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ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
Specifications
Brand Name :
YUHONG
Model Number :
ASTM B462 C276 FLANGE
Certification :
ABS, BV, ISO, ASTM, SGS, LR
Place of Origin :
CHINA
MOQ :
1 PC
Price :
Negotiable
Payment Terms :
T/T,L/C
Supply Ability :
10000 PCS /Month
Delivery Time :
Depends On Quantity
Packaging Details :
Wooden Cases
Standard :
ASTM B283, ASME B16.5
Grade :
C70620 (Cupronickel 70/30), Copper-Nickel Alloy (Cu70-Ni30)
Product Type :
Weld Neck (WN) Flange, Raised Face (RF)
Pressure Class :
Class 150, 300, 600, 900, 1500
Size Range :
1/2” – 24” (DN15 – DN600), Customizable
Surface Treatment :
Pickled & Passivated (P/P), Polished, Bright Annealed, Natural Finish
Description
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
Brief Introduction

ASTM B283 C70620 WN RF Flange is a high-performance cupronickel alloy forged flange, strictly manufactured in accordance with ASTM B283 (material standard for copper-nickel alloy forgings) and ASME B16.5 (dimensional standard for flanges). C70620 (commonly known as Cupronickel 70/30) is a premium copper-nickel alloy composed of 70% copper and 30% nickel, supplemented by trace alloying elements, which is famous for its excellent corrosion resistance, especially outstanding resistance to seawater corrosion, erosion corrosion and biofouling. As a Weld Neck (WN) flange with Raised Face (RF) structure, it has the advantages of high structural strength, reliable sealing performance and strong connection stability, specially designed for marine, offshore and other harsh corrosive industrial piping systems, and widely used in marine engineering, seawater desalination, coastal power generation and other key fields.

Chemical Composition Analysis (wt%)
Alloy Grade Cu Ni Fe Mn C Si P S Other
ASTM B283 C70620 (Cupronickel 70/30) 68.0-72.0 28.0-32.0 0.4-1.0 0.5-1.0 ≤0.05 ≤0.15 ≤0.015 ≤0.015 ≤0.5 (Total)
Typical Mechanical Properties
Mechanical Property Standard Requirement (Min.) Typical Value (Solution Annealed)
Yield Strength (Rp0.2), MPa ≥170 180-220
Tensile Strength (Rm), MPa ≥450 460-520
Elongation (A), % ≥35 40-50
Hardness (HB), Brinell ≤140 110-130
Impact Toughness (KV), J (20℃) ≥120 130-180
Max. Working Temperature 260℃ (Long-term) 260℃
Available Tests
Test Type Standard
Chemical Composition Analysis (PMI) Spectrometer (XRF/OES), ASTM E1019
Tensile & Impact Test ASTM E8/E8M, ASTM A370, Charpy V-Notch
Hardness Test ASTM E10 (Brinell), ASTM E18 (Rockwell), Vickers
Solution Annealing Inspection ASTM B283, Metallographic Microstructure Test
Corrosion Resistance Test ASTM G48 (Pitting/Crevice), ASTM B117 (Salt Spray), ASTM G31 (Immersion Test in Seawater)
Non-Destructive Testing (NDT) UT (Ultrasonic), MT (Magnetic Particle), PT (Liquid Penetrant)
Hydrostatic/Pneumatic Pressure Test ASTM B283, ASME B16.5
Dimensional & Visual Inspection ASTM B283, ASME B16.5, CMM, Gauge Inspection
Material Test Certificate (MTC) EN 10204 3.1/3.2, ASTM B283
Product Application Scope
Industry Field Typical Applications
Marine Engineering & Shipbuilding Marine engine cooling pipelines, shipboard seawater systems, offshore platform piping, ship hull piping connections, marine auxiliary equipment flanges
Seawater Desalination Desalination plant seawater intake/discharge pipelines, reverse osmosis system flanges, brine treatment equipment connections, desalination auxiliary pipelines
Coastal Power Generation Coastal thermal power plant seawater cooling systems, nuclear power plant auxiliary seawater pipelines, power station condenser flanges, circulating water system connections
Offshore Oil & Gas Offshore oil platform seawater pipelines, offshore drilling equipment corrosive media connections, marine oil transportation auxiliary pipelines flanges
Coastal Industrial Equipment Coastal chemical plant seawater-based pipelines, coastal wastewater treatment equipment, coastal aquaculture equipment connections, harbor engineering piping
Other Marine-Related Fields Marine water treatment equipment, coastal bridge water pipelines, marine research equipment piping, offshore wind power plant seawater cooling flanges

ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange

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ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange

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Product Detail
Brand Name :
YUHONG
Model Number :
ASTM B462 C276 FLANGE
Certification :
ABS, BV, ISO, ASTM, SGS, LR
Place of Origin :
CHINA
MOQ :
1 PC
Price :
Negotiable
Contact Supplier
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange
ASTM B283 C70620 WN RF Flange, Cupronickel 70/30 Weld Neck Raised Face Forged Flange

Yuhong Group Co.,Ltd

Verified Supplier
14 Years
zhejiang, ningbo
Since 2007
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Seamless Pipe, Stainless Steel Seamless Tube, Duplex Stainless Steel Pipe
Total Annual :
50M-70M
Employee Number :
50~850
Certification Level :
Verified Supplier
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