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FV520B Flanges
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We produce FV520B flanges,FV 520 B flanges,FV520B Blind Flanges,FV520B Welding Neck Flanges,FV520B Slip On Flanges,FV520B Socket Welding Flanges,FV520B Lap joint Flanges,FV520B Ring joint Flanges,FV520B Slip-on flanges,FV520B Weld Neck Flanges,FV520B WN flanges,FV520B LWN flanges, FV520B Long weld neck flanges,Nimonic 90 orifice flanges,FV520B Spectacle blind Flanges,FV 520 B Spectacle flanges, FV 520 B spacer ring flanges,FV520B Swivel Ring Flanges,FV520B WNRF Flanges,FV520B SORF Flanges,FV520B SWRF Flanges,FV520B Threaded Flanges,FV520B Ring Type Joint Flanges,FV520B BLRF Flanges,FV520B RTJ Flanges from china
The size of FV520B flanges that we could do is from 1/2” – 96”, DN15-DN2000
We could produce FV520B flanges with pressre from 150LB-2500LB or PN6-PN100
The face of FV520B flanges that we could do is in Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Also we could produce FV520B flanges as per the drawing of the clients
Following is the standard of FV520B flanges that we could do:
American standard of FV520B flanges in ANSI B16.5 ;ASME B16.47 Series A(MSS SP-44);ASME B16.47 Series B(API 605);ANSI B16.1,AWWA C207
Germany standard of FV520B flanges in DIN 2630,2620,2632,2633,2634,2635,2636,2637,2638,2501(WN);
DIN2573,2576,2527,2655,2656(PL);DIN2566.
British standard of FV520B flanges in BS3293,BS4504,BS10
The Italy standard of FV 520 B flanges in UNI27676-67,UNI27677-67,UNI27678-67,UNI6083-67,UNI6084-67,,UNI6088-67,,UNI6089-67,UNI27699-67,,UNI2300-67,UNI27680-67,,UNI27681-67,,UNI27682-67,,UNI27683-67
Janpanese standard of FV520B flanges in JIS B27620,
Korean Standard of FV520B flanges in KSB 1503,KSB 6216,KSB 2332,KSB 2333,KSD 3578,KSD 4308.
Australian standard of FV520B flanges in AS 4087,AS 2129,AS/NZS 4320.1
ISO standsard of FV520B flanges in ISO 7005-1,ISO 9624
Russian standard of FV520B flanges in GOST 12820,GOST 12821,GOST 12836,GOST 12820-80,GOST 12821-80,GOST 12836-80.
European standard of FV 520 B flanges in EN1092-1
South african standard of FV520B flanges in SABS-1123/SANS-1123
As per surface treatment of FV 520 B flange, we could do Anti-rust Oil;Black /Yellow Paint;Hot-dipped Galvanization as per the requirement of the clients
The material grade of FV 520 B flanges is by forging as per the standard of ASTM B462.
We could do solution treatment, ageing treatment for FV520B flanges as per the requirement of the clients
FV520B has better resistance to intergranular and pitting corrosion that other precipitation hardening grades such as 17/4PH stainless

The chemical composition of FV520B flanges is as follows

Analysis

C

0.07% max

Cr

13.20-14.70%

Mn

1.00% max

Ni

5.00-6.00%

Si

0.70% max

Mo

1.20-2.00%

P

0.035% max

Nb

0.20-0.70%

S

0.025% max

Cu

1.20-2.00%


The mechanical property of FV520B flanges is as follows

Typical Mechanical Properties*



Supply Condition

0.2% Proof
Stress

KSI

Tensile
Strength

KSI

Elongation
%
min

Hardness

Brinell
HB

Izod

Joules
min

Solution ,ageing treatment

116

136-159

15

277-341

54


In order to control the quanlity of FV520B flanges, our workshop has followsing inspection equipment:Impact testing machine ,Magnetic particle flaw detector ,Metallographic Microscope ,Portable Spectrometer ,Ultrasonic Flaw Detector ,Universal testing machine ,Hardness testing machine
We could supply material certificate of FV520B flanges  as per the standard of EN10204-3.1 or EN10204-3.2 of third party(like TUV,DNV,GL and so on)
Our FV520B flanges will be 100% Ultrasonic Inspection as per the forging parts UT Test standard of ASTM A 388 or EN102768.
Our FV520B flanges are widely used in many industries,such as bearing industry, power-generation including steam and gas-turbine, wind energy, mining and construction equipment, oil & gas, petrochemical, defense, rail transportation, and a wide variety of general industrial applications and so on

As per packing of FV520B flanges, we will use  Veneer Case or Plywood Case
Please send us the drawing of FV520B flanges, we are glad to quote the best price for your side.
Except FV520B flanges,we also could produce FV520B bars,FV520B plates,FV520B fasteners,FV520B bolts,FV520B pipe fittings,FV520B pipes,FV520B tubes,FV520B springs