Specifications
Certification :
ISO, API , ABS, DNV, GL , LR, NK
High Light :
ASTM A182 F53 Super Duplex Steel Flange, Duplex 2507 / UNS S32750 Weld Neck Flange
Packaging Details :
Ply-wooden Case/Pallet
Size :
1/2" to 48"
Face :
RF, FF, RTJ
Place of Origin :
CHINA
MOQ :
1PC
Brand Name :
YUHONG
Model Number :
ASTM A182 F53 Super Duplex Weld Neck Flange
Delivery Time :
7 DAYS
Product Name :
Super Duplex Flange
Material :
Super Duplex 2507 / F53 / UNS S32750
WT :
Sch 5S to Sch XXS
Type :
PL, WN, SO, BL, SW, LWN
Application :
Petroleum, Chemical, Onshore adn Offshore, Shipbuilding, etc
Standard :
ASTM A182 / ASME SA182
Class :
150#, 300#, 600#, 900#, 1500#, 2500#
Description

ASTM A182 F53 / UNS 32750 / Super Duplex 2507 Weld Neck Flange WNRF Flange

A Super Duplex 2507 Weld Neck Flange is a high-strength, corrosion-resistant pipe connecting component manufactured from forged super duplex stainless steel grade UNS S32750 (ASTM A182 Grade F53). "Weld Neck" is a long, tapered hub that transitions smoothly into the pipe wall via a single butt-weld joint. This flange is defined by its balanced dual-phase microstructure (approximately 50% austenite / 50% ferrite), which provides exceptional mechanical strength and outstanding resistance to localized corrosion in highly aggressive environments. It is fully compliant with the ASTM A182 standard for forged components used in high-temperature and high-pressure services.

Chemical Composition of ASTM A182 F53 Super Duplex Steel Flange Duplex 2507 Weld Neck Flange

Element % C Mn P S Si Cr Ni Mo N Cu
Super Duplex F53 0.03 max 1.2 max 0.035 max 0.015 max 0.8 max 24-26 6-8 3-5 0.24-0.32 0.5 max

Mechanical properties of ASTM A182 F53 Super Duplex Steel Flange Duplex 2507 Weld Neck Flange

Alloy Tensile Strength ksi Proof Strength 0.2% ksi (min)

Elongation (%) (min)

Elongation (%) (min)

Super Duplex F53 Annealed Condition

110-135

80

15

16

ASME B16.5 Super Duplex 2507 Flanges EN TYPE DIN

WN – Welding Neck

EN-TYPE 11

DIN 2631
DIN 2632
DIN 2633
DIN 2634
DIN 2635
BL – Blind EN-TYPE 05 DIN 2527
SO – Slip On EN-TYPE 01/12

LJ – Lap Joint

EN-TYPE 02/04

DIN 2641
DIN 2642
DIN 2655
DIN 2656
LWN – Long Welding Neck / Integral EN-TYPE 21
Welding Collars EN-TYPE 32/34
Super Duplex 2507 Flat Flange for Welding DIN 2573
DIN 2576
SW – Socket Weld EN-TYPE 14
THR – Threaded EN-TYPE 13 DIN 2566
Super Duplex 2507 Lap Joint Short Stub End DIN 2673
Super Duplex Steel 2507 Orifice Flanges, Super Duplex SS 2507 Swivel Flanges, Spades, Spacer Rings
Super Duplex 2507 F55 Spectable Blinds, API 6A, JIS B2220, VSM, NFE, BS10/BS4504, GOST

Application

You will find this specific flange in environments where both mechanical strength and corrosion resistance are paramount:

  • Oil & Gas: Subsea manifolds, offshore platform risers, and high-pressure wellhead equipment (handling sour gas/CO₂/H₂S).

  • Chemical Processing: Heat exchangers and piping carrying chlorides, acetic acid, or sulfuric acid.

  • Marine/Desalination: Seawater cooling systems and reverse osmosis high-pressure piping.

  • Pulp & Paper: Bleaching plants (handling chlorine dioxide).

NO CRACK (PT TEST)

Super Duplex 2507 Flange ASTM A182 UNS S32750 / F53 Super Duplex Weld Neck Flange

Super Duplex 2507 Flange ASTM A182 UNS S32750 / F53 Super Duplex Weld Neck Flange

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Super Duplex 2507 Flange ASTM A182 UNS S32750 / F53 Super Duplex Weld Neck Flange

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Certification :
ISO, API , ABS, DNV, GL , LR, NK
High Light :
ASTM A182 F53 Super Duplex Steel Flange, Duplex 2507 / UNS S32750 Weld Neck Flange
Packaging Details :
Ply-wooden Case/Pallet
Size :
1/2" to 48"
Face :
RF, FF, RTJ
Place of Origin :
CHINA
Contact Supplier
Super Duplex 2507 Flange ASTM A182 UNS S32750 / F53 Super Duplex Weld Neck Flange
Super Duplex 2507 Flange ASTM A182 UNS S32750 / F53 Super Duplex Weld Neck Flange
Super Duplex 2507 Flange ASTM A182 UNS S32750 / F53 Super Duplex Weld Neck Flange

Yuhong Group Co.,Ltd

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