ASTM B283 UNS C70620 Copper Nickel Alloy Flange Forged Blind Flange BLRF

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Payment Terms	L/C,T/T
Delivery Time	7 DAYS
Packaging Details	Plywood cases/ Pallets
Product Name	Blind Flange
Standard	ASTM B283, ASME SB283
Material	UNS C70620
Size	1/2" to 48"
Class	150# 300# 600# 900# 1500#
Flange Type	Blind flange, Weldneck flange, Slip on flange, Socket flange...
Flange Face	FF, RF, RTJ
Process	Fordging, Drilling, Machining
Application	Heat Exchanger, Pressure Vessel, Chemical Industry, etc.
High Light	ASTM B283 C70620 Forged Blind Flange , Copper Nickel Alloy Steel Flange
Brand Name	YUHONG
Model Number	ASTM B283 C70620 Copper Nickel Alloy Blind Flange
Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin	CHINA

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Product Specification


Payment Terms	L/C,T/T	Delivery Time	7 DAYS
Packaging Details	Plywood cases/ Pallets	Product Name	Blind Flange
Standard	ASTM B283, ASME SB283	Material	UNS C70620
Size	1/2" to 48"	Class	150# 300# 600# 900# 1500#
Flange Type	Blind flange, Weldneck flange, Slip on flange, Socket flange...	Flange Face	FF, RF, RTJ
Process	Fordging, Drilling, Machining	Application	Heat Exchanger, Pressure Vessel, Chemical Industry, etc.
High Light	ASTM B283 C70620 Forged Blind Flange , Copper Nickel Alloy Steel Flange	Brand Name	YUHONG
Model Number	ASTM B283 C70620 Copper Nickel Alloy Blind Flange	Certification	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin	CHINA
High Light	BLRF Steel Flange ，C70620 Steel Flange ，ASTM B283 Steel Flange

ASTM B283 UNS C70620 Copper Nickel Alloy Forged Blind Flange BLRF Flange

Copper Nickel Alloy UNS C70620 exhibits excellent resistance to seawater corrosion, making it an ideal choice for marine applications. It minimizes the risk of pitting and crevice corrosion, which can compromise the integrity of the flange and connected piping systems. It also has good thermal conductivity, making them suitable for applications that may involve temperature variations, such as in heat exchangers.
The good mechanical properties including strength and ductility of C70620 can withstand various operational stresses, making it suitable for durable applications and extending the lifespan of the components.

**Chemical Composition of ASTM B283 UNS C70620 Copper Nickel Alloy Blind Flange**
	Elements
	Cu(1,2)	Pb	Zn	Fe	P	Ni(3)	C	Mn	S
(1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. (3) Ni value includes Co.
Min (%)	86.5			1.0		9.0
Max (%)		0.02	0.50	1.8	0.02	11.0	0.05	1.0	0.02

**Mechanical Properties of ASTM B283 UNS C70620 Copper Nickel Alloy Blind Flange**
Form	Temper	Temper Code	Tensile Strength (ksi)	YS-0.2% Offset (ksi)	Elongation (%)	Section Size (in)
* Measured at room temperature, 68°F (20°C).
Forgings	As Hot Forged - Air Cooled	M10	40 Min	15 Min	30 Min
Forgings	As Hot Forged - Air Cooled	M10	45 Min	18 Min	30 Min	6

The mian difference between copper materials

C70620 (CuNi 90/10)	Composition: 90% Copper, 10% Nickel Corrosion Resistance: Excellent resistance to corrosion in seawater and other marine environments. Strength: Moderate to high strength, good ductility, and formability. Typical Uses: Marine applications, heat exchangers, piping systems.
C71500 (CuNi 70/30)	Composition: 70% Copper, 30% Nickel Corrosion Resistance: Better than C70620 in terms of pitting and crevice corrosion, particularly in more aggressive environments. Strength: Higher than C70620, providing increased tensile and yield strength. Typical Uses: More demanding marine applications, condenser tubes, and chemical process equipment.
C44300 (CuNi 90/10 + Tin)	Composition: 90% Copper, 10% Nickel, with a small percentage of Tin. Corrosion Resistance: Good, but typically less than C70620 due to lower nickel content. Strength: Lower strength compared to C70620, but improved machinability. Typical Uses: Used in applications requiring good formability and machinability, like some types of fittings and components.
C71500 vs. C70620	Corrosion Resistance: C71500 offers superior corrosion resistance in brackish water compared to C70620. Mechanical Properties: C71500 has higher strength and is often used in more severe service conditions where structural integrity is crucial.
Summary Corrosion Resistance: C71500 > C70620 > C44300 (in marine environments). Strength: C71500 > C70620 > C44300. Applications: C70620 is versatile for many marine applications, while C71500 is ideal for harsher conditions. C44300 is suitable when good machinability is required.

Penetration test

Application

Marine Engineering: Used in shipbuilding and construction of marine equipment such as hulls, piping systems, and ballast tanks.
Offshore Platforms: Employed in structures that are exposed to seawater.
Heat Exchangers: Frequently used in systems for cooling and heating in power plants and other industrial processes.

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YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...

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