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ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
Specifications
Brand Name :
YUHONG
Model Number :
ASTM A182 F51 Duplex Steel Blind Flange
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1PC
Payment Terms :
L/C,T/T
Delivery Time :
7 DAYS
Packaging Details :
Ply-wooden Case/Pallet
Product Name :
Duplex Steel Flange
Dimension :
ASME B16.5, ASME B16.47, ASME B16.48
Standard :
ASTM A182 / ASME SA182
Material :
F51
O.D. :
1/2" to 48"
Class :
150#, 300#, 400#, 600#, 900#, 1500#, 2500#
Flange Face :
FF, RF, RTJ
High Light :
ASTM A182 F51 Duplex Steel Blind Flange, Duplex 2205 BLRF Flange
Description

ASTM A182 F51 / UNS S32205 Duplex Steel Blind Flange AISI B16.5 BLRF Flange

A blind flange is a solid disc used to terminate the end of a piping system or close a valve opening. Unlike other flanges, it has no bore. It provides mechanical strength to withstand internal pressure (end load) while allowing future access.
ASTM A182 F51 Blind Flange (Duplex Stainless Steel) ASME B16.5 BLRF Flange – A solid, disc-shaped pipe flange manufactured from Duplex 2205 (UNS S31803) forging material per ASTM A182 Grade F51, designed to seal the end of a piping system (blind flange) with a raised face (RF) gasket seating surface, and dimensioned according to ASME B16.5 for pressure classes NPS ½ through 24 or ASME B16.47, B16.48 for larger flanges over 24".

ASTM A182 F51 Blind Flange Duplex Steel Flange Chemical Composition

CMnSiPSCrMoNiNFe
0.030 max2.00 max1.00 max0.030 max0.020 max22.0 – 23.03.0 – 3.54.50 – 6.500.14 – 0.2063.72 min

ASTM A182 F51 Blind Flange Duplex Steel Flange Mechanical Properties

Density (g/cm 3)Density (lb/in 3)Melting Point (°C)Melting Point (°F)
7.8050.2851420 – 14652588 – 2669

Other Types of Duplex Steel Flange

Duplex 2205 FlangesEN TYPEDIN

WN – Welding Neck

EN-TYPE 11

DIN 2631
DIN 2632
DIN 2633
DIN 2634
DIN 2635
BL – BlindEN-TYPE 05DIN 2527
SO – Slip OnEN-TYPE 01/12

LJ – Lap Joint

EN-TYPE 02/04

DIN 2641
DIN 2642
DIN 2655
DIN 2656
LWN – Long Welding Neck / IntegralEN-TYPE 21
Welding CollarsEN-TYPE 32/34
Super Duplex 2507 Flat Flange for Welding DIN 2573
DIN 2576
SW – Socket WeldEN-TYPE 14
THR – ThreadedEN-TYPE 13DIN 2566
Super Duplex 2507 Lap Joint Short Stub End DIN 2673

Application

  • Because duplex F51 is expensive compared to carbon steel, you typically specify this flange for:
  • Offshore platforms: High chloride + high cyclic loading.
  • Desalination plants: Hot chloride seawater.
  • Chemical tank farms: Acetic, formic acids, or caustic environments.
  • Flue gas desulfurization (FGD) units.
  • Marine exhaust systems.

ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange

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ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM A182 F51 Duplex Steel Blind Flange
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1PC
Payment Terms :
L/C,T/T
Contact Supplier
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange
ASTM A182 F51 Duplex 2205 Blind Flange ASME B16.5 BLRF Flange Duplex Steel Flange

Yuhong Group Co.,Ltd

Verified Supplier
14 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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