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Yuhong Group Co.,Ltd

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China ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind
China ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind

  1. China ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind
  2. China ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind
  3. China ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind
  4. China ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind

ASTM A182 F55 / UNS S32760 / 1.4501 Super Duplex Steel Flange Forged Steel Blind

  1. MOQ: 1PC
  2. Price:
  3. Get Latest Price
Payment Terms L/C,T/T
Delivery Time 7 DAYS
Packaging Details Ply-wooden Case, Pallet
Product Name Duplex Steel Flange
Standard ASTM A182 / ASME SA182
Material F55, UNS S32760, 1.4501
OD 1/2" to 48"
WT Sch 5S to Sch XXS
Class 150#, 300#, 400#, 600#, 900#, 1500#, 2500#
Type WN, SO, BL, SW, LWN
Face RF, FF, RTJ
Application Petroleum,chemical,etc,fittings And Connection,beer
High Light ASTM A182 F55 Super Duplex Steel Flange, UNS S32760 Blind Flange, BLRF Flange
Brand Name YUHONG
Model Number ASTM A182 F55 Super Duplex Steel Blind Flange
Certification ISO, API , ABS, DNV, GL , LR, NK
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,T/T Delivery Time 7 DAYS
Packaging Details Ply-wooden Case, Pallet Product Name Duplex Steel Flange
Standard ASTM A182 / ASME SA182 Material F55, UNS S32760, 1.4501
OD 1/2" to 48" WT Sch 5S to Sch XXS
Class 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Type WN, SO, BL, SW, LWN
Face RF, FF, RTJ Application Petroleum,chemical,etc,fittings And Connection,beer
High Light ASTM A182 F55 Super Duplex Steel Flange, UNS S32760 Blind Flange, BLRF Flange Brand Name YUHONG
Model Number ASTM A182 F55 Super Duplex Steel Blind Flange Certification ISO, API , ABS, DNV, GL , LR, NK
Place of Origin CHINA
High Light Super Duplex Steel FlangeASTM A182 F55 Blind FlangeForged Steel Blind Flange

ASTM A182 F55 BLIND FLANGE, UNS S32760 SUPER DUPLEX STAINLESS STEEL FLANGE

 

 

ASTM A182 F55 Super Duplex steel blind flange is a solid forged flange manufactured from UNS S32760 (also known as 1.4501), designed to seal pipe ends, pressure vessels, or valve openings. This tungsten-alloyed grade delivers over 550 MPa yield strength and exceptional resistance to chloride pitting and crevice corrosion. Each flange is solution annealed and water quenched to achieve a balanced ferrite-austenite structure. Fully compliant with NACE MR0175 for sour service, it is dimensioned per ASME B16.5 and rated for high-pressure classes. These flanges are critical in subsea systems, desalination plants, and chemical processing where maximum durability and corrosion protection are required.

 

 

Chemical Composition % of ASTM A182 F55 Super Duplex Steel WNFF Flange

Chemical Composition Limits
Weight% C Mn P S Si Cr Ni Mo N W
Super Duplex F55 0.03 max 1.00 max 0.03 max 0.01 max 1 max 24-26 4.5-6.5 3-4 0.25 0.08-0.20

 

 

Mechanical properties of ASTM A182 F55 Super Duplex Steel WNFF Flange

Alloy Tensile Strength N/mm² Yield Strength 0.2% N/mm² Elongation Hardness HB
Super Duplex F55 860 720 min 16 min 270 max

 

 

Key Advantages of ASTM A182 F55 (UNS S32760 / 1.4501) Super Duplex Steel
1. Exceptional Strength-to-Weight Ratio
F55 offers minimum yield strength of 550 MPa, approximately double that of 316/316L stainless steel. This allows for thinner wall sections and lighter flange weights, reducing material costs and structural support requirements.
2. Superior Corrosion Resistance
With a PREN exceeding 40, F55 provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-rich environments. The addition of tungsten and copper significantly enhances performance in seawater, brackish water, and aggressive chemical media.
3. Sour Service Compliance
Fully NACE MR0175/ISO 15156 certified, making it suitable for oil and gas environments containing hydrogen sulfide (H₂S). This eliminates the need for corrosion inhibitors or additional coatings in sour wells.
4. Fatigue and Erosion Resistance
High hardness and strength provide superior resistance to erosion, cavitation, and fatigue cracking in high-velocity flow conditions, pumping systems, and vibrating pipeline networks

 

 

Application

  • Oil & Gas
  • Chemical Processing 
  • Desalination Plants 
  • Power Generation
  • Marine Engineering

 

 

PT TEST

 

 

Company Details

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 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    2007

  • Total Annual:

    50M-70M

  • Employee Number:

    50~850

  • Ecer Certification:

    Verified Supplier

  Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...   Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...

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  • Yuhong Group Co.,Ltd
  • 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
  • https://www.steelseamlesspipe.com/

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