Your Professional Stainless Steel Pipe Nipples Supplier
With years of experience in Pipe Nipples wholesale and production, Cangzhou Zexi Pipe Fittings Co.,Ltd has formed its own advantages among all the Pipe Nipples manufacturers. we Cangzhou Zexi Pipe Fittings Co.,Ltd. is located in Cangzhou City, Hebei Province, China.
-
![NPT Stainless Steel Nipple]()
NPT Stainless Steel NippleProduct Description NPT stainless steel nipple adopts tapered thread design, which not only enhances the sealing performance of the joint, but also effectively prevents leakage problems. Its thread -
![Stainless Steel Threaded Nipple]()
Stainless Steel Threaded NippleStainless steel threaded nipples are stainless steel products that achieve sealing and connection between pipes, equipment or components through threaded connection. They are widely used in -
![1 Inch Stainless Steel Pipe Nipple]()
1 Inch Stainless Steel Pipe Nipple1 inch stainless steel pipe nipple is a length of straight pipe with male threads on both ends. It is one of the most popular category of pipe fittings. It is a connector or a coupling threaded on -
![3 8 Stainless Steel Pipe Nipple]()
3 8 Stainless Steel Pipe Nipple3 8 Stainless steel joints are mainly composed of metal pipes, clamps, washers, sealing sleeves and other components. The pipe body adopts precision turning technology to form a standard threaded -
![1 2 Stainless Pipe Nipple]()
1 2 Stainless Pipe NippleThe 1 2 stainless steel nipple has male National Pipe Taper (NPT) threads for connecting to female threaded pipes, creating a tighter seal than straight threads. The surface of NPT thread is smooth
Why Choose Us
Custom-Made Products
Our company can also manufacture other steel pipe products according to customers' drawings, samples, or specific requirements.
Quality Management System
Our products comply with American Standard ASTM A733/A865, German Standard DIN 2982/DIN 2986, British Standard BS EN 10241, and Russian Standard ISO 228-1. We also implement a strict quality management system in accordance with ISO 9001:2015 requirements.
Our Service
Products can be customized to meet customer needs before the sale and are manufactured strictly according to the drawings during production. After shipment, we provide a one-year quality guarantee to ensure customer satisfaction and peace of mind.
Production Market
Our products are exported to more than 60 countries worldwide, including regions such as North America, South America, Central Asia, Europe, and others.
Exceptional Corrosion Resistance
One of the most significant advantages of stainless steel Pipe nipples is their corrosion resistance. Unlike other materials, stainless steel does not rust or degrade when exposed to moisture, chemicals, or extreme temperatures. This makes it ideal for applications where pipes are in contact with water, acids, or harsh industrial environments.
High Strength and Durability
Stainless steel is known for its superior strength compared to other materials like plastic or mild steel. A stainless steel nipple can handle high-pressure conditions without cracking, deforming, or failing. This durability ensures a long service life, reducing the need for frequent replacements and maintenance costs.
Temperature and Pressure Resistance
Industries that operate in extreme temperatures require fittings that can withstand both heat and cold. Stainless steel nipples maintain their structural integrity even in high-temperature applications such as steam pipelines and industrial heating systems. Additionally, they perform well under high-pressure conditions, ensuring the safe and efficient transport of fluids and gases.
Hygienic and Non-Reactive
For applications involving food, beverages, or pharmaceuticals, stainless steel is an excellent choice due to its non-reactive properties. It does not leach contaminants into fluids, ensuring product purity. This makes it a preferred material for industries requiring stringent hygiene standards.
Low Maintenance and Long Lifespan
A stainless steel nipple requires minimal maintenance compared to other materials. It does not require protective coatings or frequent replacements, making it a cost-effective investment for long-term use. The durability and low upkeep contribute to significant cost savings over time.
Types of Stainless Steel Pipe Nipples
Barrel Nipple
These types of nipples are standard fittings threaded on both ends, with a smooth middle section. They are commonly used in plumbing and industrial settings at 2-12″ lengths. It can handle up to 2,000 PSI pressure and are perfect for extending pipe runs.
Hex Nipple
This typehas a hexagonal center part for secure wrench gripping during installation or removal. This design allows 150 ft-lb torque which is 30% more than standard nipples. Commonly used in high-pressure systems, hex nipples can handle pressures up to 3,000 PSI.
Close Nipple
These nipples are very short, with no unthreaded part between the ends. These compact fittings are important in tight installations, cutting overall system length by up to 15%. While they can handle pressures up to 2500 PSI, their short length can make installing challenging.
Swage Nipple
These are built to connect pipes of different diameters. They are commonly available in concentric and eccentric types. They can reduce pipe size by up to 50% in one fitting which simplifies system design. Concentric swage nipples keep centerline alignment, while eccentric types offset it.
Hose Nipple
Hose nipples have one threaded end and one barbed end for secure hose connection. These versatile fittings can handle pressures up to 150 PSI and are important in fluid transfer uses. The barbed end gives a grip strength 40% stronger than smooth connections which reduces the risk of leaks.
Materials of Stainless Steel Pipe Nipples
Copper
Copper pipe nipples provide superb thermal conductivity and corrosion protection which makes them perfect for plumbing and HVAC systems. With a melting point of 1,984°F (1,085°C), copper pipe nipples handle high temperature. They have a thermal expansion coefficient of 9.2 × 10-6 in/°F for stability in different conditions. Copper’s antimicrobial properties reduce bacteria by up to 99.9% which increase system cleanliness.
