Kisaan Steels Slip on Flanges

Slip on Flanges

The Socket Weld Flange is similar to a slip-on flange except it has a bore and a counter bore dimension. The counter bore is slightly lager than the outer diameter of the matching pipe, allowing the pipe to be inserted into the flange similar to a slip-on flange. The diameter of the smaller bore is the same as the inner diameter of the matching pipe. A restriction is built into the bottom of the bore which sets as a shoulder for the pipe to rest on. This eliminates any restriction in flow when using a socket welding flange.

Recommended for orifice flanges. These work as substitute for slip-on-flanges in the cases where the diameter of the tube is very small and working pressure is very high.

Class Size Class Size
150 1/2" to 60" 900 1/2" to 48"
300 1/2" to 60" 1500 1/2" to 36"
600 1/2" to 48" 2250 1/2" to 36"



Above 600 class can also be forged according to your requirements. + ANSI B16.5/ ASME B16.47 Series A (MSS SP44) & Series B (API 605) + Material - ASTM A105, LF2 In addition  Kisaan Steels provides: + 100% machined surface as per B16.5 + 100% traceability and material test reports.

Dimension Standards :

ANSI B 16.5, B 16.1, B 16.47 Series 'A' and 'B', MSS SP-44, JIS SK, 10K, 16K, DIN, BS 4504 or any other as per customer's requirements.


Material Grades :

ASTM A-105, ASTM A-350 LF-2, A182 F-304/F-304H/F-304L/ F-316L/ F-321/ F-347/F-316Ti, A 181 F-1/F-5/F-11/F-22, ASTM A182 F-5/F-9/F-11/F-22, AISI 304/410/420/3042 or any other IS, DIN, JIS or international standards in Carbon/ Alloy/ Stainless Steel.