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1/2" to 24" ASTM B462 UNS10276 WNRF Flanges Nickel Alloy Weld Neck Flanges

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1/2" to 24" ASTM B462 UNS10276 WNRF Flanges Nickel Alloy Weld Neck Flanges

Brand Name : YUHONG

Model Number : ASTM B462 UNS10276

Certification : API, PED

Place of Origin : CHINA

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 B462

UNS Number : N10276 (UNS10276)

Flange Specification : ASME B16.5

Flange Type : Weld Neck Raised Face (WNRF)

Tensile Strength : ≥ 690 MPa (100 ksi)

Corrosion Resistance : HCl, H₂SO₄, Cl₂ Media, Seawater, FGD Environments

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Professional Grade ASTM B462 UNS10276 WNRF Flanges for Extreme Corrosion Resistance


Introduction


ASTM B462 UNS10276 (Hastelloy C276) Weld Neck Raised Face (WNRF) flanges deliver unmatched corrosion resistance in aggressive chemical and high-temperature environments. Manufactured in full compliance with ASTM B462 for wrought nickel-alloy piping components and ASME B16.5 for dimensional standards, these flanges are engineered for critical applications in chemical processing, pollution control, and offshore systems.


Key Material Specifications



PropertySpecification
Material StandardASTM B462
UNS NumberN10276 (UNS10276)
Common NameHastelloy C276
Flange StandardASME B16.5
Face TypeRaised Face (RF)
ConnectionWeld Neck (WN)


Exact Chemical Composition (ASTM B462)



ElementMin (%)Max (%)Role
Nickel (Ni)Bal.-Base Metal, Corrosion Resistance
Chromium (Cr)14.516.5Oxidation Resistance
Molybdenum (Mo)15.017.0Pitting/Crevice Resistance
Iron (Fe)4.07.0Strength
Tungsten (W)3.04.5Corrosion Resistance
Cobalt (Co)-2.5High-Temp Stability
Manganese (Mn)-1.0Deoxidizer
Silicon (Si)-0.08Deoxidizer
Carbon (C)-0.01Prevents Sensitization
Sulfur (S)-0.03Impurity Control


Mechanical Properties (Typical Values at 20°C)


PropertyValueASTM B462 Requirement
Tensile Strength≥ 690 MPa (100 ksi)≥ 690 MPa
Yield Strength (0.2% Offset)≥ 283 MPa (41 ksi)≥ 283 MPa
Elongation (% in 50mm)≥ 40%≥ 40%
Hardness (Rockwell B)≤ 100 HRB≤ 100 HRB


Key Advantages of UNS10276 WNRF Flanges


  • Extreme Corrosion Resistance: Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in oxidizing & reducing acids (HCl, H₂SO₄, Cl₂ media).
  • Thermal Stability: Maintains integrity from cryogenic (-196°C) to high-temp (1040°C) environments.
  • Weldability: Low carbon content prevents carbide precipitation during welding (no post-weld heat treatment required).
  • ASME Compliance: Certified for ASME B16.5 Pressure Classes 150# to 2500#.


Critical Application Areas


  • Chemical Processing: Reactors, acid storage tanks, heat exchangers.
  • Pollution Control: Flue gas desulfurization (FGD) scrubbers, waste incineration systems.
  • Oil & Gas: Offshore platforms, sour gas piping (resists H₂S corrosion).
  • Pharmaceutical: CIP/SIP systems requiring ultra-high purity.
  • Marine Engineering: Seawater handling, ballast water systems.


Technical Compliance & Certifications


  • Conforms to: ASTM B462, ASME SB462, ASME B16.5
  • Certificates: Mill Test Reports (MTR) per EN 10204 3.1, NACE MR0175 compliant
  • Available Pressure Ratings: Class 150, 300, 600, 900, 1500, 2500

Product Tags:

1/2 WNRF Flanges

      

Nickel Alloy Weld Neck Flanges

      
China 1/2" to 24" ASTM B462 UNS10276 WNRF Flanges Nickel Alloy Weld Neck Flanges wholesale

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