Views: 4 Author: Site Editor Publish Time: 2024-12-11 Origin: Site
ASTM A234 WPB Reducer is butt welded to avoid cracking or corrosion in the joints of high pressure systems. WPB Reducer can change the fluid flow volume and the direction at the same time. It changes the volume by reducing the diameter from one end to the other end. It also changes direction through the elbow at the same time. It is a combination of two fittings together. A234 WPB Reducer Dimensions allow it to do this transmission smoothly avoiding opportunities of bending stress and pressure risks due to the cone shape.
Carbon steel butt welding reducers are widely used in the control of water, gas, steam, oil and corrosive media in chemical, petroleum, metallurgy, light industry, electric power, pharmaceutical and other industries.
ASTM A234 WPB Reducer Specification
Size Range | 3/4" - 60" / DN20 - 1500 |
Thickness Schedule | SCH 10 - SCH 80, SCH 160, XXS |
America Standard | ANSI / ASME B16.9 / MSS SP 43 |
Japan Standard | JIS B2311/2312/2313 |
Germany Standard | DIN2605/2615/2616/2617 |
Europe Standard | EN10253 |
Carbon Steel | Q235, 20#, 35#, 45#, 20G,ASTM A234 WPB/WPC |
ASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services. It covers steel fittings of seamless and welded types. Steel Pipe fittings are applied in pressure pipelines and in pressure vessel fabrications. These fittings material consist of killed steel, forgings, bars, plates, seamless or HFW (fusion welded) pipe products, with filler metal added.
ASTM A234 WPB Chemical Composition
CHEMICAL | LIMITS | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | Cb | V |
ASTM A234 WPB | MIN | 0.29 | 0.10 | |||||||||
MAX | 0.30 | 1.06 | 0.050 | 0.058 | 0.40 | 0.15 | 0.40 | 0.40 | / | 0.08 |
ASTM A234 WPB Mechanical Property
MATERIAL | T.S (MPA) | Y.S (MPA) | EL % | R/A % | HARDNESS |
ASTM A234 WPB | 415 min | 240 min | 22 min | 30 min | 197 max |
ASTM A234 WPB Reducer Dimension
ASTM A234 WPB Reducers can be divided into concentric reducers and eccentric reducers, with sizes ranging from 3/4" to 60, and wall thicknesses of SCH10 SCH20 STD SCH40 SCH60 SCH80 SCHXS SCH100 SCH120 SCH140 SCH160 SCHXXS.
Concentric Reducers: The center points of the circles at both ends of the pipe are on the same straight line. Usually used for connecting straight pipes.
ASME B16.9 Concentric Reducer Dimensions
OD1 | OD2 | END TO END | SCH 40 WEIGHT |
NPS | NPS | H | KG |
3/4 | 3/8 - 1/2 | 38 | 0.07 |
1 | 1/2 - 3/4 | 51 | 0.14 |
1 1/4 | 1/2 - 1 | 51 | 0.19 |
1 1/2 | 1/2 - 1 1/4 | 64 | 0.29 |
2 | 3/4 - 1 1/2 | 76 | 0.46 |
2 1/2 | 1 - 2 | 89 | 0.85 |
3 | 1 1/4 - 2 1/2 | 102 | 1.11 |
4 | 2 - 3 1/2 | 102 | 1.8 |
5 | 2 - 4 | 127 | 3.05 |
6 | 2 1/2 - 5 | 140 | 4.35 |
8 | 3 1/2 - 6 | 152 | 7.12 |
10 | 4 - 8 | 178 | 11.8 |
12 | 5 - 10 | 203 | 17.8 |
14 | 6 - 12 | 330 | 34.3 |
16 | 6 - 14 | 356 | 48.3 |
18 | 8 - 16 | 381 | 65.3 |
20 | 10 - 18 | 508 | 102 |
22 | 12 - 20 | 508 | - |
24 | 12 - 22 | 508 | 143 |
26 | 12 - 24 | 610 | - |
28 | 14 - 26 | 610 | - |
30 | 14 - 28 | 610 | - |
32 | 20 - 30 | 610 | 230 |
34 | 22 - 32 | 610 | 245 |
36 | 22 - 34 | 610 | 282 |
38 | 24 - 36 | 610 | - |
40 | 28 - 38 | 610 | - |
42 | 28 - 40 | 610 | - |
44 | 32 - 42 | 610 | - |
46 | 34 - 44 | 711 | - |
48 | 36 - 46 | 711 | - |
52 | 40 - 48 | 711 | - |
56 | 40 - 52 | 711 | - |
60 | 44 - 56 | 711 | - |
Eccentric Reducers: The centers of the two circles do not coincide (but may be on a straight line). Usually used for connecting horizontal pipes, and when used, it is necessary to indicate whether it is bottom flat or top flat.
ASME B16.9 Eccentric Reducer Dimensions
OD1 | OD2 | END TO END |
NPS | NPS | H |
3/4 | 3/8 - 1/2 | 38 |
1 | 1/2 - 3/4 | 51 |
1 1/4 | 1/2 - 1 | 51 |
1 1/2 | 1/2 - 1 1/4 | 64 |
2 | 3/4 - 1 1/2 | 76 |
2 1/2 | 1 - 2 | 89 |
3 | 1 1/4 - 2 1/2 | 102 |
4 | 2 - 3 1/2 | 102 |
5 | 2 - 4 | 127 |
6 | 2 1/2 - 5 | 140 |
8 | 3 1/2 - 6 | 152 |
10 | 4 - 8 | 178 |
12 | 5 - 10 | 203 |
14 | 6 - 12 | 330 |
16 | 6 - 14 | 356 |
18 | 8 - 16 | 381 |
20 | 10 - 18 | 508 |
22 | 12 - 20 | 508 |
24 | 12 - 22 | 508 |
26 | 12 - 24 | 610 |
28 | 14 - 26 | 610 |
30 | 14 - 28 | 610 |
32 | 20 - 30 | 610 |
34 | 22 - 32 | 610 |
36 | 22 - 34 | 610 |
38 | 24 - 36 | 610 |
40 | 28 - 38 | 610 |
42 | 28 - 40 | 610 |
44 | 32 - 42 | 610 |
46 | 34 - 44 | 711 |
48 | 36 - 46 | 711 |
52 | 40 - 48 | 711 |
56 | 40 - 52 | 711 |
60 | 44 - 56 | 711 |
Advantages of ASME B16.9 Reducer
As a commonly used connection component in the pipeline system, ASTM A234 WPB reducer have many advantages.
●Good Sealing Performance
The reducers are connected to the steel pipe by welding to form a complete sealing structure. ●High pressure rating
Its compact structure and high strength can withstand large internal pressure and external force, ensuring that the pipeline system can maintain stable operation under various working conditions.
●Compact Structure and Beautiful Appearance
The reducers have a reasonable structural design and beautiful appearance, which can save space in the pipeline system and make the overall layout more compact and reasonable.
●Moderate Corrosion Resistance
Although the corrosion resistance of carbon steel is relatively poor compared to alloy steel and other materials, ASTM A234 WPB reducers perform well in some non-corrosive or weakly corrosive environments.
