Standard austenitic stainless steel
Good corrosion resistance
Cost-effective solution
Suitable for general industrial applications
Contains molybdenum for enhanced corrosion resistance
Excellent performance in marine and chemical environments
Ideal for saltwater and aggressive media
High-Quality Material: Made from 316 stainless steel for excellent resistance to corrosion, oxidation, and harsh chemical environments.
Standard Compliance: Fully compliant with ASTM A312 specifications for chemical
Precise Threading: Threaded ends, available in NPT standards
Wide Size Range: Sizes from 1/8” to 8” with various length options to suit different piping systems.
Versatile Applications: Ideal for chemical, pharmaceutical, marine, food, and water treatment piping systems.
Custom & Sample Orders: Small batch samples and custom lengths or thread types can be provided to meet your project requirements.
Safe Packaging: Individually or bulk packed with anti-scratch and anti-rust protection for safe shipping and storage.
Electro-galvanized finish per ASTM A153 for long-lasting corrosion protection.
NPT threads machined to ASME B1.20.1 for leak-free, precise fit.
Material: Carbon Steel A53 / A106 Grade B – Available in Schedule 40 and Schedule 80
Standard sizes are suitable for water supply, irrigation, fire protection, and outdoor piping, and can also be customized to meet your requirements.
Factory direct supply — competitive pricing for bulk and container orders
Custom services offer more choices for length, diameter, and surface treatment.
Seamless Construction — No weld seam, uniform wall thickness throughout
NPT Threads — Machined to ASME B1.20.1 for leak-free assembly
Manufacturer Direct — Produced in-house, no middleman, competitive pricing
Bulk Supply Ready — Container-load orders supported, mixed sizes available
Mill Test Certificates — Available upon request for all orders
North America Export — Consistent supply for US and Canadian distributors
Superior thread quality and natural corrosion resistance
Precision NPT Threads — Machined to ASME B1.20.1 for consistent, leak-free fit
Full range of configurations from the same production line
Manufacturer Direct — No middleman, factory pricing for bulk and container orders
Export — Reliable supply for US, Europe, India, and Australia distributors
Black steel pipe couplings typically feature:
Natural black oxide finish
Light anti-rust oil coating
Industrial black painted coating (optional)
Unlike galvanized fittings, black steel fittings are designed for indoor or protected environments. For outdoor or corrosive environments, painting or additional coating is recommended.
Fire sprinkler pipeline system
Industrial gas pipeline
Boiler room piping
Water supply systems
Mechanical equipment pipelines
Our galvanized pipe nipples help reduce total installation cost in industrial piping systems.
The threaded design allows direct connection without welding, saving labor and equipment costs.
The galvanized coating improves corrosion resistance.
This extends service life and reduces maintenance frequency in water and fire protection pipelines.
For contractors and distributors, this means stable performance and lower lifecycle cost.
We manufacture threaded pipe nipples with standard NPT or BSP threads.
These threads are widely used in international pipeline systems.
Installers can connect them quickly using common pipe tools.
No welding or special equipment is required on site.
This makes them practical for large pipeline projects and fast installation schedules.
Different pipeline environments require different materials.
Provides strong corrosion resistance in water supply and fire sprinkler systems.
Offers high strength and is commonly used in gas or mechanical pipelines where coating is not required.
Best choice for corrosive environments such as chemical plants or marine systems.
Suitable for plumbing and low-pressure systems with good corrosion resistance.
Selecting the correct material improves system reliability and service life.
We operate a stable production line for threaded steel pipe nipples.
Our factory supports large-volume orders for international projects and distributors.
Typical lead time ranges from 15 to 30 days, depending on order volume.
We also support OEM production, custom lengths, and private labeling.
Strict inspection is applied to thread accuracy, coating thickness, and dimensional tolerance.
Our galvanized pipe nipples are commonly used with:
Pipe Coupling
Reducer Coupling
Elbow
Pipe Union
Valve
Flange
These fittings create reliable threaded pipeline connections in industrial systems.
We produce galvanized pipe nipples in a wide range of sizes.
Typical size range: **1/8” to 6”** with various length options.
Available standards include:
ASTM
ANSI
DIN
BS
For project engineers and buyers, we can provide CAD drawings and PDF technical drawings for confirmation.
What is a galvanized pipe nipple used for?
A galvanized pipe nipple is used to connect two female threaded pipe fittings.
It is widely applied in fire protection, water supply and industrial piping systems.
What thread standards are available?
We mainly supply pipe nipples with NPT and BSP threads.
Other thread specifications can also be produced according to customer requirements.
Can you provide OEM pipe nipples?
Yes. We support OEM production including custom lengths, packaging and marking.
This service is commonly used by distributors and project suppliers.
We manufacture high-quality galvanized steel pipe couplings for reliable connections in industrial systems.
