UNS S31400 Flanges
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We produce UNS S31400 flanges,S31400 flanges,UNS S31400 Blind Flanges,UNS S31400 Welding Neck Flanges,UNS S31400 Slip On Flanges,UNS S31400 Socket Welding Flanges,UNS S31400 Lap joint Flanges,UNS S31400 Ring joint Flanges,UNS S31400 Slip-on flanges,UNS S31400 Weld Neck Flanges,UNS S31400 WN flanges,UNS S31400 LWN flanges, UNS S31400 Long weld neck flanges,UNS S31400 orifice flanges,UNS S31400 Spectacle blind Flanges,S31400 Spectacle flanges, S31400 spacer ring flanges,UNS S31400 Swivel Ring Flanges,UNS S31400 WNRF Flanges,UNS S31400 SORF Flanges,UNS S31400 SWRF Flanges,UNS S31400 Threaded Flanges,UNS S31400 Ring Type Joint Flanges,UNS S31400 BLRF Flanges,UNS S31400 RTJ Flanges from china

The size of UNS S31400 flanges that we could do is from 1/2” – 96”, DN15-DN2000

We could produce UNS S31400 flanges with pressre from 150LB-2500LB or PN6-PN100

The face of UNS S31400 flanges that we could do is in Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Also we could produce UNS S31400 flanges as per the drawing of the clients

Following is the standard of UNS S31400 flanges that we could do:

American standard of UNS S31400 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 S31400 flanges in DIN 2630,2620,2632,2633,2634,2635,2636,2637,2638,2501(WN);


British standard of UNS S31400 flanges in BS3293,BS4504,BS10

The Italy standard of S31400 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 S31400 flanges in JIS B27620,

Korean Standard of UNS S31400 flanges in KSB 1503,KSB 6216,KSB 2332,KSB 2333,KSD 3578,KSD 4308.

Australian standard of UNS S31400 flanges in AS 4087,AS 2129,AS/NZS 4320.1

ISO standsard of UNS S31400 flanges in ISO 7005-1,ISO 9624

Russian standard of UNS S31400 flanges in GOST 12820,GOST 12821,GOST 12836,GOST 12820-80,GOST 12821-80,GOST 12836-80.

European standard of S31400 flanges in EN1092-1

South african standard of UNS S31400 flanges in SABS-1123/SANS-1123

As per surface treatment of S31400 flange, we could do Anti-rust Oil;Black /Yellow Paint;Hot-dipped Galvanization as per the requirement of the clients

The material grade of S31400 flanges is by forging as per the standard of ASTM B462.

We will do following testing to control the quality of UNS S31400 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 S31400 flanges as per the requirement of the clients

UNS S31400 can be heat treated by annealing the material at 1038-1149°C (1900-2100°F), and then quenching in water or rapidly air cooling.

The chemical composition of UNS S31400 flanges is as follows

Chemical composition ¹

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≤ %

≤ %

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The mechanical property of UNS S31400 flanges is as follows



Tensile  strength

689 MPa

Yield  strength

345 MPa

Modulus  of elasticity

200 GPa

Elongation  at break (in 50 mm)


Hardness,  Rockwell B


We could supply material certificate of UNS S31400 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 S31400 flanges will be 100% Ultrasonic Inspection as per the forging parts UT Test standard of ASTM A 388 or EN102768.

Our UNS S31400 flanges are widely used in many industries,such as mechanical engineering, in harbour cranes, ship deck cranes, truck cranes and construction cranes as well as in excavators, antenna systems, in aviation and aerospace, in the offshore technology, rail vehicles, telescopes, tunnelling machines, wind energy turbines, underwater turbines and solar energy plants and so on

Ask for our Delivery Guarantee for our S31400 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 S31400 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 S31400 flanges, we are glad to quote the best price for your side.

Except UNS S31400 flanges,we also could produce UNS S31400 bars,UNS S31400 plates,UNS S31400 fastener,UNS S31400 bolts,UNS S31400 fittings,UNS S31400 pipes,UNS S31400 tubes,UNS S31400 springs