Welding neck flanges 300# ASTM A105N B16.5

P280GH weld neck flange refers to a flange connection method that uses P280GH material as the base material and forms one or more layers of P280GH material welding layers on the flange surface through the butt welding process to improve the flange’s high temperature resistance, high pressure resistance and corrosion resistance.

ASTM A182 F304 600LB slip on flanges are very popular type of flanges because of the excellent functions and high pressure.ASME B16.47 Series A & B are American Standard for large dimension flanges.According to ASME B16.47 Series A& B,the smallest size of flanges is 22 in.

It is used to insert the pipe into the inner hole of flange, as the flange inner diameter is little bigger than the pipe’s outer diameter, pipe and flange could be connected by lap welding at the top and bottom of the flange. The slip-on flange is a simple and excellent alternative to a weld neck as it does not have a weld bevel, and therefore allows the pipe to be adjusted in length relative to its position of the flange.

A105 FF slip on flange is a commonly used pipeline connection element, mainly made of carbon steel, and connected to pipelines or other flanges by flat welding. The structure of the slip on flange is relatively simple.

Flange provides a long tapered hub for welding to pipes , it is used in high pressure systems and suitable for both cold and hot temperatures.

orged steel flange is a disc-shaped piece of equipment used to connect a pipe to fittings or valve or other component to form a pipework system. Usually flange has been attached to pipe or tube end to, and then a gasket is inserted in the middle to form a seal. Finally they are joined together with bolts and nuts.

Slip-On flanges are commonly lower in price than weld-neck flange.However, customers should bear in mind that this initial cost saving may be diminished by the additional cost of the two fillet welds required for proper installation.

Stainless steel socket flanges are installed during pipeline construction and connected to another pipeline through bolts to achieve a tight connection of the pipeline.

The difference between ASME/ANSI and API

Large diameter flat welding flange has less high-pressure suitability compared to its weld neck counterpart. The basic ring style is suitable for the occasion of low pressure. The butt weld category of the flange is known as a weld neck flange. It suits the occasion of high temperature and pressure as defined in the ASME B16.47 code.

A182 F304 forged flanges are stainless steeel flanges,ASME B16.5 SW flanges are socket weld flanges following American Standard specifications.

CL 600 slip on flanges are commonly used type of flanges.ASTM A182 F316L is a popular grade for stainless steel.Stainless steel flanges are popular because of the an-ti corrosive function.Stainless steel flanges can used over 50 years.

Carbon steel flange, that is, the body material is carbon steel plate or end flange connection. The flanges containing carbon steel are called carbon steel flanges. Common materials are carbon steel ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH. Besides carbon steel flanges, we also supply alloy steel flanges and stainless steel flanges .

900LB slip on flange can slip on the pipes and welded with the pipes.Stainless steel flanges are popular because of the an-ti corrosive function.Stainless steel flange can used over 50 years.Flanges have many pressures:CL150, CL300, CL600, CL900, CL1500, CL2500.

DN150 SW flange is a 6in flange used to socketed with the pipes and then welding on pipes.CL150 forged flange is the lowest pressure flange.Flanges have many pressures:CL150, CL300, CL600, CL900, CL1500, CL2500.

Socket Weld Flange contain a shoulder on the flange inside that acts as a guide to set the depth at which the pipe is welded to the flange.

The common material grade of stainless steel ASTM A182 contains F304/304L/304H, 316/316L, 321, 310S, 317,347,904L， 1.4404, 1.4437.

The purpose of these is to block off a section of pipe or a nozzle on a vessel that is not used. (A nozzle is typically a pipe coming out of a vessel and is usually flanged so it can be connected to valves or piping). Many times a nozzle will be blanked off with a blind flange for pressure tests in a plant, or simply because the customer does not need all the nozzles that were supplied on the tank.

ASME B16.5 flange is a flange made accoding to American matal standaed.Class 150 WN flange is the lowest pressure of flange.Flanges have many pressures:CL150, CL300, CL600, CL900, CL1500, CL2500.

Socket weld flange can socket with the end of pipe,and welding on the pipe.Stainless steel flanges are popular because of the an-ti corrosive function.Stainless steel pipe fittings can used over 50 years.

The bore of the slip on will give ample amount of space for the matching pipe. This allows for enough working space for the welder and fabricator to make the connection.Slip-On flanges are commonly lower in price than weld-neck flange.

ASME B16.5 forged flanges are high pressure flansges inculding pressures 150LB,300LB,600LB,900LB,1500LB,2500LB.SS316 CL300 flanges is a kind of stainless steel CL300 flanges.Other popular grades of stainless steel are SS316L,SS304/304L.

What is a weld neck flange and what about its dimensions?

The connection method of A182 F11 socket flange is to insert the pipe into the socket of the flange, and then seal it with welding or use a sealing gasket. This connection method is relatively strong and can adapt to the thermal expansion and contraction of the pipe to a certain extent.

Usage of a weld neck flange

Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe.

Alloy Steel: ASTM A182 F11 / 12 / 5 / 9 / 91 / 92
Stainless Steel: ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317,347,904L, 1.4404, 1.4437.