Our galvanized steel pipe coupling products are engineered for durability, corrosion resistance, and easy installation across various applications.
Fire sprinkler pipeline system
Industrial gas pipeline
Boiler room piping
Water supply systems
Mechanical equipment pipelines
Our galvanized steel pipe coupling helps reduce installation costs through precise threads and consistent dimensions.
It minimizes leakage risk, lowering long-term maintenance expenses.
The corrosion-resistant coating extends service life, improving overall project ROI for procurement teams.
We offer galvanized steel pipe coupling with standard NPT and BSP threads.
The threads are accurately machined, ensuring smooth engagement on-site.
No special tools are required, making installation fast and efficient for contractors.
We provide multiple material options for the same application needs.
Galvanized Carbon Steel offers strong corrosion protection for outdoor and water systems.
Black Carbon Steel is cost-effective for dry indoor environments.
Stainless Steel provides superior corrosion resistance in chemical or marine conditions.
ASTM B43 Brass is ideal for low-pressure and anti-corrosion applications.
We operate large-scale production lines for galvanized steel pipe coupling manufacturing.
Our monthly capacity ensures stable supply for bulk orders and project demands.
We support OEM and custom specifications, including size, thread type, and surface finish.
Strict quality control guarantees compliance with international standards.
Our galvanized steel pipe coupling can be used with:
Pipe Nipple
Reducer Coupling
Elbow
Pipe Union
Valve
Flange
We produce galvanized steel pipe coupling in a wide size range from 1/8” to 6”.
Standards include ASTM, ANSI, DIN, and BS.
We provide detailed CAD and PDF drawings for engineering and project approval.
What is a galvanized steel pipe coupling used for?
It is used to connect two pipes with the same diameter in threaded piping systems.
It ensures a secure and leak-free connection in water, gas, and industrial pipelines.
What thread standards are available?
We offer NPT and BSP thread standards.
Custom thread types can also be provided based on project requirements.
Can you provide OEM galvanized steel pipe coupling?
Yes, we support full OEM service.
We can customize size, marking, packaging, and surface treatment according to your specifications.
Built tough. Coated to last. Threaded to connect.
Q: What does “black” finish mean on pipe nipples?
A: Black pipe nipples have a black sand blast surface applied to the center body, providing basic surface protection and a clean appearance. Unlike galvanized nipples, they are not intended for direct water contact or outdoor exposed applications.
Q: Are black pipe nipples suitable for gas lines?
A: Yes. Black carbon steel pipe nipples are the standard choice for natural gas and propane distribution lines in residential and commercial installations, as galvanized coatings can flake and cause issues in gas systems.
Q: Can I order mixed sizes in one shipment?
A: Yes, we support mixed-size orders and container-load shipments combining multiple sizes and specifications.
Q: What is the difference between black and galvanized pipe nipples?
A: Black nipples are used primarily for gas, steam, and industrial applications. Galvanized nipples have a zinc coating for corrosion resistance and are preferred for water supply and outdoor use.
Fire sprinkler pipeline system
Industrial gas pipeline
Boiler room piping
Water supply system
Mechanical equipment pipeline
I design our pipe nipples with standard NPT or BSP threads, making them easy to install using common pipe tools.
No welding, special equipment, or extensive training is required on-site.
This helps project teams complete pipeline connections quickly and safely.
Different materials perform differently in the same pipeline environment.
Galvanized Steel Pipe Nipple
Better corrosion resistance, widely used in fire sprinkler and water supply systems.
Carbon Steel Pipe Nipple
Lower cost option for gas pipelines and industrial mechanical systems.
Stainless Steel Pipe Nipple
Excellent corrosion resistance, ideal for chemical plants and food processing pipelines.
Brass Pipe Nipple
ASTM B43 pipe nipple has good sealing and corrosion resistance, and is commonly used in plumbing and light-duty systems.
Our factory produces seamless steel pipe nipples with stable quality and high output.
Monthly production capacity exceeds 800 tons, supporting both bulk orders and distribution supply.
Standard sizes are usually delivered within 15–25 days, and OEM customization is available.
Seamless pipe nipples are typically used together with other threaded pipe fittings:
Seamless pipe nipples are a key connector in threaded piping systems.
They can easily connect with pipe tees, couplings, unions, valves, and pipes to build a complete pipeline structure.
With standard NPT or BSP threads, contractors can quickly assemble flexible piping systems for water, gas, fire sprinkler, and industrial applications.
Pipe nipples provide a reliable threaded connection between pipes and fittings.
They are commonly used with tees and couplings to form complete pipeline systems.
This connection method allows distributors and contractors to quickly assemble piping networks on site.
Pipe nipples are commonly used in threaded piping systems together with couplings, tees, elbows, valves, and pipes.
These fittings enable the construction of complete threaded piping systems for industrial and commercial projects.
Seamless steel pipe nipples are available in a wide range of sizes and thread standards.
