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Weld Neck Flange

(1.0)
Supplier From India
Jul-18-23

A weld neck flange is a type of flange that is joined to a piping system by butt welding. The flange consists of a circular fitting with a protruding rim around the circumference. The rim has a series of drilled holes that permit the flange to be affixed to another flange with bolts. The flange also has a long tapered hub that gradually meets the wall thickness of the pipe or fitting.

Technical Specifications:
Materials: Carbon steel, stainless steel, duplex steel, alloy steel, etc.
Dimensions: 1/2" to 24"
Class range: Class 150 to 2500 (ANSI/ASME B16.5)
Type: RF,FF,RJT
PN range: PN 2.5 to PN 250
Hub length: Short hub (SH), Long hub (LH), Extra long hub (XH)
Finish: Black, mill finish, painted, etc.

Advantages of Weld Neck Flanges:
Increased strength and durability
Reduced stress concentration
Smooth transition from flange thickness to pipe or fitting wall thickness
Easy to radiograph for flaw detection
Can be used in high pressure and high temperature applications

Applications:
Power plants
Chemical plants
Oil and gas industries
Water treatment plants
HVAC systems
Other industrial applications

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MOQ: 100  Kilograms
Sample Available
  Metal Aids India
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Made available by us is a wide and commendable range of Weld Neck Flanges (WNRF). All our products comes with welding neck, which is hot formed from a circular section of steel plate having a small co-axial hole in the center due to which these are durable. These products find their wide applications in engineering and construction industries because of rustproof construction, excellent finishing and lightweight.

Specifications:

Stainless Steel: ASTM A 182 and A 240
Grade: F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H and 904L
Duplex Stainless Steel: UNS S31803 and 2205
Super Duplex Stainless Steel: UNS S32750
Carbon Steel: ASTM A 105 and ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9 and F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22 and C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8\\\\\\\" NB to 48\\\\\\\"NB
Class: 150, 300, 400, 600, 900, 1500 & 2500

Standards available:

ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36 and ANSI B16.48
DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638 and DIN2673
B.S: BS4504, BS4504, BS1560 and BS10
GOLD Member
Feb-24-25
Weld Neck Flanges

Weld Neck Flanges

(2.9)
Ask for price
MOQ: 100  Kilograms
Sample Available
  Metal Aids India
Supplier From Mumbai, Maharastra, India
Supplier Of Flanges
 
Made available by us is a wide and commendable range of Weld Neck Flanges (WNRF). All our products comes with welding neck, which is hot formed from a circular section of steel plate having a small co-axial hole in the center due to which these are durable. These products find their wide applications in engineering and construction industries because of rustproof construction, excellent finishing and lightweight.

Specifications:

Stainless Steel: ASTM A 182 and A 240
Grade: F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H and 904L
Duplex Stainless Steel: UNS S31803 and 2205
Super Duplex Stainless Steel: UNS S32750
Carbon Steel: ASTM A 105 and ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9 and F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22 and C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8" NB to 48" NB
Class: 150, 300, 400, 600, 900, 1500 & 2500

Standards available:

ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36 and ANSI B16.48
DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638 and DIN2673
B.S: BS4504, BS4504, BS1560 and BS10
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Carbon Steel - ASTM A-105, A-350 LF2, IS 2062, AS 516 Gr. 70, C45
Alloy Steel - ASTM A-182 F5, F9, F11, F12, F21, F22.
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A welding neck flange (WN) features a long tapered hub that can be welded with a pipe.

This flange type is used, normally, in high-pressure and high/low temperatures applications that require an unrestricted flow of the fluid conveyed by the piping system (the bore of the flange matches with the bore of the pipe).

The absence of pressure drops prevents negative effects as turbulence and erosion/corrosion of the metals in the proximity of the flanged joints.

The tapered hub allows a smooth distribution of the mechanical stress between the pipe and the weld neck flange and facilitates the execution of radiographic inspections to detect possible leakages and welding defects.

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