Weld Neck FLANGE
Weld Neck Flanges are designed for high-pressure and high-temperature applications. These flanges are distinguished by their long tapered hub, which provides excellent reinforcement at the joint and reduces stress concentration. They are welded to the pipe, ensuring a strong and leak-proof connection. Weld Neck Flanges are ideal for critical services in industries such as oil & gas, petrochemical, power generation, and shipbuilding. Their robust design and precise dimensions make them suitable for demanding applications where reliability and safety are essential.
RANGE, SCHEDULES & TYPES
Range of Weld Neck Flanges : ½” to 48” (15 NB to 1200 NB)
Schedules/Class of Weld Neck Flanges : 150#, 300#, 600#, 900#, 1500#, 2500#
Types of Weld Neck Flanges : Raised Face (RF) / Flat Face (FF) / Ring Type Joint (RTJ) / Long Weld Neck / Reducing Weld Neck / Custom Flanges
Type of Construction : ANSI B16.5 / B16.47 Series A & B / MSS SP-44 / API 605 / AWWA C207
Alloy Steel Weld Neck Flanges : ASTM A182 F11, F22, F91, F5
Carbon Steel Weld Neck Flanges : ASTM A105, A350 LF2, A694 F42–F70
Stainless Steel Weld Neck Flanges : ASTM A182 F304, F304L, F316, F316L, F309S, F310S, F321, F347, F904L
Low Temperature Carbon Steel Weld Neck Flanges : ASTM A350 LF2
Weld Neck FLANGE Gallery




