STAINLESS STEEL WN FLANGE
Belong to the American standard flange standard system. Is the American standard flange (also known as ANSI flange) one of the manifestations of equipment or pipes commonly used in the flange. The following is the ANSI WN high neck flange, the relevant pressure, the various parts of the size and icon.
Stainless Steel WN Flanges Meterial Grade
201, 202, 301, 304, 304L, 310S, 316, 316L,316Ti, 317, 317L, 321,
347,904L Duplex Stainless Steel, S31803/2205, S32750/2507
ALLOY.WN FLANGES SUPPLIERS & MANUFACTURERS
STAINLESS STEEL WN FLANGE DELIVERY & PACKING:DELIVERY:IN
7-30 DAYS,PACKING:PLASTIC BAG OR WOODEN CASES OR ACC TO CUSTOMER REQUEST.
Steel WN Flanges features
Stainless steel wn flange is a part of a pipe that is connected
to a pipe, connected to a pipe end, with a hole in the flange and a bolt that
allows the two flanges to be tightened.
A flanged pipe fitting is a pipe with a flange (flange or
plate), which can be made of cast or screwed or welded. Blue, a gasket and a
number of bolts and nuts.
Gasket placed between the two flange sealing surface, tighten
the nut, the gasket on the surface of the specific pressure to a certain value
after the deformation, and fill the sealing surface rugged Some of the pipe fittings
and equipment has its own flanges, but also belong to the flange connection.
Flange connection is an important way to connect the
construction of the pipeline.
Flange connection easy to use, able to withstand greater pressure. In
industrial piping, the use of flange connections is very extensive.
In the family, the pipe diameter is small, and is low, can not
see the flange connection. If in a boiler room or production site, full of
flanged pipes and equipment.
Steel WN Flange Precautions for use:
1, in order to prevent the heating caused by the flange cover
between the eye corrosion, welding current should not be too much, less than about 20% of carbon steel electrode, arc should not be
too long, cold between the layers to narrow the weld is appropriate.
2, the electrode should be used to dry, titanium calcium type should be dried
at 150 ℃ for 1 hour, low a hydrogen type should be 200-250 ℃ drying 1 hour (can not be repeated drying, or easy to peel the skin peel), to
prevent Welding paste oil and other dirt, so as not to cause the weld to
increase the carbon content and affect the quality of welding.
3, Stainless Steel WN Flange pipe welding, by repeated heating precipitation of
carbides, reducing corrosion resistance and mechanical properties.
4, chrome stainless steel wn flanges after welding hardening American standard
flange larger, prone to crack.
If the same type of chromium stainless steel electrode (G202,
G207) welding, must be more than 300 ℃ preheating and 700 ℃ after the slow cooling treatment. If the weldment can not be
post-weld heat treatment, you should use stainless steel flange fittings
electrode (A107, A207).
5, Stainless Steel WN Flange, in order to improve the corrosion resistance and
weldability and the appropriate increase in the amount of stability elements
Ti, Nb, Mo, welding better than chromium stainless steel flange better. When
using the same type of chromium stainless steel flange electrode (G302, G307),
should be more than 200 ℃ preheat and
800 ℃ after tempering around the tempering treatment. If the weldment
can not be heat treated, you should use stainless steel flange fittings (A107,
6, stainless steel flange fittings, butt welding flange has good corrosion
resistance and oxidation resistance, widely used in chemical, fertilizer, oil,
medical machinery manufacturing.