Specifications
Brand Name :
YUHONG
Place of Origin :
CHINA
Model Number :
ASTM A182 F53
Certification :
API, PED
MOQ :
1pcs
Price :
Negotiable
Payment Terms :
,L/C,T/T
Supply Ability :
100Tons/Month
Delivery Time :
According to quantity
Packaging Details :
PLY-WOODEN CASE
Material Standard :
ASTM A182 F53 / UNS S32750
Face Finish :
Raised Face (RF) 125-250 µin AARH per ASME B16.5
Heat Treatment :
Solution Annealed @ 1020-1100°C + Water Quenched
NDT Inspection :
100% UT per ASTM A388 + PT per ASME V Art.6
NACE Compliance :
MR0175/ISO 15156 Level VI (H₂S Partial Pressure > 0.3 psi)
Corrosion Resistance :
Critical Pitting Temp: >100°C per ASTM G48 Method A
Description


ASTM A182 F53 Super Duplex Stainless Steel Weld Neck Raised Face Flange


Product Overview


ASTM A182 F53 (UNS S32750) Super Duplex Stainless Steel Weld Neck Raised Face (WNRF) flanges deliver exceptional strength and chloride corrosion resistance. Ideal for offshore, chemical processing, and sour gas pipelines operating at temperatures from -60°C to 300°C. Manufactured under ISO 9001:2015 quality system.


Chemical Composition (Weight %)


Element Min Max Typical Value
Chromium (Cr) 24.0% 26.0% 25.2%
Nickel (Ni) 6.0% 8.0% 7.0%
Molybdenum (Mo) 3.0% 4.0% 3.8%
Nitrogen (N) 0.24% 0.32% 0.28%
Manganese (Mn) - 1.2% 0.5%
PREN① ≥40
42


Mechanical Properties


Property Value Test Standard
Tensile Strength ≥ 795 MPa (115 ksi) ASTM A370
Yield Strength (0.2% Offset) ≥ 550 MPa (80 ksi) ASTM A370
Elongation (% in 50mm) ≥ 15% ASTM A370
Hardness (Brinell) ≤ 290 HBW ASTM E10
Charpy V-Notch Impact ≥ 100 J @ -46°C ASTM A370


Key Advantages of F53 WNRF Flanges


Feature Competitive Edge
Corrosion Resistance Resists pitting/crevice corrosion in seawater (Cl- > 20,000 ppm)
Stress Corrosion Cracking (SCC) Resistance Exceeds NACE MR0175/ISO 15156 requirements for H2S environments
High Strength 2x yield strength vs. 316L stainless steel, enabling thinner/lightweight designs
Weldability Low carbon content (0.03% max) prevents sensitization during welding
Dimensional Precision CNC-machined sealing faces (Ra ≤ 3.2 μm) ensure leak-free ASME B16.5 RF


Application Fields



Oil & Gas:

  • Subsea Christmas tree components
  • Sour gas gathering pipelines (H2S partial pressure > 0.3 psi)
  • FPSO (Floating Production Storage Offloading) system


Chemical Processing:

  • Chlorine dioxide bleaching plants
  • Sulfuric acid coolers (65-98% concentration)


Power Generation:

  • Seawater-cooled condenser headers
  • Flue gas desulfurization (FGD) scrubbers


Desalination Plants:


  • High-pressure RO (Reverse Osmosis) membrane housings


Send your message to this supplier
Send Now

ASTM A182 F53 WNRF Flange Class 150 To 2500 High Pressure Pipe Connection

Ask Latest Price
Brand Name :
YUHONG
Place of Origin :
CHINA
Model Number :
ASTM A182 F53
Certification :
API, PED
MOQ :
1pcs
Price :
Negotiable
Contact Supplier
ASTM A182 F53 WNRF Flange Class 150 To 2500 High Pressure Pipe Connection
ASTM A182 F53 WNRF Flange Class 150 To 2500 High Pressure Pipe Connection
ASTM A182 F53 WNRF Flange Class 150 To 2500 High Pressure Pipe Connection
ASTM A182 F53 WNRF Flange Class 150 To 2500 High Pressure Pipe Connection

Yuhong Group Co.,Ltd

Verified Supplier
13 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
Contact Supplier
Submit Requirement