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ASTM A182 F51 Duplex Steel Spectacle Blind Flange / B16.48 RTJ Figure-8 Blanks

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ASTM A182 F51 Duplex Steel Spectacle Blind Flange / B16.48 RTJ Figure-8 Blanks

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Brand Name :	YUHONG
Model Number :	ASTM A182 F51 Spetacle Blind Flange
Certification :	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Payment Terms :	L/C, T/T
Delivery Time :	7 DAYS

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ASTM A182 F51 Duplex Steel Spectacle Blind Flange / B16.48 RTJ Figure-8 Blanks

ASME B16.48 ASTM A182 F51 Duplex Steel Spectacle Blind Flange Figure-8 Blanks

Figure-8 flanges, also known as sight or spectacle flanges, are specialized components used in piping systems to facilitate maintenance, isolation, and inspection of pipelines. The figure-8 design features two circular ends connected by a narrow waist, which offers flexibility in alignment and connection. The material can be made from various materials including carbon steel, stainless steel, and duplex stainless steel, depending on the application requirements. Their unique design allows for efficient operation and flexibility in various industrial applications.

Advantages:

Flexibility: The figure-8 design allows for slight misalignments, making installation easier and reducing stress on the pipe system.
Strength: Offers a good balance of strength and weight, making them suitable for high-pressure applications.
Corrosion Resistance: Depending on the material, they can offer excellent resistance to various corrosive environments.

ASTM A182 F51 Duplex Steel Flange Chemical Composition

C	Mn	Si	P	S	Cr	Mo	Ni	N	Fe
0.030 max	2.00 max	1.00 max	0.030 max	0.020 max	22.0 – 23.0	3.0 – 3.5	4.50 – 6.50	0.14 – 0.20	63.72 min

ASTM A182 F51 Duplex Steel Flange Mechanical Table

Density (g/cm 3)	Density (lb/in 3)	Melting Point (°C)	Melting Point (°F)
7.805	0.285	1420 – 1465	2588 – 2669

Other Types of Duplex Steel Flange

Duplex 2205 Flanges	EN TYPE	DIN
WN – Welding Neck	EN-TYPE 11	DIN 2631
		DIN 2632
		DIN 2633
		DIN 2634
		DIN 2635
BL – Blind	EN-TYPE 05	DIN 2527
SO – Slip On	EN-TYPE 01/12
LJ – Lap Joint	EN-TYPE 02/04	DIN 2641
		DIN 2642
		DIN 2655
		DIN 2656
LWN – Long Welding Neck / Integral	EN-TYPE 21
Welding Collars	EN-TYPE 32/34
Super Duplex 2507 Flat Flange for Welding		DIN 2573
Super Duplex 2507 Flat Flange for Welding		DIN 2576
SW – Socket Weld	EN-TYPE 14
THR – Threaded	EN-TYPE 13	DIN 2566
Super Duplex 2507 Lap Joint Short Stub End		DIN 2673

Product Usage & Application

Petrochemical Industry
Chemical Industry
Nuclear Power Plant Industry
Oil and Gas Industry
Research & Development
Mega Projects & Defense & Development Industries
Pulp & Paper Industry
Marine Applications

ASTM A182 F51 Duplex Steel Spectacle Blind Flange / B16.48 RTJ Figure-8 Blanks

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