ZIZI ENGINEERING CO.,LTD
ZIZI ENGINEERING CO., LTD
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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.
| Size | NPS 3/4" - 60" / DN 20 to DN1200 |
| Wall Thickness | Sch10S, 20, 40, STD, XS, 80, 100, 120, 140, 160, XXS |
| Standard | ASME B16.9 & ASME B16.19 |
| Types | Seamless and Weld 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
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.
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
Chemical Composition
| Grade | C | Mn | P | S | Si | Ni | Mo | Cr |
| 316 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 10-14 | 2 - 3 | 16-18 |
| 316L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 10-14 | 2 - 3 | 16-18 |
| 316H | 0.04 - 0.1 | 2 | 0.045 | 0.03 | 0.75 | 10-14 | 2 - 3 | 16-18 |
Mechanical Properties
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
| 316 | 515 | 205 | 40 |
| 316L | 485 | 170 | 40 |
| 316H | 515 | 205 | 40 |