Black carbon steel pipe couplings are one of the most commonly used threaded fittings.
Designed for strength and sealing performance, our pipe couplings have precise threading.
Suitable for both standard commercial piping and heavy industrial applications.
Black steel pipe couplings are preferred in applications requiring:
Their durable carbon steel construction makes them suitable for long-term use in demanding industrial environments.
Widely used in:
Low-quality threaded couplings often create installation issues and leakage risks.
Our production process includes:
This ensures better compatibility with international threaded pipe standards.
We supply black steel threaded couplings to:
Flexible MOQ and customized packaging are available.
Send us your required size and thread standard for quotation support.
Compared with galvanized or black steel couplings, stainless steel threaded couplings provide:
This makes them ideal for long-term industrial installations.
Economical and versatile for general industrial piping.
Enhanced resistance against chlorides, chemicals, and saltwater exposure.
Our stainless steel threaded couplings are commonly used in:
Thread accuracy directly affects sealing performance.
Our factory uses CNC threading equipment and calibrated gauges to ensure:
Each batch undergoes thread inspection before shipment.
We support customized production for distributors and industrial projects, including:
Material test certificates are available upon request.
Contact us for stainless steel pipe coupling catalogs, technical drawings, and wholesale pricing.
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
We supply close, short, long, extra-long, and hex nipples from 1/8″ through 8″ NPS, in schedules ranging from SCH 40 to XXS.
ASTM A733 and ASME B1.20.1 (NPT) threaded nipples are leak-tight partners in piping.
304 and 316/316L stainless steel offer corrosion resistance in areas with chloride exposure.
Whether seamless or welded pipe nipples from ASTM A733, with threading on both ends (TBE) or one end (TOE).
BSP threading is available on request.
304 is a cost-effective material for HVAC and water treatment.
316 and 316L grades are used where elevated resistance to pitting and crevice corrosion.
Mill test reports (MTR) to EN 10204 3.1 are available with every order.
All products are traceable, and dimensional inspection is in-house before shipment.
We supply distributors, EPC contractors, and end-user facilities with no minimum order quantity on standard sizes.
Offer custom lengths, thread forms, and special material certifications — contact us with your specifications for a quote.
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.
Discover the reliable connection every plumber, contractor, and industrial pro counts on.
Our black pipe nipple is crafted from heavy-duty steel, designed to deliver rock-solid performance in demanding environments.
Built with precision NPT threads on both ends, it ensures a perfect, leak-free seal every time.
Whether you’re handling high-pressure gas, oil, steam, or water lines, this nipple stands up to the pressure without compromise.
Its tough black finish resists corrosion in dry applications, so you get long-lasting durability without extra maintenance.
Installation is fast and straightforward — simply screw it in, and you’re done.
No fuss, no leaks, and it holds strong for years.
Professionals choose it because it saves time on the job and eliminates costly callbacks.
Ready to upgrade your piping system with the best?
Add this pro-grade black pipe nipple to your cart now and get the job done right the first time.
Fast shipping, unbeatable quality — order today!
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
A close pipe nipple is very short with threaded ends that meet at the center with little to no unthreaded section.
Also referred to as a “running nipple”, it is the most compact pipe nipple.
It is the go-to solution when two fittings must be connected with almost no gap between them.
Our close black carbon steel nipples have a characteristic dark oxide surface finish that provides basic corrosion resistance.
They are produced in strict conformance with ASTM A733 and ASME B1.20.1 thread standards.
| Parameter | Details |
|---|---|
| Material | Black Carbon Steel (A53 / A106 Gr.B) |
| Standard | ASTM A733 |
| Thread Type | NPT / BSP / BSPT |
| Size Range | 1/8″ – 4″ (DN6 – DN100) |
| Wall Thickness | Schedule 40 / Schedule 80 |
| Surface Finish | Black (Mill Finish / Oil Coated) |
| End Type | Threaded Both Ends (TBE) |
| Length | Approx. 1″ – 3″ depending on size |
The main difference between a close nipple and a standard pipe nipple is the exposed pipe body length.
A standard pipe nipple has visible unthreaded pipe, while a close nipple is almost completely threaded.
This design reduces the installation distance between fittings and makes it more compact.
We manufacture threaded pipe nipple products in multiple international thread standards:
Custom thread combinations and special dimensions are also available for OEM and industrial projects.
As a pipe nipple manufacturer, we supply black steel pipe nipple products to distributors and wholesalers.
In addition to close nipples, we also manufacture:
OEM marking, custom packaging, and bulk production are supported.
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.
A long nipple (also known as a barrel nipple) is a pipe nipple with an extended unthreaded center section between two externally threaded ends. The exposed center section provides a practical grip point for tools during installation and allows precise spacing between connected fittings. Unlike close nipples, long nipples offer flexibility in pipeline layout where a specific distance must be maintained between two threaded connections.
Our long black steel nipples are cut and threaded from black carbon steel pipe, offering the same robust performance as our other nipple types with the added benefit of adjustable center length.
Custom lengths can be produced to meet specific project requirements.
| Parameter | Details |
|---|---|
| Material | Black Carbon Steel (A53 / A106 Gr.B) |
| Standard | ASTM A733 |
| Thread Type | NPT / BSP / BSPT |
| Size Range | 1/8″ – 6″ (DN6 – DN150) |
| Wall Thickness | Schedule 40 / Schedule 80 |
| Surface Finish | Black (Mill Finish / Oil Coated) |
| End Type | Threaded Both Ends (TBE) |
| Standard Lengths | 4″ – 12″ (custom lengths available) |
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.
Carbon steel, stainless steel, and brass pipe nipples manufactured to ASTM standards. We supply contractors, distributors, and EPC firms across global markets with consistent quality and full traceability.
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.