Durable Carbon Steel Industrial Pipe Fittings GI Coupling A105N FNPT Coupling

GI Coupling A105N FNPT Coupling, Carbon Steel Threaded Pipe Fittings

GI Steel Coupling

We are trustworthy manufacturer and supplier GI (Galvanized Iron) threaded coupling and export diverse pipe fittings for more than 20 countries. It is made by quality assured material and advanced technology and widely used in pipelines and submersible pumps.

GI Threaded Coupling Dimensions

Alloy Steel NPT Coupling
ASTM A182 F1, F5, F9, F11, F12, F22, F91
Stainless Steel Threaded Coupling
ASTM A182 F304/304L/304H, F316/316L, F310, F317, F321, F347
Carbon Steel Pipe Coupling
ASTM A105, A350 LF2, LF3, A694 F52, F60, F65, F70
Duplex Steel Forged Coupling
ASTM A182 F51, F53, F55, F56, S 31803, 32205, 32550, 32750, 32760

Availavle Coating

Anti-rust Oil, Galvanized, As customer requirements

ASTM A105N Forged Fittings

Chemical Composition

Mechanical Properties

Heat Treatment

Normalizing Heat Treatment.

Threaded Full Coupling Weight Chart

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.