challenging environments.
Superior Sealing Performance: The welded joint establishes a permanent metal-to-metal seal that offers superior leak tightness compared to traditional threaded connections. This makes them ideal for high-pressure, high-temperature, and vacuum systems, ensuring optimal performance and peace of mind.
No Threading Required: By eliminating the need for threaded connections, these fittings remove stress concentrations and potential leak paths, as well as the necessity for sealants such as thread tape or compounds, simplifying your assembly process.
Easy Installation & Alignment: The intuitive socket design facilitates natural self-alignment of pipes before welding, streamlining installation processes, particularly in multi-pipe assemblies within confined spaces, and reducing the time and complexity of setups.
Smooth Flow Characteristics: Engineered with precision, these high-quality fittings feature bored interiors that align perfectly with standard pipe IDs, ensuring fluid flows smoothly, minimizing pressure drops, and reducing turbulence for enhanced system efficiency.
Excellent Corrosion Resistance: Crafted from premium stainless steel grades like 304 (06Cr19Ni10), 316 (0Cr17Ni12Mo2), and 316L (00Cr17Ni14Mo2), in accordance with ASTM A182 standards, these fittings boast exceptional resistance to corrosion and extreme temperatures, making them ideal for use in corrosive environments such as chemical, petrochemical, marine, and food & pharmaceutical industries.
Technical Parameters & Specifications
Connection Type: Socket Weld (SW)
Applicable Standards:
International Standards: ASME B16.11, MSS SP-79, ensuring global compatibility and adherence to stringent quality benchmarks.
Domestic Standards: GB/T 14383, HG/T 21634 (Typically referenced in specific regions/markets), providing locally recognized quality assurance.
Pressure Rating: Available in various classes like 3000 pound (SCH80) and 6000 pound (SCH160), among others, to adeptly meet diverse pressure requirements.
Common Types: Our versatile range includes 45° Elbow, 90° Elbow, Tee, Cross, Socket, Cap, and Reducing Socket, among others, catering to a wide spectrum of application needs.
Size Range: Specifically designed for small-bore piping, typically ranging from **DN6 ~ DN100 (1/8" ~ 4"), offering flexibility for various piping configurations.
Welding Requirement: For optimal performance, ensure the pipe is inserted to the bottom of the socket with an approximate 1.6mm expansion gap before executing the fillet weld, guaranteeing a secure and reliable joint.
Application Areas
Our stainless steel socket weld fittings excel in industries where safety and sealing are critical, offering peace of mind in demanding applications:
Oil & Gas: Perfectly suited for wellhead equipment and high-pressure process lines in refineries, ensuring the utmost reliability.
Chemical & Petrochemical: Ideal for corrosive chemical transfer lines and reactor interfaces, providing exceptional durability and resistance.
Power Generation: Essential for high-pressure steam and feedwater systems in power plant boilers, ensuring consistent performance.
Shipbuilding: Ideal for marine piping systems and hydraulic systems, offering robust performance even in harsh maritime conditions.
Pharmaceutical & Food Industry: Perfect for process piping requiring high cleanliness, often supplied with polished finishes to meet stringent industry standards.
Compressed Air Systems: Ideally suited for high-pressure compressed air lines in plants, offering reliable and efficient service.
Selection & Installation Considerations
Material Selection: Opt for 304, 316, or 316L stainless steel based on conveyed medium characteristics such as corrosiveness and temperature, ensuring optimal material compatibility and performance.
Pressure Rating: Carefully select the optimal pressure class, such as the robust 3000LB or the formidable 6000LB, ensuring it aligns seamlessly with the system's design pressure for maximum efficiency and safety.
Size Compatibility: Guarantee that the fitting size is exquisitely compatible with the pipe's outside diameter, providing a flawless fit for superior performance.
Professional Welding: Welding must be executed with precision by certified professionals adhering to strict standard procedures. This includes maintaining an immaculate root gap and applying a TIG root pass, followed by essential Non-Destructive Testing (NDT) to verify and ensure exemplary weld quality.
Post-Weld Treatment: The welded areas typically necessitate meticulous passivation, and sometimes pickling, to rejuvenate and fully restore the exceptional corrosion resistance of the heat-affected zone.
Detailed Photos






Product Parameters
| Size |
3/8"~4" |
| Material |
SS304;SS316;SS304L;SS316L |
| Connection type |
BW ; SW |
| Packing |
carton;wooden case |
About US






FAQ
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.