Carbon Steel Threaded Coupling ASTM A105N NPT X NPT Class 3000 ASME B16.11

What is Threaded Coupling?

Threaded coupling is a very short length of pipe or tube with threads at both ends that allows two pipes to be joined together. The threads usually is internal and NPT in American terms. The diameter of two ends usually is the same, the different sizes is called a reducing coupling.

Threaded Coupling Dimensions

Alloy Steel Half Coupling

ASTM A182 F1, F5, F9, F11, F12, F22, F91

Stainless Steel Full Coupling

ASTM A182 F304/304L/304H, F316/316L, F310, F317, F321, F347

Carbon Steel Straight Coupling

ASTM A105, A350 LF2, LF3, A694 F52, F60, F65, F70

Duplex Steel Reducing Coupling

ASTM A182 F51, F53, F55, F56, S 31803, 32205, 32550, 32750, 32760

Threaded Coupling A105N

Chemical Composition

Mechanical Properties

Carbon Steel Coupling Weight Chart

Threaded Pipe Fittings Manufacturer

Supply Range: 45 Degree & 90 Degree Elbow, Equal Tee & Reducing Tee, Pipe Cap, Full Coupling & Half Coupling, Threaded Nipple, Hex Nipple, Plug, Bushing

Quality Control: In-house Inspection, Third Party Inspection, covers the surface, marking, dimensions and materials. We also supply certifications such as CE, ISO, TEST REPORT and stamp mill test certificate..

Package: Anti Rust Oil, Plastic Bags, Carton and Wooden Box.

Zizi Engineering Co., Ltd is a leading industrial pipe fittings and flanges supplier for construction, petrochemical and oilfield customers.
We engaged in the manufacture and export of industrial pipe fittings for 9 years, our products have been sold to 37 countries around the world. We have a modern and professional manufacturing plant, established two warehouses near the harbor one after another. They are the base for our ability to offer high quality products and fast delivery.

Our products mainly are butt weld fittings, forged pipe fitings and forged steel flanges in stainless steel, carbon steel and alloy steel. They are produced according to ASME/ANSI American standards, DIN Germany Standards, JIS Japanese standards or as customer required. Those products are widely used in petrochemical industry, shipbuilding, oil field in ocean, electric power or city building.

Since we are founded, we are concentrated to be a professional global manufacture company with best products and service. Eventually we get some achievements after years of harding working and presistence. 

We will always insists on the managing objective of " quality first, service supreme, reasonable price". On the basis of continuously perfection the current products, our company persistently innovates upon the productive technology, provides vast customers with all kinds of superior new goods. We are willing to sincerely cooperate with friends from all walks of life to create a better future.