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Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.
Contact name:Vicky
Zhengzhou Huitong Pipeline Equipment Co.,Ltd. |
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Duplex Stainless Steel Flange Duplex S32750 SO BL SW TH LJ WN Flange
1.What is Lap Joint flange?
Lap Joint Flanges have all the same common dimensions as any other flange named on this page however it does not have a raised face, they used in conjunction with a "Lap Joint Stub End".
These flanges are nearly identical to a Slip On flange with the exception of a radius at the intersection of the flange face and the bore to accommodate the flanged portion of the Stub End.
Their pressure-holding ability is little, if any, better than that of Slip On flanges and the fatigue life for the assembly is only one tenth that of Welding Neck flanges.
They may be used at all pressures and are available in a full size range. These flanges slip over the pipe, and are not welded or otherwise fastened to it. Bolting pressure is transmitted to the gasket by the pressure of the flange against the back of the pipe lap (Stub End).
Lap Joint flanges have certain special advantages:
1. Lap Joint flange 2. Stub End
3. Butt weld 4. Pipe or Fitting
A Stub End always will be used with a Lap Joint flange, as a backing flange.
This flange connections are applied, in low-pressure and non
critical applications, and is a cheap method of flanging.
In a stainless steel pipe system, for example, a carbon steel
flange can be applied, because they are not come in contact with
the product in the pipe.
Stub Ends are available in almost all pipe diameters. Dimensions and dimensional tolerances are defined in the ASME B.16.9 standard. Light-weight corrosion resistant Stub Ends (fittings) are defined in MSS SP43.
2.Specifications of the Duplex S32750 Flange
| Specifications : ASTM A182 / ASME SA182 |
| Dimensions : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size : 1/8" NB TO 24" NB |
| Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Grades : S32750 / F53 |
3.Chemical Composition of Super Duplex Stainless Steel Pipe Flanges
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
4.Mechanical Properties of ASTM A182 Super Duplex Steel Plate Flanges
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S32750 | 7.8 | 0.281 | 1350 | 2460 |
5.Types Of Super Duplex Steel UNS S32750 Flanges
| Products | Size | |
| ASTM A182 Super Duplex Steel Slip-On Flanges | ASTM A182 Super Duplex Steel Threaded Flanges | Sizes 1/8″ – 36″ Raised Face or Flat Face |
| ASTM A182 Super Duplex Steel Weld Neck Flanges | ASTM A182 Super Duplex Steel Socket Weld Flanges | |
| ASTM A182 Super Duplex Steel Blind Flanges | ASTM A182 Super Duplex Steel Reducing Flanges | |
| ASTM A182 Super Duplex Steel Lap Joint Flanges | ASTM A182 Super Duplex Steel Plate Flanges | |
| ASTM A182 Super Duplex Steel Orifice Flanges | ASTM A182 Super Duplex Steel Forged Flanges | |
| ASTM A182 Super Duplex Steel Ring Type Joint Flanges | ASTM A182 Super Duplex Steel Square Flanges | |
