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ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange

ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange

  • ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange
  • ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange
  • ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange
  • ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange
ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number: ASTM A182 F347 Stainless Steel Weld Neck Flange
Payment & Shipping Terms:
Minimum Order Quantity: 1PC
Packaging Details: Ply-wooden Case / pallet
Delivery Time: 7 DAYS
Payment Terms: L/C,T/T
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Detailed Product Description
Dimensions: ANSI Flange, ASME Flange, BS Flange, DIN Flanges, EN Flange Standard: B16.5, B16.47 Series A, Series B
Material: F347 / UNS 34700 / EN 1.4550 Size: 1/2" To 48"
Thickness: Sch5S To Sch.XXS Class: 150#, 300#, 400#, 600#, 900#, 1500#, 2500#
Type: Weld Neck Flange Surface: RTJ
Packaging: Plywood Case /Pallet
High Light: ASTM A182 F347 Stainless Steel Flange , Weld Neck Flange, WNRTJ Forged Flange

ASTM A182 F347 / 1.4450 Stainless Steel Flange UNS S34700 Forged WN RTJ Flange
 
 
ASTM A182 F347 / 1.4550 Stainless Steel Weld Neck RTJ Flange is a high-strength, forged steel pipe connector designed for permanent attachment to piping systems via a full-penetration butt weld. It features a specialized metal-sealing grooved face and is manufactured from a niobium-stabilized austenitic stainless steel, making it specifically engineered for severe high-temperature, high-pressure, and corrosive service environments.

 
 

How it works?
When this flange is welded to a pipe (WN) and bolted to an opposing RTJ flange with a metal ring gasket placed in the grooves, the tightening of the stud bolts forces the two flanges together. The gasket is plastically deformed into the groove walls, creating a leak-proof seal that relies solely on the compressive strength of the metal, rather than on soft gasket fillers.
This makes the definition of its primary purpose: a permanent, fatigue-resistant pipeline joint that maintains a positive, blowout-proof metal seal under extreme fluctuating temperatures and pressures, while resisting weld-decay corrosion due to its niobium-stabilized chemistry.

 
 
Equivalent Grade of ASTM A182 F347 / EN 1.4550 Stainless Steel Weld Neck Flange Forged WNRTJ Flange
GB
JIS
ASTM
GOST
EN
06Cr18Ni11Nb
SUS 347
F347 / S34700
08Х18Н12Б
1.4550
X6CrNiNb18-10

 
 
Chemical Composition of ASTM A182 F347 / EN 1.4550 Stainless Steel Weld Neck Flange Forged WNRTJ Flange

 
Grade/
Element

CrNiCMnPSSiCb&TaFe
34717.00 min.-19.00 max.9.00 min.-13.00 max.0.082.000.040.030.7510 x (C + N) min.-1.00 max.Balance

 

 

Mechanical properties of ASTM A182 F347 / EN 1.4550 Stainless Steel Weld Neck Flange Forged WNRTJ Flange

Yield Strength
0.2% Offset		Ultimate Tensile
Strength		Elongation
in 2 in.		Hardness
psi (min.)(MPa)psi (min.)(MPa)% (min.)(max.)
30,00020575,00051540201 Brinell
 

 

Typical Applications (Industries)
Due to its high-temperature stability and RTJ sealing reliability, this flange is widely used in:

  • Oil & Gas Upstream/Downstream: Wellheads, Christmas trees, flow lines, and refinery hydrotreaters.

  • Petrochemical: High-pressure process piping, cracking units, and reformers.

  • Power Generation: Superheater and reheater connections in thermal power plants.

  • Heat Exchangers & Pressure Vessels: Nozzle connections subject to cyclic thermal loading.

 
 
Dye Penetrant Test / PT
ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange
ASTM A182 F347 Weld Neck Flange / EN 1.4550 Stainless Steel Flange WNRTJ Flange

 

Tag:

forged steel flanges,

carbon steel flanges,

stainless steel flanges

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