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ASME B16.5 Forged Flanges SS316 CL300 Flanges

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.

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ASME B16.5 forged flanges are flanges manufactured according to American Standard.Stainless steel SS316 CL300 flanges are very popular all over the word beacuse of the superior functions.

ASME B16.5 Standard inculding WN,SO,SW,THD,LAPJ,BL types of flanges.Customers could choose the flanges based on their demand.Flanges can be divided into forged carbon steel flange and forged stainless steel flange according to the material.


High Pressure Flanges:Weld Neck (WN) Flanges,Socket Wedl (SO) Flanges

A weld neck flange (also named as high-hub flange or tapered hub flange) is the most common type of flange. Weld Neck Flange is easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.

Slip on flange,always known as SO flange. SO flanges slip over pipes and are designed to bit slightly bigger on the inside than the pipe. They connect to the pipe through a fillet weld at the flange top and bottom. 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.


Stainless Steel VS Galvanized Steel

Stainless steel and galvanized steel are both used in corrosive environments.As stainless steel is expensive,many customers choose galvanized steel in equivalent.



Shape Weld Neck Flange ( WN),Slip-on Flange (SO)
Size Range 1/2″ – 48″/ DN15 – DN1200
Pressure Rating Class 150, 300, 600, 900, 1500, 2500lb
Standard ASME B16.5, ASME B16.47 Series A/B, EN 1092-1, API 605, MSS SP-44, DIN 2627, DIN 2527, DIN 2558, DIN 2576, DIN 2641, DIN 2655, DIN 2656, DIN2573
Carbon Steel ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH
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.
Duplex Stainless Steel ASTM A182 F51, F53, F44




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