NEHA METAL AND ALLOYS is a Professional steel flanges and forgings manufacturer in India, specialize in manufacturing steel valve, flanges bolts, steel flanges, steel forgings range of flange and forging types and sizes
Weld Neck Flanges are drilled(machined) with the wall thickness of the flange having the same dimensions of the matching pipe, the lighter the pipe is, the larger the bore, conversely, the heavier the pipe, the small the bore, they are normally used for high-pressure, cold or hot temperature
Tube OD sizes: 3/8 to 36 inches
Uses of weld neck flanges:
• The weld neck flange is very resistant to dishing and has a very sturdy connection because it has the pipe along with the tapered hub.The flanges are ideal for extreme fluctuations of temperature.
• They are ideal in environments where there may be a lot of bending and handling of the flanges.
• Preferred in an environment with extreme temperature conditions.
• This type of flange is preferred for every severe service condition - resulting from high pressure or from sub-zero or elevated temperature.
• They are used in situations where loading conditions are substantially constant or fluctuate between wide limits.This is probably the best welding flange available because of its high, heavy neck.
• Highly recommended wherever a sound welded joint connection is needed.
Nickel Alloy Weld neck Flanges
• ASTM / ASME SB 564 / 160 / 472
• UNS 10276 (HASTELLOY C 276 Weld neck Flanges)
• UNS 2200 (NICKEL 200 Weld neck Flanges)
• UNS 2201 (NICKEL 201 Weld neck Flanges)
• UNS 4400 (MONEL 400 Weld neck Flanges)
• UNS 8020 (ALLOY 20 Weld neck Flanges)
• UNS 8825 INCONEL 825 Weld neck Flanges)
• UNS 6600 (INCONEL 600 Weld neck Flanges)
• UNS 6601 (INCONEL 601 Weld neck Flanges)
• UNS 6625 (INCONEL 625 Weld neck Flanges)
Copper Alloy Weld neck Flanges
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) - Cupro Nickel Weld neck Flanges
C 71500 (CU -NI- 70/30) - Copper Nickel Weld neck Flanges
UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200Duplex Steel Weld neck Flanges
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
Alloy Steel Weld neck Flanges - AS Weld neck Flanges
ASTM SA 182 F1/F5/F9/F11/F22/F91
Carbon Steel Weld neck Flanges - CS Weld neck Flanges
ASTMA 105 Gr. F42/46/52/56/60/65/70
Mill Test Certificate as per EN 10204 / 3.1B
Duplex Stainless Steel Weld neck Flanges – Duplex SS Weld neck Flanges
ASTM A 182
F 51 UNS S31803
ASTM / ASME A/SA 182 UNS
F 44, F45, F51, F53, F55, F60, F61