Common thread types include NPT, BSPT, and BSPP, meeting international piping standards.
Custom lengths and thread specifications are available according to project requirements.
As a China-based pipe fitting manufacturer with years of experience supplying the American and European markets, we specialize in producing stainless steel, carbon steel, and brass pipe nipples and couplings. Our facility is equipped with precision CNC threading machines and dedicated quality control processes to ensure every product meets ASTM and ASME standards.
We supply distributors, wholesalers, and industrial buyers across the United States and Canada, offering consistent product quality, competitive factory-direct pricing, and reliable lead times on both standard and custom orders.
As a professional stainless steel nipple manufacturer in China, we supply high-quality threaded pipe nipples used to connect or extend piping systems in water, oil, gas, and industrial applications.
Our stainless steel pipe nipple products are manufactured with precise threading and accurate dimensions to ensure tight sealing, easy installation, and reliable performance under demanding conditions.
With strict quality control across every production stage, we ensure consistency in bulk orders, making us a trusted pipe nipple manufacturer for global buyers.
As an experienced pipe nipple supplier, we also support OEM production and comply with international standards to meet different project requirements.
Custom sizes, threads, and materials supported.
👉 Send your drawing for a fast quotation.
Our welded pipes are designed for reliable threaded connections in industrial piping systems.
They are widely used to connect pipes, valves, and equipment.
With precise thread machining and strict quality control, our products ensure tight sealing and long service life.
Suitable for oil & gas, chemical, and water treatment applications.
We provide flexible customization services:
👉 Send your drawing to start your project
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Q1: Can you produce according to the drawings?
Yes, we support OEM production based on drawings or samples.
Q2: What thread standards do you support?
We provide NPT, BSPT, BSPP, and other international threads.
Q3: What is your MOQ?
MOQ varies by product, and flexible quantities are available.
Q4: What materials can you supply?
Carbon steel, stainless steel (304/316), and brass are available.
We are ready to support your project with high-quality products and a fast response.
👉 Send Your Drawing Today
We manufacture threaded couplings that connect two pipes or pipe nipples in a straight line.
Our 304 stainless steel couplings are known for corrosion resistance, durability, and strength. They perform well in environments with moisture, chemicals, or temperature changes, where carbon steel may fail.
In threaded piping systems, couplings are used with pipe nipples, elbows, tees, and valves. This versatility makes them essential for industrial installations, maintenance, and equipment assembly.
As a pipe fitting manufacturer, we produce stainless steel pipes and fittings that meet common standards and provide accurate NPT or BSP threads.
Fire Sprinkler Systems
Gas Pipeline Systems
Industrial Water Supply
Mechanical Equipment Piping
Correct installation ensures a secure, leak-free plumbing system.
We use pipe couplings with other threaded fittings to build flexible, efficient pipelines. Pipe elbows change direction, pipe tees create branches, and valves control flow.
We have extensive manufacturing experience producing threaded pipe fittings.
Each product undergoes dimensional inspection and thread verification.
Our factory maintains stable production to support bulk orders.
Deliver orders promptly to meet urgent project schedules.
We support customized products and packaging according to customer requirements.
What is the difference between a pipe nipple and a pipe coupling?
A pipe nipple is a male-thread fitting, while a pipe coupling is a female pipe fitting.
What materials are available for pipe couplings?
Common materials include galvanized steel, black carbon steel, and stainless steel.
What thread standards do you offer?
We produce fittings compatible with NPT, BSP, and BSPT thread standards.
Can you produce custom sizes or specifications?
Yes, we are a professional pipe fitting manufacturer and can provide custom sizes, thread types, and packaging to meet project requirements.
Our SS304 pipe nipple offers superior corrosion resistance and durability for demanding industrial applications. Manufactured from high-grade stainless steel 304 material, this 1/2 inch pipe nipple features precision NPT (National Pipe Thread) threading for secure, leak-proof connections.
Key Features:
Applications: Perfect for oil & gas, petrochemical plants, food & beverage processing, pharmaceutical equipment, water treatment systems, and marine installations where corrosion resistance is critical.
Quality Assurance: Each pipe nipple undergoes 100% dimensional inspection and thread gauge testing. ISO 9001:2015 certified manufacturing. Material test certificates (MTC) provided with every order.
Minimum Order: 50 pieces | Free Samples Available | Delivery: 7-14 days
Yes, we specialize in bulk production for distributors, contractors, and industrial projects. Our factory ensures stable quality, consistent thread accuracy, and reliable delivery times.
A pipe nipple has external threads on both ends, while a pipe coupling has internal threads.
In most threaded piping systems, a pipe nipple connects two couplings or other female threaded fittings.
Yes, we manufacture threaded pipe fittings according to international standards, including NPT and BSP threads, ensuring compatibility with global piping systems.
Contact us today for expert guidance and competitive quotes.