Steel Forged Flanges ASTM A182 B16.5 F321 2" CLASS 300 L270
YUHONG Stainless distributes Stainless Steel Flanges including:
Slip-Ons, Socket Weld, Blinds, Lap Joints, Threaded and Weld Necks.
Steel Flanges
Pipe Flanges are widely used as a popular category of pipe
fittings. A flange is used to mechanically connect two pipes
together. It can also be used to mechanically connect a pipe to a
tee, valve, choke or any other piece of equipment. Flanges are
available in round, square, and rectangular shapes. In some cases,
flanges are usually in the shape of a ring or a plate to form a rim
at the end of a pipe when fastened to the pipe. This is an example
of closet flange. A flange can also be a plate for covering or
closing the end of a pipe. This is a blind flange. Thus, flanges
are considered to be projecting or internal components which are
used to support mechanical parts. They are like rims which are used
to strengthen the mechanical part or they are a means of attaching
that part to another part or surface. | |
We exports various forged and plate flanges in large diameter with
different grades. We produce using high quality of steel to make
them last for many years.
We offer high quality and superior performance steel flanges for
various requirements of our clients. Designed as per market
standards and parameters. Our flanges are high in durability and
can withstand extreme conditions. Our comprehensive range includes
weld neck flanges, socket weld flanges, steel weld flanges, steel
weld neck flanges and many more.
Flanges Types:
- Slip On - SORF Flanges
- Weld Neck - WNRF Flanges
- Socket Weld - SWRF Flanges
- Blind - BLRF Flanges
- Lapped Joint Flanges
- Screwed Flanges
- Long Weld Neck Flanges
- Reducing Flanges
- Spectacle Flanges
- Ring Joint Flanges
FLANGES STANDARD:
- ASTM FLANGES
- BS FLANGES
- DIN FLANGES
- IS FLANGES
Product Range:
WNRF Flanges Size : 1/8" NB TO 48"NB.
WNRF Flanges Class : 150#, 300#,400 #,600#,900#, 1500# & 2500
#.
Slip-on Flanges
Slip-on Flanges have a lower initial cost than welding neck flanges
because they require less accuracy in cutting pipe to length, and
they provide a greater ease of alignment in assembly. However,
their calculated strength under internal pressure is approximately
2/3's the strength of welding neck flanges, and their life under
fatigue is 1/3 shorter. Slip-on Flanges are limited to 1/2" to 2½"
sizes in 1500lbs standard.
Threaded Flanges
Threaded Flanges are used for special applications. They can be
assembled without welding and can be used in extremely high
pressure services--at or near atmospheric pressure--where alloy
steel is essential for strength. Threaded flanges are not suited
for conditions involving temperature or bending stresses, or under
cyclic conditions where leakage through the threads may occur.
Weld Neck Flanges
Weld Neck Flanges have a long tapered hub and gradual transition of
thickness in the region of the butt weld joining them to the pipe.
The tapered hub provides important reinforcement to the flange and
resistance to dishing. This type of flange is preferred for severe
service conditions resulting from high pressure, sub-zero or high
temperatures.
Blind Flanges
Blind Flanges are used to blank off the ends of piping, valves and
pressure vessel openings. Blind Flanges can handle high stress from
internal pressure and bolt loading since the maximum stresses in
the blind flange are bending stresses at the center.
Socket Weld Flanges
Socket Weld Flanges were developed for use on small size high
pressure piping. With an internal weld, socket weld flanges are
stronger and have greater fatigue strength than double welding a
slip-on flange. Smooth bore conditions can be easily attained by
grinding the internal weld. This flange is commonly used in
chemical process piping.
Lap Joint Flanges
Lap Joint Flanges are used with lap joint stubs. Lap joint flanges
are commonly used in carbon or low alloy steel piping systems that
need to be frequently dismantled for inspection and cleaning. They
should not be used at any points where severe bending stresses
occur.
Grade | | C | Mn | Si | P | S | Cr | Mo | Ni | N |
316L | Min | - | - | - | - | - | 16.0 | 2.00 | 10.0 | - |
Max | 0.03 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 |
304 | Min | - | - | - | - | - | 18.0 | - | 8.0 | - |
Max | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | - | 10.5 | 0.10 |
304L | Min | - | - | - | - | - | 18.0 | - | 8.0 | - |
Max | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | - | 12.0 | 0.10 |