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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
  • 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
Product Details:
Place of Origin: CHINA
Brand Name: YUHONG
Certification: API, PED
Model Number: ASTM A182 F53
Payment & Shipping Terms:
Minimum Order Quantity: 1pcs
Price: Negotiable
Packaging Details: PLY-WOODEN CASE
Delivery Time: According to quantity
Payment Terms: ,L/C,T/T
Supply Ability: 100Tons/Month
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Detailed Product Description
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
Highlight:

F53 WNRF Flange

,

WNRF Class 150 Flange


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


Tag:

forged steel flanges,

carbon steel flanges,

stainless steel flanges

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