Brass
Brass pipe nipples provide excellent machinability and corrosion resistance which is perfect for marine applications and water systems. With a tensile strength of up to 60,000 PSI, brass pipe nipples can withstand pressures up to 1,500 PSI.
PVC
PVC (Polyvinyl Chloride) pipe nipples provide great cost-effectiveness and chemical resistance. With a tensile strength of 7,500 PSI, PVC pipe nipples work for low-pressure uses up to 250 PSI. PVC’s thermal expansion rate of 3.0 × 10-5in/°F is higher than metals which is required for careful installation.
Production process of Stainless Steel Pipe Nipples
Hot Rolling (Seamless Steel Pipe Extrusion) Process
Raw Material Preparation: High-quality round tube blanks are selected as raw materials, and they are cut into billets about 1 meter in length by a cutting machine.
Heating: The round tube blanks are sent into a furnace for heating. The temperature is approximately 1200 degrees Celsius, and the fuel used is either hydrogen or acetylene.
Piercing: The heated round tube blanks are pierced using a pressure piercing machine to form rough tubes.
Rolling: The rough tubes undergo three-roll skew rolling, continuous rolling, or extrusion to further form steel pipes.
Sizing and Cooling: The steel pipes, after going through a sizing mill, are sent into a cooling tower for water spray cooling.
Straightening and Inspection: The cooled steel pipes are straightened and inspected for internal defects using a metal flaw detector or hydrostatic test to ensure quality.
Marking and Storage: Quality-approved steel pipes are marked with paint to indicate their number, specification, production batch number, etc., and are moved to the warehouse by a crane.
Cold Drawing (Rolling) Process
Raw Material Preparation and Heating: Similar to the hot rolling process, round tube blanks are selected as raw materials and heated.
Piercing and Head Forming: The heated round tube blanks are pierced by a piercing machine and then undergo head forming to prepare for the cold drawing process.
Annealing and Pickling: The head-formed steel pipes undergo annealing to relieve stress, followed by pickling to remove surface oxide scales and impurities.
Oiling and Cold Drawing: The pickled steel pipes are oiled and then go through multiple stages of cold drawing (cold rolling) to change the pipe size and length.
Heat Treatment and Straightening: The cold-drawn steel pipes are heat treated to restore material plastication, followed by straightening.
Inspection and Packaging: The finished steel pipes undergo strict quality inspection and testing, including appearance inspection, size inspection, pressure testing, etc. Once qualified, they are packaged and stored.
Welding Process
For stainless steel welded pipes (seam pipes), the welding process is employed for manufacturing. Common welding methods include TIG (Tungsten Inert Gas welding) or high-frequency welding technology. The welding process requires strict control of temperature and welding speed to ensure the quality and stability of the welds. The weld joints should be smooth, free of cracks, and free of slag inclusions. After welding, further processes such as hot rolling or cold rolling are necessary to eliminate stress concentrations and structural changes caused by the welding process.
Other Forming Processes
Apart from hot rolling, cold drawing (rolling), and welding processes, the manufacturing of stainless steel pipes also includes forging methods, roller methods, stamping methods, bending forming methods, rolling methods, and bulging methods. These methods are mainly used to produce specific shapes and sizes of stainless steel pipe fittings, such as elbows, tees, crosses, etc.
Subsequent Treatments
Polishing: After forming, the pipes are polished using a polishing machine to meet different customer requirements.
Inspection and Marking: The finished steel pipes undergo strict quality inspection and testing, including appearance inspection, size inspection, pressure testing, etc., to ensure they meet relevant standards and customer requirements. Qualified stainless steel pipes and stainless steel pipe fittings are marked and recorded for tracking and management purposes.
Uses of Stainless Steel Pipe Nipples
Residential Plumbing
For household plumbing, pipe nipples are important parts used in water supply lines, fixture connections and drain systems. Brass and copper nipples are preferred for drinkable water systems because they have antimicrobial properties and corrosion resistance.
Industrial Pipelines
In industrial pipelines, pipe nipples are important for connecting gauges, valves and instruments. Stainless steel nipples, particularly grade 316, are used in corrosive environments which provides resistance to over 70 different chemicals.
Oil and gas industry
In the oil and gas sector, pipe nipples are important parts in pipelines, wellheads and processing facilities. At wellheads, they connect production casings to surface facilities to withstand pressures up to 15,000 PSI. In pipelines, swage nipples facilitate diameter transitions which reduces turbulence by up to 30 ft3/s compared to sudden contractions.
Chemical Processing
In chemical processing, pipe nipples play an important role in connecting reactors, storage tanks and distillation columns. Stainless steel 316L nipples are preferred for their resistance to over 70 corrosive chemicals and temperatures up to 1600°F (871°C). These nipples can take pressures up to 5,000 PSI in high-pressure reactors.
FAQ
As one of the most professional stainless steel pipe nipples manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale customized stainless steel pipe nipples from our factory.
1 2 inch stainless steel pipe nipple, 1 2 nipple stainless steel, 1 2 Stainless Pipe NipplePopular Products
