UNS S31050 Flanges
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We produce UNS S31050 flanges,S31050 flanges,UNS S31050 Blind Flanges,UNS S31050 Welding Neck Flanges,UNS S31050 Slip On Flanges,UNS S31050 Socket Welding Flanges,UNS S31050 Lap joint Flanges,UNS S31050 Ring joint Flanges,UNS S31050 Slip-on flanges,UNS S31050 Weld Neck Flanges,UNS S31050 WN flanges,UNS S31050 LWN flanges, UNS S31050 Long weld neck flanges,UNS S31050 orifice flanges,UNS S31050 Spectacle blind Flanges,S31050 Spectacle flanges, S31050 spacer ring flanges,UNS S31050 Swivel Ring Flanges,UNS S31050 WNRF Flanges,UNS S31050 SORF Flanges,UNS S31050 SWRF Flanges,UNS S31050 Threaded Flanges,UNS S31050 Ring Type Joint Flanges,UNS S31050 BLRF Flanges,UNS S31050 RTJ Flanges from china

The size of UNS S31050 flanges that we could do is from 1/2” – 96”, DN15-DN2000

We could produce UNS S31050 flanges with pressre from 150LB-2500LB or PN6-PN100

The face of UNS S31050 flanges that we could do is in Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Also we could produce UNS S31050 flanges as per the drawing of the clients

Following is the standard of UNS S31050 flanges that we could do:

American standard of UNS S31050 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 S31050 flanges in DIN 2630,2620,2632,2633,2634,2635,2636,2637,2638,2501(WN);


British standard of UNS S31050 flanges in BS3293,BS4504,BS10

The Italy standard of S31050 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 S31050 flanges in JIS B27620,

Korean Standard of UNS S31050 flanges in KSB 1503,KSB 6216,KSB 2332,KSB 2333,KSD 3578,KSD 4308.

Australian standard of UNS S31050 flanges in AS 4087,AS 2129,AS/NZS 4320.1

ISO standsard of UNS S31050 flanges in ISO 7005-1,ISO 9624

Russian standard of UNS S31050 flanges in GOST 12820,GOST 12821,GOST 12836,GOST 12820-80,GOST 12821-80,GOST 12836-80.

European standard of S31050 flanges in EN1092-1

South african standard of UNS S31050 flanges in SABS-1123/SANS-1123

As per surface treatment of S31050 flange, we could do Anti-rust Oil;Black /Yellow Paint;Hot-dipped Galvanization as per the requirement of the clients

The material grade of S31050 flanges is by forging as per the standard of ASTM B462.

We will do following testing to control the quality of UNS S31050 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 S31050 flanges as per the requirement of the clients

UNS S31050 has an optimized chemical composition designed specifically for applications in urea plants

The chemical composition of UNS S31050 flanges is as follows


Content (%)










≤ 2




≤ 0.70




≤ 0.020


≤ 0.010

The mechanical property of UNS S31050 flanges is as follows



Tensile strength

540-740 MPa

Proof strength

250 MPa

Elongation at break (In 2", 50% cold worked)


Hardness, Brinell


We could supply material certificate of UNS S31050 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 S31050 flanges will be 100% Ultrasonic Inspection as per the forging parts UT Test standard of ASTM A 388 or EN102768.

Our UNS S31050 flanges are widely used in many industries,such as Butterfly Valves,Globe Valves,compressed air stream,Agitated Neutsche Filter,Scrubber vessels.Accumulators,Shell and Tube Heat Exchangers,Storage tanks and Handling Equipments,Bulk Liquefied Petroleum Gas (LPG), Propane & Ammonia Storage and Handling Systems,Dry Dock & Ship Yard Maintenance and so on

Ask for our Delivery Guarantee for our S31050 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 S31050 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 S31050 flanges, we are glad to quote the best price for your side.

Except UNS S31050 flanges,we also could produce UNS S31050 bars,UNS S31050 plates,UNS S31050 fastener,UNS S31050 bolts,UNS S31050 fittings,UNS S31050 pipes,UNS S31050 tubes,UNS S31050 springs