High Precision Stainless Steel Pipe Fittings SS316 Concentric Reducer 3 / 4 " To 60"

SS316 Concentric and eccentric reducer are very common in the stainless steel pipe fittings system. They are used to conncet the steel pipe or other fittings with different nominal diameter, so we also call it as reducing fittings. Same as other buttweld fittings, steel pipe reducer has large range of dimensions which cover 3/4" to 60".

We are specializing in industrial pipe fittings for companies who involved in Equipment Manufacturing, Mining, Oil Refineries, Chemical manufacturing, Steel and Aluminum Manufacturing, Utilities and Transportation, and Industrial Construction.

Except the stainless steel pipe reducer, pipe fittings are also in form of Bend, Elbow, Tee, Cap, Stubend, Nipple, Union, Cross, Coupling, Socket, Plug, Sokolet, Weldolet, Thredolet, Elbolet, Nipolet Etc.

Stainless Steel Concentric Reducer Fitting Dimensions

Material & Grade for Steel Pipe Reducer

Stainless Steel Eccentric Reducer

ASTM A403 WP304/304L/304H, WP316/316L, WP310, WP317, WP321, WP947, WP30

Carbon Steel Concentric Reducer

ASTM A234 WPB / WPC, ASTM A860 WPHY42, 52, 60, 65, 70, ASTM A420 WPL3, WPL6, WPL9

Alloy Steel Reducer

ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91

Duplex Steel Pipe Reducer

ASTM A815 UNS S 31803, S 32205, S 32550, S 32750, S 32760

Types of Stainless Steel Pipe Fittings

Stainless Steel Socket Weld Fittings

Socket weld fittings is a one type of forged steel fittings, which used for small bore pipes and piping systems (generally below 4 inches). We usually manufacture them according to ASME B16.11 and BS3799 standard.

Supply Range

Size: NPS 1/8 to 4 / DN 6 to 100
Pressure: 3000LB, 6000LB, 9000LB.

316 Stainless Steel Threaded Fittings

Threaded pipe fittings is a another type of forged steel fittings, same as socket weld fittings as above.

Supply Range

Size: NPS 1/8 to 4 / DN 6 to 100
Pressure: 2000LB, 3000LB, 6000LB

Stainless Steel Buttweld Fittings

316 Stainless Steel Properties

Chemical Composition

Mechanical Properties

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.