UNS S20400 Flanges
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We produce UNS S20400 flanges,S20400 flanges,UNS S20400 Blind Flanges,UNS S20400 Welding Neck Flanges,UNS S20400 Slip On Flanges,UNS S20400 Socket Welding Flanges,UNS S20400 Lap joint Flanges,UNS S20400 Ring joint Flanges,UNS S20400 Slip-on flanges,UNS S20400 Weld Neck Flanges,UNS S20400 WN flanges,UNS S20400 LWN flanges, UNS S20400 Long weld neck flanges,UNS S20400 orifice flanges,UNS S20400 Spectacle blind Flanges,S20400 Spectacle flanges, S20400 spacer ring flanges,UNS S20400 Swivel Ring Flanges,UNS S20400 WNRF Flanges,UNS S20400 SORF Flanges,UNS S20400 SWRF Flanges,UNS S20400 Threaded Flanges,UNS S20400 Ring Type Joint Flanges,UNS S20400 BLRF Flanges,UNS S20400 RTJ Flanges from china

The size of UNS S20400 flanges that we could do is from 1/2” – 96”, DN15-DN2000

We could produce UNS S20400 flanges with pressre from 150LB-2500LB or PN6-PN100

The face of UNS S20400 flanges that we could do is in Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Also we could produce UNS S20400 flanges as per the drawing of the clients

Following is the standard of UNS S20400 flanges that we could do:

American standard of UNS S20400 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 UNS S20400 flanges in DIN 2630,2620,2632,2633,2634,2635,2636,2637,2638,2501(WN);


British standard of UNS S20400 flanges in BS3293,BS4504,BS10

The Italy standard of S20400 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 UNS S20400 flanges in JIS B27620,

Korean Standard of UNS S20400 flanges in KSB 1503,KSB 6216,KSB 2332,KSB 2333,KSD 3578,KSD 4308.

Australian standard of UNS S20400 flanges in AS 4087,AS 2129,AS/NZS 4320.1

ISO standsard of UNS S20400 flanges in ISO 7005-1,ISO 9624

Russian standard of UNS S20400 flanges in GOST 12820,GOST 12821,GOST 12836,GOST 12820-80,GOST 12821-80,GOST 12836-80.

European standard of S20400 flanges in EN1092-1

South african standard of UNS S20400 flanges in SABS-1123/SANS-1123

As per surface treatment of S20400 flange, we could do Anti-rust Oil;Black /Yellow Paint;Hot-dipped Galvanization as per the requirement of the clients

The material grade of S20400 flanges is by forging as per the standard of ASTM B462.

We will do following testing to control the quality of UNS S20400 Flanges:Chemical Analysis,Corrosion Test,Tensile, Hardness, Flattening, Flare, Flange and Reverse-bend tests,Eddy Current Testing,Hydrostatic Testing,Air under Press Test,IGC Test (Inter Granular Corrosion Test),Micro-Structure Analysis,Radiography Test,Ultrasonic Test,Liquid Penetrate Test

We could do solution treatment, ageing treatment for UNS S20400 flanges as per the requirement of the clients

UNS S20400 is highly impact-resistant, which makes it ideal for a range of heavy duty applications. Already proven to be the endurance leader in coal handling equipment and prep plants,

The chemical composition of UNS S20400 flanges is as follows



C: 0.03 max.


P: 0.040 max.

S:0.030 max

Si:1.00 max.



N: 0.15–0.30

Cu: 1.00 max.

The mechanical property of UNS S20400 flanges is as follows

Ultimate Tensile, min.

Yield Strength (0.2% OS) min.

Elong. in 2 in., or 50mm, min., %


Hardness, max.


95 KSi

48 KSi



241 Brinell

We could supply material certificate of UNS S20400 flanges  as per the standard of EN10204-3.1 or EN10204-3.2 of third party(like TUV,DNV,GL and so on)

Our UNS S20400 flanges will be 100% Ultrasonic Inspection as per the forging parts UT Test standard of ASTM A 388 or EN102768.

Our UNS S20400 flanges are widely used in many industries,such as chemical processing, pollution control, pulp and paper production, and treatment of industrial and municipal waste,gas turbines, rocket motors, spacecraft, nuclear reactors, pumps, and tooling and so on

Ask for our Delivery Guarantee for our S20400 flanges, and we will offer a cumulative rebate of 1% for the 1st week late, 2% for the 2nd week late, etc., to a maximum of 10%. For example, a 3 week late delivery will yield a rebate of 6%. We are so sure our long delivery will be on time, we back it up with a financial guarantee.

In order to export our UNS S20400 Flanges, we will do Packing in  No Fumigate or Fumigate Plywood/Wood Pallet or Case as per the requirement of our clients

Please send us the drawing of UNS S20400 flanges, we are glad to quote the best price for your side.

Except UNS S20400 flanges,we also could produce UNS S20400 bars,UNS S20400 plates,UNS S20400 fastener,UNS S20400 bolts,UNS S20400 fittings,UNS S20400 pipes,UNS S20400 tubes,UNS S20400 springs