1/2" to 24" ASTM B462 UNS10276 WNRF Flanges Nickel Alloy Weld Neck Flanges
Price:
Negotiable
MOQ:
1pcs
Delivery Time:
According to quantity
Brand:
YUHONG
Product Description
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
| Property | Specification |
|---|---|
| Material Standard | ASTM B462 |
| UNS Number | N10276 (UNS10276) |
| Common Name | Hastelloy C276 |
| Flange Standard | ASME B16.5 |
| Face Type | Raised Face (RF) |
| Connection | Weld Neck (WN) |
Exact Chemical Composition (ASTM B462)
| Element | Min (%) | Max (%) | Role |
|---|---|---|---|
| Nickel (Ni) | Bal. | - | Base Metal, Corrosion Resistance |
| Chromium (Cr) | 14.5 | 16.5 | Oxidation Resistance |
| Molybdenum (Mo) | 15.0 | 17.0 | Pitting/Crevice Resistance |
| Iron (Fe) | 4.0 | 7.0 | Strength |
| Tungsten (W) | 3.0 | 4.5 | Corrosion Resistance |
| Cobalt (Co) | - | 2.5 | High-Temp Stability |
| Manganese (Mn) | - | 1.0 | Deoxidizer |
| Silicon (Si) | - | 0.08 | Deoxidizer |
| Carbon (C) | - | 0.01 | Prevents Sensitization |
| Sulfur (S) | - | 0.03 | Impurity Control |
Mechanical Properties (Typical Values at 20°C)
| Property | Value | ASTM 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
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai