Socket Weld Flange

The socket weld flange is mainly used on high pressure pipes with smaller sizes than it. It is similar to slip-on flange in manufacturing, but its fatigue strength is much higher due to an internal weld. N-STEEL provides socket welding flanges in all material grades, specifications and sizes.

Size of Socket Weld Flange
3/8"~3"
DN10~DN80

Pressure
American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900 and CLASS 1500
European Series: PN 6, PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100

Flange Face Types
American Series: Raised Face (RF), Tongue (T), Groove (G), Female (F), Male (M), Ring Joints Face (RJ)
European Series: Type B (Raised Face), Type C (Tongue), Type D (Groove), Type E (Spigot), Type F (Recess), Type G (O-Ring Spigot), Type H (O-Ring Groove)

Materials of Socket Weld Flange
Carbon steel: A105
Alloy steel: A182 F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22
Stainless steel: A182 304-304H-304L-304N-304LN, 316-316H-316L-316N-316LN, 321-321H, 347-347H
Low temperature steel: A522 A707 Grade L 1-L 2-L 3-L 4-L 5-L 6-L 7-L 8
High performance steel: A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70

Standards of Socket Weld Flange
GB/T9112-2000, GB/T9117.1-2000, GB/T9117.2-2000, GB/T9117.3-2000, GB/T9117.4-2000, GB/T9124-2000
SH/T3406-1996
HG/T20592-2009, HG/T20614-2009, HG/T20615-2009, HG/T20623-2009, HG/T20635-2009
ASME B16.5-2009
EN1092-1-2007, EN1759-1-2004
BS1560-3.1-1989, BS4504-3.1-1989
AFNOR NF E29-200-1-2007
ISO7005-1-1992
JIS B2220-2004

Industrial Processes of Socket Weld Flange
Die forging and Machining

Industries Served
Power generation, petroleum, natural gas, chemical, shipbuilding, heat supply, papermaking, metallurgy, etc.