Aluminum coupling NPT Thread Manufacturer
We are a professional manufacturer of Aluminum full coupling NPT Thread ,Aluminum half coupling NPT Thread .
Aluminum 6061 full couplings are precision-machined pipe fittings designed for joining two sections of aluminum pipe or tubing. Made from high-strength Aluminum 6061 alloy, these couplings provide excellent corrosion resistance, lightweight properties, and durability for industrial, marine, and structural applications.
What is an Aluminum Coupling?
An aluminum coupling is a cylindrical fitting used to join two pipes of the same diameter. Compared with steel or brass couplings, aluminum couplings are lighter in weight, provide excellent corrosion resistance, and are easier to install.
A coupling is a short length of cut pipe used to connect 2 pieces of pipes in the middle.A full couling always with Both end Female threaded,to connect the male thread pipes or fittings. Couplings can be made of vairous metals,carbon steel,stainless steel or Aluminum.Aluminum Coupling offers a lightweight, corrosion-resistant solution ideal for various industries.
Our Aluminum Full couplings are made from high quality raw Aluminum alloy,thread conform to ASME B1.20.1 and meet SCH 40 wall thickness for 150# rating. Aluminum Coupling can be used as Aluminum Female Weld On Bung, Weldable Fuel Tank Fitting
NPT full Couplings are tapered threaded fittings and can be threaded from both ends as per NPT ASME B1.20.1 standard
Full couplings are NPT fittings that contain female NPT fittings on either end.
Our Full coupling Advantage
- Made of high performance lightweight 6061-T6 or 5083
- Weldable, Stepped design for ease of fabrication
- Can be used for most automotive needs, such as: Fuel, Tank.
Aluminum 6061 is a precipitation-hardened alloy, meaning it is strengthened during a heat treatment process that involves the disbursement of particles within the metal’s grain structure, hindering motion and effectively increasing strength and durability. Among its major alloying elements are silicon and magnesium, in addition to elements such as iron, copper, and zinc. Developed in 1935, aluminum 6061 is one of the most versatile aluminum alloy options. This is because it is able to be fabricated by many of the techniques most often used, offering great workability and range of mechanical properties. Further, 6061 exhibits a high level of corrosion resistance, and is highly weldable. Aluminum 6061 is available in numerous versions including tempered 6061-T6 and 6061-T651 grades, as well as pre-tempered 6061-O grade.
| Chemical Composition Limits of Aluminum 6061 | |||||||||||
| Weight% | Al | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Other Each | Others Total |
| 6061 | Bal | 0.40 – 0.80 | 0.70 max | 0.15-0.40 | 0.15 | 0.8-1.2 | 0.04-0.35 | 0.25 max | 0.15 max | 0.05 max | 0.15 max |
Types of Aluminum Couplings
- Full Coupling – Connects two pipes of the same size.
- Half Coupling – Connects one pipe to a fitting or equipment.
- Reducing Coupling – Connects pipes of different diameters.
- Threaded Aluminum Coupling – With internal threads for easy assembly/disassembly.
A typical order description
Aluminum Full Coupling, 1” NPT Thread, Aluminum 6061-T6,
Aluminum coupling 150lbs Dimension sheet
| Item# | Material | Size | Threads/Inch | Drill | Outer Diameter | Length |
|---|---|---|---|---|---|---|
| 1/8″ Full Coupling | 6061-T6 | 1/8 in | 27 | R (0.339″) | 0.59 in | 0.94 in |
| 1/4″ Full Coupling | 6061-T6 | 1/4 in | 18 | 7/16″ (0.438″) | 0.75 in | 1.03 in |
| 3/8″ Full Coupling | 6061-T6 | 3/8 in | 18 | 37/64″ (0.578″) | 0.91 in | 1.16 in |
| 1/2″ Full Coupling | 6061-T6 | 1/2 in | 14 | 23/32″ (0.719″) | 1.06 in | 1.31 in |
| 3/4″ Full Coupling | 6061-T6 | 3/4 in | 14 | 59/64″ (0.922″) | 1.34 in | 1.56 in |
| 1″ Full Coupling | 6061-T6 | 1 in | 11-1/2 | 1-5/32″ (1.156″) | 1.62 in | 1.81 in |
| 1-1/4″ Full Coupling | 6061-T6 | 1-1/4 in | 11-1/2 | 1-1/2″ (1.5″) | 1.97 in | 2.06 in |
| 1-1/2″ Full Coupling | 6061-T6 | 1-1/2 in | 11-1/2 | 1-47/64″ (1.734″) | 2.23 in | 2.31 in |
| 2″ Full Coupling | 6061-T6 | 2 in | 11-1/2 | 2-7/32″ (2.219″) | 2.72 in | 2.56 in |
| 2-1/2″ Full Coupling | 6061-T6 | 2-1/2 in | 8 | 2-5/8″ (2.625″) | 3.31 in | 2.88 in |
| 3″ Full Coupling | 6061-T6 | 3 in | 8 | 3-1/4″ (3.25″) | 3.94 in | 3.06 in |
| 3-1/2″ Full Coupling | 6061-T6 | 3-1/2 in | 8 | 3-3/4″ (3.75″) | 4.44 in | 3.44 in |
| 4″ Full Coupling | 6061-T6 | 4 in | 8 | 4-1/4″ (4.25″) | 4.94 in | 3.44 in |
Applications of Aluminum Couplings
Aluminum couplings are widely used in:
- Water and irrigation systems
- Compressed air & gas pipelines
- Automotive and aerospace piping
- Marine and offshore industries
- Chemical & process plants
Download Aluminum Coupling Specification
Related Aluminum 6061 Products
- Aluminum 6061 Socket Weld Fittings
- Aluminum 6061 Elbows and Tees
- Aluminum 6061 Flanges
- Aluminum 6061 Reducers and End Caps
